./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.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 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:10:31,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:10:31,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:10:31,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:10:31,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:10:31,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:10:31,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:10:31,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:10:31,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:10:31,329 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:10:31,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:10:31,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:10:31,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:10:31,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:10:31,331 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:10:31,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:10:31,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:10:31,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:10:31,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:10:31,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:10:31,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:10:31,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:10:31,335 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:10:31,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:10:31,335 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:10:31,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:10:31,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:10:31,337 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:10:31,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:10:31,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:10:31,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:10:31,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:10:31,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:10:31,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:10:31,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:10:31,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:10:31,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:10:31,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:10:31,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:10:31,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 [2024-11-19 03:10:31,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:10:31,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:10:31,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:10:31,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:10:31,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:10:31,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-11-19 03:10:33,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:10:33,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:10:33,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-11-19 03:10:33,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb733791/e5431d9b5938407baf10250f0142fe2b/FLAG631053a7a [2024-11-19 03:10:33,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb733791/e5431d9b5938407baf10250f0142fe2b [2024-11-19 03:10:33,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:10:33,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:10:33,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:10:33,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:10:33,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:10:33,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:33" (1/1) ... [2024-11-19 03:10:33,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bc284c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:33, skipping insertion in model container [2024-11-19 03:10:33,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:33" (1/1) ... [2024-11-19 03:10:33,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:10:34,902 WARN L250 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--pf.ko-main.cil.out.i[138616,138629] [2024-11-19 03:10:35,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:10:35,101 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:10:35,313 WARN L250 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--pf.ko-main.cil.out.i[138616,138629] [2024-11-19 03:10:35,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:10:35,400 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:10:35,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35 WrapperNode [2024-11-19 03:10:35,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:10:35,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:10:35,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:10:35,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:10:35,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,585 INFO L138 Inliner]: procedures = 161, calls = 1531, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1863 [2024-11-19 03:10:35,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:10:35,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:10:35,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:10:35,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:10:35,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,799 INFO L175 MemorySlicer]: Split 1089 memory accesses to 22 slices as follows [6, 2, 3, 3, 3, 1, 72, 5, 2, 6, 522, 5, 37, 18, 8, 24, 11, 10, 10, 3, 13, 325]. 48 percent of accesses are in the largest equivalence class. The 793 initializations are split as follows [0, 2, 0, 0, 3, 0, 0, 5, 0, 0, 512, 5, 28, 18, 4, 0, 11, 10, 10, 0, 13, 172]. The 195 writes are split as follows [5, 0, 2, 0, 0, 0, 72, 0, 2, 6, 0, 0, 0, 0, 0, 24, 0, 0, 0, 0, 0, 84]. [2024-11-19 03:10:35,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:35,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:36,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:10:36,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:10:36,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:10:36,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:10:36,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (1/1) ... [2024-11-19 03:10:36,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:10:36,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:10:36,058 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) [2024-11-19 03:10:36,062 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 [2024-11-19 03:10:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-11-19 03:10:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-11-19 03:10:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2024-11-19 03:10:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2024-11-19 03:10:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-19 03:10:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-19 03:10:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-11-19 03:10:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-11-19 03:10:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-11-19 03:10:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-11-19 03:10:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:10:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:10:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:10:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:10:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:10:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:10:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:10:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:10:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-19 03:10:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-19 03:10:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-19 03:10:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-19 03:10:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-19 03:10:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-19 03:10:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-19 03:10:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-19 03:10:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-19 03:10:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-19 03:10:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-19 03:10:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-19 03:10:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-19 03:10:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2024-11-19 03:10:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2024-11-19 03:10:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-19 03:10:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:10:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-19 03:10:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-19 03:10:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-19 03:10:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-19 03:10:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-19 03:10:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2024-11-19 03:10:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2024-11-19 03:10:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2024-11-19 03:10:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2024-11-19 03:10:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-11-19 03:10:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-11-19 03:10:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:10:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:10:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2024-11-19 03:10:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2024-11-19 03:10:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2024-11-19 03:10:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2024-11-19 03:10:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2024-11-19 03:10:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2024-11-19 03:10:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:10:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:10:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:10:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:10:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:10:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:10:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 03:10:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 03:10:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-19 03:10:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-19 03:10:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-19 03:10:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-19 03:10:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-19 03:10:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-19 03:10:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-19 03:10:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:10:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:10:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2024-11-19 03:10:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2024-11-19 03:10:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2024-11-19 03:10:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2024-11-19 03:10:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2024-11-19 03:10:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2024-11-19 03:10:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:10:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-19 03:10:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-19 03:10:36,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-19 03:10:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2024-11-19 03:10:36,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2024-11-19 03:10:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2024-11-19 03:10:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2024-11-19 03:10:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2024-11-19 03:10:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 03:10:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 03:10:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-19 03:10:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-19 03:10:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-19 03:10:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2024-11-19 03:10:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2024-11-19 03:10:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2024-11-19 03:10:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2024-11-19 03:10:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-11-19 03:10:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-19 03:10:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-11-19 03:10:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-11-19 03:10:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 03:10:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-11-19 03:10:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2024-11-19 03:10:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2024-11-19 03:10:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2024-11-19 03:10:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2024-11-19 03:10:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2024-11-19 03:10:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2024-11-19 03:10:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:10:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:10:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:10:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:10:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:10:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:10:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:10:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:10:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 03:10:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-19 03:10:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-19 03:10:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-19 03:10:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-19 03:10:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2024-11-19 03:10:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2024-11-19 03:10:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:10:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:10:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-11-19 03:10:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-11-19 03:10:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2024-11-19 03:10:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2024-11-19 03:10:36,638 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:10:36,640 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:10:44,519 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2024-11-19 03:10:44,519 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:10:44,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:10:44,542 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 03:10:44,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:44 BoogieIcfgContainer [2024-11-19 03:10:44,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:10:44,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:10:44,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:10:44,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:10:44,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:10:33" (1/3) ... [2024-11-19 03:10:44,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7be511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:10:44, skipping insertion in model container [2024-11-19 03:10:44,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:35" (2/3) ... [2024-11-19 03:10:44,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7be511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:10:44, skipping insertion in model container [2024-11-19 03:10:44,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:44" (3/3) ... [2024-11-19 03:10:44,550 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-11-19 03:10:44,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:10:44,567 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:10:44,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:10:44,664 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;@6816a234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:10:44,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:10:44,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 581 states, 415 states have (on average 1.3493975903614457) internal successors, (560), 429 states have internal predecessors, (560), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-19 03:10:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 03:10:44,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:10:44,685 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:10:44,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:10:44,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:10:44,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1454029286, now seen corresponding path program 1 times [2024-11-19 03:10:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:10:44,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893134274] [2024-11-19 03:10:44,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:10:44,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:10:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:10:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:10:46,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:10:46,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893134274] [2024-11-19 03:10:46,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893134274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:10:46,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:10:46,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:10:46,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099578585] [2024-11-19 03:10:46,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:10:46,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:10:46,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:10:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:10:46,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:10:46,493 INFO L87 Difference]: Start difference. First operand has 581 states, 415 states have (on average 1.3493975903614457) internal successors, (560), 429 states have internal predecessors, (560), 128 states have call successors, (128), 38 states have call predecessors, (128), 38 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:10:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:10:46,822 INFO L93 Difference]: Finished difference Result 1610 states and 2315 transitions. [2024-11-19 03:10:46,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:10:46,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-19 03:10:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:10:46,851 INFO L225 Difference]: With dead ends: 1610 [2024-11-19 03:10:46,851 INFO L226 Difference]: Without dead ends: 1024 [2024-11-19 03:10:46,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:10:46,867 INFO L432 NwaCegarLoop]: 1160 mSDtfsCounter, 628 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:10:46,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1924 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:10:46,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2024-11-19 03:10:46,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1010. [2024-11-19 03:10:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 724 states have (on average 1.3370165745856353) internal successors, (968), 737 states have internal predecessors, (968), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (213), 213 states have call predecessors, (213), 213 states have call successors, (213) [2024-11-19 03:10:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1400 transitions. [2024-11-19 03:10:47,004 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1400 transitions. Word has length 16 [2024-11-19 03:10:47,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:10:47,005 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1400 transitions. [2024-11-19 03:10:47,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:10:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1400 transitions. [2024-11-19 03:10:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 03:10:47,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:10:47,008 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:10:47,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:10:47,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:10:47,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:10:47,009 INFO L85 PathProgramCache]: Analyzing trace with hash 983832029, now seen corresponding path program 1 times [2024-11-19 03:10:47,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:10:47,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386484564] [2024-11-19 03:10:47,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:10:47,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:10:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:10:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:10:48,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:10:48,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386484564] [2024-11-19 03:10:48,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386484564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:10:48,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:10:48,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 03:10:48,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211215519] [2024-11-19 03:10:48,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:10:48,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:10:48,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:10:48,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:10:48,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:10:48,233 INFO L87 Difference]: Start difference. First operand 1010 states and 1400 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2024-11-19 03:10:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:10:48,289 INFO L93 Difference]: Finished difference Result 2017 states and 2797 transitions. [2024-11-19 03:10:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:10:48,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 18 [2024-11-19 03:10:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:10:48,299 INFO L225 Difference]: With dead ends: 2017 [2024-11-19 03:10:48,300 INFO L226 Difference]: Without dead ends: 1010 [2024-11-19 03:10:48,304 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 [2024-11-19 03:10:48,306 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 779 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:10:48,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 788 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:10:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2024-11-19 03:10:48,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2024-11-19 03:10:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 724 states have (on average 1.3342541436464088) internal successors, (966), 737 states have internal predecessors, (966), 219 states have call successors, (219), 67 states have call predecessors, (219), 66 states have return successors, (213), 213 states have call predecessors, (213), 213 states have call successors, (213) [2024-11-19 03:10:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1398 transitions. [2024-11-19 03:10:48,360 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1398 transitions. Word has length 18 [2024-11-19 03:10:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:10:48,361 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1398 transitions. [2024-11-19 03:10:48,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2024-11-19 03:10:48,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1398 transitions. [2024-11-19 03:10:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-19 03:10:48,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:10:48,362 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] [2024-11-19 03:10:48,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:10:48,362 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:10:48,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:10:48,363 INFO L85 PathProgramCache]: Analyzing trace with hash -909447033, now seen corresponding path program 1 times [2024-11-19 03:10:48,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:10:48,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640956877] [2024-11-19 03:10:48,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:10:48,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:10:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:10:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:10:49,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:10:49,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640956877] [2024-11-19 03:10:49,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640956877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:10:49,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:10:49,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:10:49,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435625647] [2024-11-19 03:10:49,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:10:49,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:10:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:10:49,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:10:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:10:49,657 INFO L87 Difference]: Start difference. First operand 1010 states and 1398 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-19 03:10:53,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:10:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:10:53,881 INFO L93 Difference]: Finished difference Result 2423 states and 3344 transitions. [2024-11-19 03:10:53,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:10:53,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 22 [2024-11-19 03:10:53,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:10:53,892 INFO L225 Difference]: With dead ends: 2423 [2024-11-19 03:10:53,892 INFO L226 Difference]: Without dead ends: 1416 [2024-11-19 03:10:53,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:10:53,897 INFO L432 NwaCegarLoop]: 1276 mSDtfsCounter, 745 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:10:53,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1823 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:10:53,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-19 03:10:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1392. [2024-11-19 03:10:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 993 states have (on average 1.3333333333333333) internal successors, (1324), 1010 states have internal predecessors, (1324), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2024-11-19 03:10:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1918 transitions. [2024-11-19 03:10:53,981 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1918 transitions. Word has length 22 [2024-11-19 03:10:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:10:53,982 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1918 transitions. [2024-11-19 03:10:53,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-19 03:10:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1918 transitions. [2024-11-19 03:10:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 03:10:53,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:10:53,984 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] [2024-11-19 03:10:53,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:10:53,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:10:53,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:10:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash -428234540, now seen corresponding path program 1 times [2024-11-19 03:10:53,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:10:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502554443] [2024-11-19 03:10:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:10:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:10:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:10:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:10:55,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:10:55,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502554443] [2024-11-19 03:10:55,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502554443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:10:55,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:10:55,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:10:55,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516457281] [2024-11-19 03:10:55,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:10:55,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:10:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:10:55,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:10:55,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:10:55,281 INFO L87 Difference]: Start difference. First operand 1392 states and 1918 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 03:10:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:10:55,459 INFO L93 Difference]: Finished difference Result 2799 states and 3861 transitions. [2024-11-19 03:10:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:10:55,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-19 03:10:55,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:10:55,472 INFO L225 Difference]: With dead ends: 2799 [2024-11-19 03:10:55,472 INFO L226 Difference]: Without dead ends: 1410 [2024-11-19 03:10:55,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:10:55,483 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 12 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:10:55,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1565 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:10:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-19 03:10:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1394. [2024-11-19 03:10:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 995 states have (on average 1.3326633165829145) internal successors, (1326), 1012 states have internal predecessors, (1326), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2024-11-19 03:10:55,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1920 transitions. [2024-11-19 03:10:55,581 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1920 transitions. Word has length 30 [2024-11-19 03:10:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:10:55,581 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1920 transitions. [2024-11-19 03:10:55,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 03:10:55,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1920 transitions. [2024-11-19 03:10:55,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 03:10:55,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:10:55,587 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, 1] [2024-11-19 03:10:55,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:10:55,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:10:55,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:10:55,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2061059013, now seen corresponding path program 1 times [2024-11-19 03:10:55,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:10:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046587215] [2024-11-19 03:10:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:10:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:10:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:10:56,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:10:56,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:10:56,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046587215] [2024-11-19 03:10:56,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046587215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:10:56,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083547123] [2024-11-19 03:10:56,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:10:56,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:10:56,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:10:56,709 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) [2024-11-19 03:10:56,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:10:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:10:58,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:10:58,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:10:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:10:58,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:10:58,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083547123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:10:58,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:10:58,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:10:58,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939172502] [2024-11-19 03:10:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:10:58,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:10:58,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:10:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:10:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:10:58,518 INFO L87 Difference]: Start difference. First operand 1394 states and 1920 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 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) [2024-11-19 03:10:58,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:10:58,648 INFO L93 Difference]: Finished difference Result 2823 states and 3897 transitions. [2024-11-19 03:10:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:10:58,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 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 34 [2024-11-19 03:10:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:10:58,660 INFO L225 Difference]: With dead ends: 2823 [2024-11-19 03:10:58,661 INFO L226 Difference]: Without dead ends: 1432 [2024-11-19 03:10:58,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:10:58,668 INFO L432 NwaCegarLoop]: 793 mSDtfsCounter, 16 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:10:58,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1572 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:10:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-19 03:10:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1398. [2024-11-19 03:10:58,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 999 states have (on average 1.3313313313313313) internal successors, (1330), 1016 states have internal predecessors, (1330), 300 states have call successors, (300), 99 states have call predecessors, (300), 98 states have return successors, (294), 294 states have call predecessors, (294), 294 states have call successors, (294) [2024-11-19 03:10:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1924 transitions. [2024-11-19 03:10:58,752 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1924 transitions. Word has length 34 [2024-11-19 03:10:58,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:10:58,752 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 1924 transitions. [2024-11-19 03:10:58,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 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) [2024-11-19 03:10:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1924 transitions. [2024-11-19 03:10:58,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 03:10:58,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:10:58,754 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, 1, 1, 1, 1, 1] [2024-11-19 03:10:58,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 03:10:58,958 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 [2024-11-19 03:10:58,959 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:10:58,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:10:58,959 INFO L85 PathProgramCache]: Analyzing trace with hash -394368894, now seen corresponding path program 1 times [2024-11-19 03:10:58,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:10:58,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775061263] [2024-11-19 03:10:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:10:58,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:10:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:00,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:00,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775061263] [2024-11-19 03:11:00,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775061263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:00,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70945661] [2024-11-19 03:11:00,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:00,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:00,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:00,071 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) [2024-11-19 03:11:00,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 03:11:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:01,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 2958 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:01,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 03:11:01,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70945661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531030690] [2024-11-19 03:11:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:01,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:01,572 INFO L87 Difference]: Start difference. First operand 1398 states and 1924 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (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) [2024-11-19 03:11:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:01,746 INFO L93 Difference]: Finished difference Result 4136 states and 5684 transitions. [2024-11-19 03:11:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:01,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (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 38 [2024-11-19 03:11:01,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:01,764 INFO L225 Difference]: With dead ends: 4136 [2024-11-19 03:11:01,764 INFO L226 Difference]: Without dead ends: 2741 [2024-11-19 03:11:01,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:01,773 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 750 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:01,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1556 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:11:01,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2024-11-19 03:11:01,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2258. [2024-11-19 03:11:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2258 states, 1608 states have (on average 1.3264925373134329) internal successors, (2133), 1634 states have internal predecessors, (2133), 488 states have call successors, (488), 162 states have call predecessors, (488), 161 states have return successors, (482), 481 states have call predecessors, (482), 482 states have call successors, (482) [2024-11-19 03:11:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 3103 transitions. [2024-11-19 03:11:01,884 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 3103 transitions. Word has length 38 [2024-11-19 03:11:01,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:01,885 INFO L471 AbstractCegarLoop]: Abstraction has 2258 states and 3103 transitions. [2024-11-19 03:11:01,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (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) [2024-11-19 03:11:01,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 3103 transitions. [2024-11-19 03:11:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-19 03:11:01,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:01,886 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, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:01,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 03:11:02,087 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 [2024-11-19 03:11:02,087 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:02,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 789422399, now seen corresponding path program 1 times [2024-11-19 03:11:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:02,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524951187] [2024-11-19 03:11:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:02,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:03,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:03,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524951187] [2024-11-19 03:11:03,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524951187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:03,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969774095] [2024-11-19 03:11:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:03,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:03,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:03,304 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) [2024-11-19 03:11:03,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 03:11:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:04,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:04,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:04,784 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:04,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969774095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:04,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:04,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:04,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016144594] [2024-11-19 03:11:04,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:04,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:04,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:04,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:04,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:04,786 INFO L87 Difference]: Start difference. First operand 2258 states and 3103 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 03:11:04,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:04,920 INFO L93 Difference]: Finished difference Result 4547 states and 6259 transitions. [2024-11-19 03:11:04,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:04,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-11-19 03:11:04,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:04,941 INFO L225 Difference]: With dead ends: 4547 [2024-11-19 03:11:04,941 INFO L226 Difference]: Without dead ends: 2292 [2024-11-19 03:11:04,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:04,953 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 22 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:04,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1555 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:11:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2024-11-19 03:11:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2024-11-19 03:11:05,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 1634 states have (on average 1.3274173806609546) internal successors, (2169), 1660 states have internal predecessors, (2169), 496 states have call successors, (496), 162 states have call predecessors, (496), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-11-19 03:11:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3155 transitions. [2024-11-19 03:11:05,061 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3155 transitions. Word has length 39 [2024-11-19 03:11:05,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:05,062 INFO L471 AbstractCegarLoop]: Abstraction has 2292 states and 3155 transitions. [2024-11-19 03:11:05,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 03:11:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3155 transitions. [2024-11-19 03:11:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 03:11:05,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:05,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:05,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 03:11:05,264 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 [2024-11-19 03:11:05,265 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:05,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:05,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1466215333, now seen corresponding path program 1 times [2024-11-19 03:11:05,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:05,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642351531] [2024-11-19 03:11:05,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:05,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:06,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:06,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642351531] [2024-11-19 03:11:06,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642351531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:06,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012440440] [2024-11-19 03:11:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:06,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:06,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:06,246 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) [2024-11-19 03:11:06,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 03:11:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:07,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 3101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:07,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:07,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:07,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012440440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:07,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:07,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:07,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195968915] [2024-11-19 03:11:07,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:07,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:07,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:07,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:07,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:07,857 INFO L87 Difference]: Start difference. First operand 2292 states and 3155 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-19 03:11:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:08,065 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2024-11-19 03:11:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:08,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 50 [2024-11-19 03:11:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:08,091 INFO L225 Difference]: With dead ends: 2314 [2024-11-19 03:11:08,091 INFO L226 Difference]: Without dead ends: 2303 [2024-11-19 03:11:08,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:08,096 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 784 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:08,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 814 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:11:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2024-11-19 03:11:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2292. [2024-11-19 03:11:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 1634 states have (on average 1.3268053855569155) internal successors, (2168), 1660 states have internal predecessors, (2168), 496 states have call successors, (496), 162 states have call predecessors, (496), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-11-19 03:11:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3154 transitions. [2024-11-19 03:11:08,236 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3154 transitions. Word has length 50 [2024-11-19 03:11:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:08,237 INFO L471 AbstractCegarLoop]: Abstraction has 2292 states and 3154 transitions. [2024-11-19 03:11:08,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-19 03:11:08,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3154 transitions. [2024-11-19 03:11:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 03:11:08,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:08,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:08,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 03:11:08,440 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 [2024-11-19 03:11:08,441 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:08,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:08,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1523473635, now seen corresponding path program 1 times [2024-11-19 03:11:08,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903945312] [2024-11-19 03:11:08,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:08,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:09,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:09,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903945312] [2024-11-19 03:11:09,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903945312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:09,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164348734] [2024-11-19 03:11:09,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:09,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:09,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:09,475 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) [2024-11-19 03:11:09,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 03:11:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:10,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:10,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:11,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:11,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164348734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:11,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:11,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:11,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099189931] [2024-11-19 03:11:11,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:11,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:11,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:11,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:11,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:11,075 INFO L87 Difference]: Start difference. First operand 2292 states and 3154 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-19 03:11:15,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:11:15,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:15,239 INFO L93 Difference]: Finished difference Result 2294 states and 3155 transitions. [2024-11-19 03:11:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:15,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 50 [2024-11-19 03:11:15,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:15,254 INFO L225 Difference]: With dead ends: 2294 [2024-11-19 03:11:15,254 INFO L226 Difference]: Without dead ends: 2291 [2024-11-19 03:11:15,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:15,257 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 740 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:15,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 786 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:11:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-11-19 03:11:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2024-11-19 03:11:15,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1634 states have (on average 1.3261933904528764) internal successors, (2167), 1659 states have internal predecessors, (2167), 495 states have call successors, (495), 162 states have call predecessors, (495), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-11-19 03:11:15,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3152 transitions. [2024-11-19 03:11:15,382 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3152 transitions. Word has length 50 [2024-11-19 03:11:15,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:15,383 INFO L471 AbstractCegarLoop]: Abstraction has 2291 states and 3152 transitions. [2024-11-19 03:11:15,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-19 03:11:15,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3152 transitions. [2024-11-19 03:11:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-19 03:11:15,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:15,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:15,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 03:11:15,585 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 [2024-11-19 03:11:15,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:15,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:15,586 INFO L85 PathProgramCache]: Analyzing trace with hash -17244853, now seen corresponding path program 1 times [2024-11-19 03:11:15,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:15,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279844963] [2024-11-19 03:11:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:15,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:16,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:16,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279844963] [2024-11-19 03:11:16,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279844963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:16,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55043765] [2024-11-19 03:11:16,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:16,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:16,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:16,440 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) [2024-11-19 03:11:16,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 03:11:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:18,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:18,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:18,275 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:18,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55043765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:18,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:18,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:18,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584844878] [2024-11-19 03:11:18,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:18,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:18,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:18,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:18,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:18,277 INFO L87 Difference]: Start difference. First operand 2291 states and 3152 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-19 03:11:22,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:11:22,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:22,434 INFO L93 Difference]: Finished difference Result 2293 states and 3153 transitions. [2024-11-19 03:11:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:22,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 51 [2024-11-19 03:11:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:22,451 INFO L225 Difference]: With dead ends: 2293 [2024-11-19 03:11:22,451 INFO L226 Difference]: Without dead ends: 2290 [2024-11-19 03:11:22,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:22,453 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 737 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:22,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 784 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:11:22,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2024-11-19 03:11:22,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2290. [2024-11-19 03:11:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 1634 states have (on average 1.3255813953488371) internal successors, (2166), 1658 states have internal predecessors, (2166), 494 states have call successors, (494), 162 states have call predecessors, (494), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-11-19 03:11:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3150 transitions. [2024-11-19 03:11:22,577 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3150 transitions. Word has length 51 [2024-11-19 03:11:22,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:22,577 INFO L471 AbstractCegarLoop]: Abstraction has 2290 states and 3150 transitions. [2024-11-19 03:11:22,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-19 03:11:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3150 transitions. [2024-11-19 03:11:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-19 03:11:22,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:22,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:22,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 03:11:22,779 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 [2024-11-19 03:11:22,780 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:22,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash -534872858, now seen corresponding path program 1 times [2024-11-19 03:11:22,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:22,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318791255] [2024-11-19 03:11:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:22,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:23,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:23,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:23,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318791255] [2024-11-19 03:11:23,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318791255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:23,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927436190] [2024-11-19 03:11:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:23,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:23,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:23,663 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) [2024-11-19 03:11:23,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 03:11:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:25,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 3100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:25,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:25,221 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:25,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927436190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:25,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:25,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:25,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597418532] [2024-11-19 03:11:25,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:25,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:25,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:25,223 INFO L87 Difference]: Start difference. First operand 2290 states and 3150 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-19 03:11:29,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:11:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:29,374 INFO L93 Difference]: Finished difference Result 2292 states and 3151 transitions. [2024-11-19 03:11:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 52 [2024-11-19 03:11:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:29,392 INFO L225 Difference]: With dead ends: 2292 [2024-11-19 03:11:29,392 INFO L226 Difference]: Without dead ends: 2289 [2024-11-19 03:11:29,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:29,395 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 734 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:29,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 782 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:11:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2024-11-19 03:11:29,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2289. [2024-11-19 03:11:29,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1634 states have (on average 1.324969400244798) internal successors, (2165), 1657 states have internal predecessors, (2165), 493 states have call successors, (493), 162 states have call predecessors, (493), 161 states have return successors, (490), 489 states have call predecessors, (490), 490 states have call successors, (490) [2024-11-19 03:11:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3148 transitions. [2024-11-19 03:11:29,538 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3148 transitions. Word has length 52 [2024-11-19 03:11:29,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:29,539 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 3148 transitions. [2024-11-19 03:11:29,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-19 03:11:29,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3148 transitions. [2024-11-19 03:11:29,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-19 03:11:29,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:29,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:29,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 03:11:29,742 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 [2024-11-19 03:11:29,743 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:29,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash 598533038, now seen corresponding path program 1 times [2024-11-19 03:11:29,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:29,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702903317] [2024-11-19 03:11:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:29,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:30,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:30,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702903317] [2024-11-19 03:11:30,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702903317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:30,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380594848] [2024-11-19 03:11:30,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:30,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:30,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:30,605 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) [2024-11-19 03:11:30,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 03:11:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:32,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 3102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:32,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:32,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:32,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380594848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:32,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:32,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:32,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538764706] [2024-11-19 03:11:32,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:32,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:32,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:32,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:32,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:32,353 INFO L87 Difference]: Start difference. First operand 2289 states and 3148 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-19 03:11:36,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:11:36,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:36,589 INFO L93 Difference]: Finished difference Result 2790 states and 3813 transitions. [2024-11-19 03:11:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:36,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 53 [2024-11-19 03:11:36,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:36,603 INFO L225 Difference]: With dead ends: 2790 [2024-11-19 03:11:36,604 INFO L226 Difference]: Without dead ends: 2758 [2024-11-19 03:11:36,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:36,605 INFO L432 NwaCegarLoop]: 1100 mSDtfsCounter, 661 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:36,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 1495 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:11:36,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2024-11-19 03:11:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2758. [2024-11-19 03:11:36,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 1954 states have (on average 1.3147389969293757) internal successors, (2569), 1979 states have internal predecessors, (2569), 602 states have call successors, (602), 202 states have call predecessors, (602), 201 states have return successors, (601), 600 states have call predecessors, (601), 601 states have call successors, (601) [2024-11-19 03:11:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3772 transitions. [2024-11-19 03:11:36,766 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3772 transitions. Word has length 53 [2024-11-19 03:11:36,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:36,767 INFO L471 AbstractCegarLoop]: Abstraction has 2758 states and 3772 transitions. [2024-11-19 03:11:36,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-19 03:11:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3772 transitions. [2024-11-19 03:11:36,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-19 03:11:36,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:36,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:36,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 03:11:36,970 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 [2024-11-19 03:11:36,970 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:36,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:36,971 INFO L85 PathProgramCache]: Analyzing trace with hash -890061604, now seen corresponding path program 1 times [2024-11-19 03:11:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:36,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777755538] [2024-11-19 03:11:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:36,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:37,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:37,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777755538] [2024-11-19 03:11:37,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777755538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:37,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225811183] [2024-11-19 03:11:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:37,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:37,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:37,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:11:37,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 03:11:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:39,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:11:39,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 03:11:39,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:39,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225811183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:39,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:39,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:39,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971926941] [2024-11-19 03:11:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:39,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:39,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:39,517 INFO L87 Difference]: Start difference. First operand 2758 states and 3772 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:11:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:39,853 INFO L93 Difference]: Finished difference Result 7059 states and 9620 transitions. [2024-11-19 03:11:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2024-11-19 03:11:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:39,943 INFO L225 Difference]: With dead ends: 7059 [2024-11-19 03:11:39,944 INFO L226 Difference]: Without dead ends: 4304 [2024-11-19 03:11:39,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:39,957 INFO L432 NwaCegarLoop]: 743 mSDtfsCounter, 701 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:39,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 1429 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:11:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2024-11-19 03:11:40,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4301. [2024-11-19 03:11:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 3057 states have (on average 1.3117435394177297) internal successors, (4010), 3094 states have internal predecessors, (4010), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-11-19 03:11:40,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5837 transitions. [2024-11-19 03:11:40,343 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5837 transitions. Word has length 71 [2024-11-19 03:11:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:40,343 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 5837 transitions. [2024-11-19 03:11:40,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:11:40,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5837 transitions. [2024-11-19 03:11:40,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 03:11:40,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:40,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:40,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 03:11:40,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 03:11:40,558 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:40,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:40,559 INFO L85 PathProgramCache]: Analyzing trace with hash 596748283, now seen corresponding path program 1 times [2024-11-19 03:11:40,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:40,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526300135] [2024-11-19 03:11:40,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:40,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:41,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:41,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:41,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526300135] [2024-11-19 03:11:41,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526300135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:41,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812797235] [2024-11-19 03:11:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:41,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:41,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:41,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:11:41,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 03:11:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:43,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 3750 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:11:43,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 03:11:43,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:43,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812797235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:43,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:43,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:43,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718301511] [2024-11-19 03:11:43,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:43,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:43,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:43,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:43,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:43,413 INFO L87 Difference]: Start difference. First operand 4301 states and 5837 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 03:11:43,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:43,677 INFO L93 Difference]: Finished difference Result 8611 states and 11923 transitions. [2024-11-19 03:11:43,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:43,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-19 03:11:43,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:43,720 INFO L225 Difference]: With dead ends: 8611 [2024-11-19 03:11:43,721 INFO L226 Difference]: Without dead ends: 4313 [2024-11-19 03:11:43,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:43,747 INFO L432 NwaCegarLoop]: 753 mSDtfsCounter, 0 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:43,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1501 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:11:43,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-11-19 03:11:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4313. [2024-11-19 03:11:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 3069 states have (on average 1.3105246008471816) internal successors, (4022), 3106 states have internal predecessors, (4022), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-11-19 03:11:44,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 5849 transitions. [2024-11-19 03:11:44,142 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 5849 transitions. Word has length 134 [2024-11-19 03:11:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:44,143 INFO L471 AbstractCegarLoop]: Abstraction has 4313 states and 5849 transitions. [2024-11-19 03:11:44,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 03:11:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 5849 transitions. [2024-11-19 03:11:44,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 03:11:44,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:44,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:44,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 03:11:44,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 03:11:44,350 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:44,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash 317009185, now seen corresponding path program 1 times [2024-11-19 03:11:44,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:44,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643002874] [2024-11-19 03:11:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:44,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:11:45,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:45,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643002874] [2024-11-19 03:11:45,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643002874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:45,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794222294] [2024-11-19 03:11:45,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:45,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:45,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:45,281 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:11:45,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 03:11:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:47,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 3755 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:11:47,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 03:11:47,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:47,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794222294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:47,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:47,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:11:47,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989817932] [2024-11-19 03:11:47,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:47,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:11:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:47,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:11:47,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:47,100 INFO L87 Difference]: Start difference. First operand 4313 states and 5849 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 03:11:47,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:11:47,338 INFO L93 Difference]: Finished difference Result 8647 states and 11851 transitions. [2024-11-19 03:11:47,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:11:47,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-19 03:11:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:11:47,366 INFO L225 Difference]: With dead ends: 8647 [2024-11-19 03:11:47,367 INFO L226 Difference]: Without dead ends: 4337 [2024-11-19 03:11:47,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:11:47,391 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 1 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:11:47,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1497 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:11:47,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4337 states. [2024-11-19 03:11:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4337 to 4325. [2024-11-19 03:11:47,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 3081 states have (on average 1.3093151574164232) internal successors, (4034), 3118 states have internal predecessors, (4034), 914 states have call successors, (914), 330 states have call predecessors, (914), 329 states have return successors, (913), 912 states have call predecessors, (913), 913 states have call successors, (913) [2024-11-19 03:11:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 5861 transitions. [2024-11-19 03:11:47,654 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 5861 transitions. Word has length 135 [2024-11-19 03:11:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:11:47,655 INFO L471 AbstractCegarLoop]: Abstraction has 4325 states and 5861 transitions. [2024-11-19 03:11:47,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 03:11:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 5861 transitions. [2024-11-19 03:11:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-19 03:11:47,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:11:47,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:11:47,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 03:11:47,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 03:11:47,864 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:11:47,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:11:47,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1303663095, now seen corresponding path program 1 times [2024-11-19 03:11:47,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:11:47,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130005637] [2024-11-19 03:11:47,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:47,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:11:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 03:11:49,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:11:49,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130005637] [2024-11-19 03:11:49,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130005637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:11:49,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762593776] [2024-11-19 03:11:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:11:49,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:11:49,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:11:49,145 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:11:49,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 03:11:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:11:51,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 03:11:51,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:11:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 03:11:51,130 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:11:51,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762593776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:11:51,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:11:51,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 03:11:51,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867693933] [2024-11-19 03:11:51,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:11:51,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:11:51,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:11:51,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:11:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:11:51,132 INFO L87 Difference]: Start difference. First operand 4325 states and 5861 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)