./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../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-803cd42-m [2024-11-22 15:09:09,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 15:09:09,596 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 15:09:09,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 15:09:09,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 15:09:09,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 15:09:09,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 15:09:09,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 15:09:09,623 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 15:09:09,624 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 15:09:09,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 15:09:09,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 15:09:09,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 15:09:09,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 15:09:09,626 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 15:09:09,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 15:09:09,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 15:09:09,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 15:09:09,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 15:09:09,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 15:09:09,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 15:09:09,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 15:09:09,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 15:09:09,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 15:09:09,631 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 15:09:09,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 15:09:09,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 15:09:09,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 15:09:09,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 15:09:09,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:09:09,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 15:09:09,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 15:09:09,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 15:09:09,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 15:09:09,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 15:09:09,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 15:09:09,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 15:09:09,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 15:09:09,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 15:09:09,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 [2024-11-22 15:09:09,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 15:09:09,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 15:09:09,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 15:09:09,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 15:09:09,879 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 15:09:09,880 INFO L431 ainManager$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 [2024-11-22 15:09:11,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 15:09:11,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 15:09:11,374 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 [2024-11-22 15:09:11,398 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8adc9cca3/49a9c880d8eb4f63b1fce888076f1c9e/FLAG83b3a100f [2024-11-22 15:09:11,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8adc9cca3/49a9c880d8eb4f63b1fce888076f1c9e [2024-11-22 15:09:11,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 15:09:11,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 15:09:11,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 15:09:11,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 15:09:11,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 15:09:11,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:09:11" (1/1) ... [2024-11-22 15:09:11,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f534c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:11, skipping insertion in model container [2024-11-22 15:09:11,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:09:11" (1/1) ... [2024-11-22 15:09:11,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 15:09:12,216 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] [2024-11-22 15:09:12,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:09:12,351 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 15:09:12,565 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] [2024-11-22 15:09:12,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:09:12,626 INFO L204 MainTranslator]: Completed translation [2024-11-22 15:09:12,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12 WrapperNode [2024-11-22 15:09:12,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 15:09:12,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 15:09:12,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 15:09:12,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 15:09:12,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,728 INFO L138 Inliner]: procedures = 161, calls = 1531, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1863 [2024-11-22 15:09:12,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 15:09:12,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 15:09:12,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 15:09:12,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 15:09:12,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,877 INFO L175 MemorySlicer]: Split 1089 memory accesses to 22 slices as follows [2, 2, 6, 522, 5, 3, 3, 5, 37, 18, 1, 8, 24, 6, 11, 10, 10, 3, 13, 325, 3, 72]. 48 percent of accesses are in the largest equivalence class. The 793 initializations are split as follows [2, 0, 0, 512, 5, 0, 0, 5, 28, 18, 0, 4, 0, 0, 11, 10, 10, 0, 13, 172, 3, 0]. The 195 writes are split as follows [0, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 24, 6, 0, 0, 0, 2, 0, 84, 0, 72]. [2024-11-22 15:09:12,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 15:09:12,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 15:09:12,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 15:09:12,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 15:09:12,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (1/1) ... [2024-11-22 15:09:12,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:09:13,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:13,013 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) [2024-11-22 15:09:13,015 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 [2024-11-22 15:09:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-11-22 15:09:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-11-22 15:09:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2024-11-22 15:09:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2024-11-22 15:09:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-22 15:09:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-22 15:09:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-11-22 15:09:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-11-22 15:09:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-11-22 15:09:13,050 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-22 15:09:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-22 15:09:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2024-11-22 15:09:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2024-11-22 15:09:13,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 15:09:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-22 15:09:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 15:09:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 15:09:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-22 15:09:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2024-11-22 15:09:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2024-11-22 15:09:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2024-11-22 15:09:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2024-11-22 15:09:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-11-22 15:09:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-11-22 15:09:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-22 15:09:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-22 15:09:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2024-11-22 15:09:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2024-11-22 15:09:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2024-11-22 15:09:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2024-11-22 15:09:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 15:09:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-22 15:09:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-22 15:09:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-22 15:09:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2024-11-22 15:09:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2024-11-22 15:09:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2024-11-22 15:09:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-22 15:09:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-22 15:09:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 15:09:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-22 15:09:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-22 15:09:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-22 15:09:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-22 15:09:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-22 15:09:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-22 15:09:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-22 15:09:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-22 15:09:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2024-11-22 15:09:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2024-11-22 15:09:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2024-11-22 15:09:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2024-11-22 15:09:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2024-11-22 15:09:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2024-11-22 15:09:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 15:09:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 15:09:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 15:09:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 15:09:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-22 15:09:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2024-11-22 15:09:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2024-11-22 15:09:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2024-11-22 15:09:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2024-11-22 15:09:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-11-22 15:09:13,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-22 15:09:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-11-22 15:09:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-11-22 15:09:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-11-22 15:09:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-22 15:09:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-11-22 15:09:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2024-11-22 15:09:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2024-11-22 15:09:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2024-11-22 15:09:13,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 15:09:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2024-11-22 15:09:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 15:09:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-11-22 15:09:13,074 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-11-22 15:09:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2024-11-22 15:09:13,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2024-11-22 15:09:13,379 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 15:09:13,381 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 15:09:20,190 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2024-11-22 15:09:20,190 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 15:09:20,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 15:09:20,214 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-22 15:09:20,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:09:20 BoogieIcfgContainer [2024-11-22 15:09:20,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 15:09:20,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 15:09:20,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 15:09:20,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 15:09:20,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:09:11" (1/3) ... [2024-11-22 15:09:20,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36623ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:09:20, skipping insertion in model container [2024-11-22 15:09:20,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:12" (2/3) ... [2024-11-22 15:09:20,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36623ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:09:20, skipping insertion in model container [2024-11-22 15:09:20,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:09:20" (3/3) ... [2024-11-22 15:09:20,225 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-11-22 15:09:20,238 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 15:09:20,238 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 15:09:20,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 15:09:20,309 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;@5042c23a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 15:09:20,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 15:09:20,317 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) [2024-11-22 15:09:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 15:09:20,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:20,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:09:20,327 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:20,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:20,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1454029286, now seen corresponding path program 1 times [2024-11-22 15:09:20,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:20,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467219000] [2024-11-22 15:09:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:21,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:21,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467219000] [2024-11-22 15:09:21,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467219000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:21,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:09:21,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:09:21,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627983916] [2024-11-22 15:09:21,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:21,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:21,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:21,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:21,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:09:21,679 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) [2024-11-22 15:09:21,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:21,930 INFO L93 Difference]: Finished difference Result 1610 states and 2315 transitions. [2024-11-22 15:09:21,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:21,932 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 [2024-11-22 15:09:21,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:21,954 INFO L225 Difference]: With dead ends: 1610 [2024-11-22 15:09:21,954 INFO L226 Difference]: Without dead ends: 1024 [2024-11-22 15:09:21,964 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 [2024-11-22 15:09:21,968 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:09:21,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1924 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:09:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2024-11-22 15:09:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1010. [2024-11-22 15:09:22,075 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) [2024-11-22 15:09:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1400 transitions. [2024-11-22 15:09:22,086 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1400 transitions. Word has length 16 [2024-11-22 15:09:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:22,086 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1400 transitions. [2024-11-22 15:09:22,087 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) [2024-11-22 15:09:22,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1400 transitions. [2024-11-22 15:09:22,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 15:09:22,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:22,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:09:22,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 15:09:22,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:22,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:22,089 INFO L85 PathProgramCache]: Analyzing trace with hash 983832029, now seen corresponding path program 1 times [2024-11-22 15:09:22,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:22,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783370287] [2024-11-22 15:09:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:22,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:22,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:22,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783370287] [2024-11-22 15:09:22,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783370287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:22,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:09:22,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 15:09:22,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279810726] [2024-11-22 15:09:22,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:22,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:22,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:22,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:22,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:09:22,919 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) [2024-11-22 15:09:22,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:22,979 INFO L93 Difference]: Finished difference Result 2017 states and 2797 transitions. [2024-11-22 15:09:22,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:22,979 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 [2024-11-22 15:09:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:22,987 INFO L225 Difference]: With dead ends: 2017 [2024-11-22 15:09:22,988 INFO L226 Difference]: Without dead ends: 1010 [2024-11-22 15:09:22,991 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 [2024-11-22 15:09:22,992 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 [2024-11-22 15:09:22,995 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] [2024-11-22 15:09:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2024-11-22 15:09:23,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2024-11-22 15:09:23,038 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) [2024-11-22 15:09:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1398 transitions. [2024-11-22 15:09:23,045 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1398 transitions. Word has length 18 [2024-11-22 15:09:23,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:23,045 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1398 transitions. [2024-11-22 15:09:23,045 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) [2024-11-22 15:09:23,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1398 transitions. [2024-11-22 15:09:23,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 15:09:23,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:23,047 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] [2024-11-22 15:09:23,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 15:09:23,048 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:23,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash -909447033, now seen corresponding path program 1 times [2024-11-22 15:09:23,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:23,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972849424] [2024-11-22 15:09:23,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:23,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:23,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:23,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972849424] [2024-11-22 15:09:23,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972849424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:23,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:09:23,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:09:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40452758] [2024-11-22 15:09:23,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:23,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:23,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:23,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:23,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:09:23,998 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) [2024-11-22 15:09:28,040 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 [] [2024-11-22 15:09:28,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:28,141 INFO L93 Difference]: Finished difference Result 2423 states and 3344 transitions. [2024-11-22 15:09:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:28,142 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 [2024-11-22 15:09:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:28,149 INFO L225 Difference]: With dead ends: 2423 [2024-11-22 15:09:28,149 INFO L226 Difference]: Without dead ends: 1416 [2024-11-22 15:09:28,152 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 [2024-11-22 15:09:28,153 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 [2024-11-22 15:09:28,153 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] [2024-11-22 15:09:28,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-22 15:09:28,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1392. [2024-11-22 15:09:28,198 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) [2024-11-22 15:09:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1918 transitions. [2024-11-22 15:09:28,205 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1918 transitions. Word has length 22 [2024-11-22 15:09:28,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:28,206 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1918 transitions. [2024-11-22 15:09:28,206 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) [2024-11-22 15:09:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1918 transitions. [2024-11-22 15:09:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-22 15:09:28,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:28,208 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] [2024-11-22 15:09:28,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 15:09:28,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:28,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:28,210 INFO L85 PathProgramCache]: Analyzing trace with hash -428234540, now seen corresponding path program 1 times [2024-11-22 15:09:28,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:28,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165230924] [2024-11-22 15:09:28,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:28,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:28,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:28,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165230924] [2024-11-22 15:09:28,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165230924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:28,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:09:28,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:09:28,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952393950] [2024-11-22 15:09:28,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:28,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:28,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:28,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:28,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:09:28,994 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) [2024-11-22 15:09:29,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:29,092 INFO L93 Difference]: Finished difference Result 2799 states and 3861 transitions. [2024-11-22 15:09:29,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:29,092 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 [2024-11-22 15:09:29,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:29,099 INFO L225 Difference]: With dead ends: 2799 [2024-11-22 15:09:29,100 INFO L226 Difference]: Without dead ends: 1410 [2024-11-22 15:09:29,104 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 [2024-11-22 15:09:29,104 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 12 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:09:29,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1565 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:09:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-22 15:09:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1394. [2024-11-22 15:09:29,140 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) [2024-11-22 15:09:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1920 transitions. [2024-11-22 15:09:29,148 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1920 transitions. Word has length 30 [2024-11-22 15:09:29,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:29,148 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1920 transitions. [2024-11-22 15:09:29,149 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) [2024-11-22 15:09:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1920 transitions. [2024-11-22 15:09:29,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-22 15:09:29,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:29,150 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] [2024-11-22 15:09:29,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 15:09:29,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:29,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:29,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2061059013, now seen corresponding path program 1 times [2024-11-22 15:09:29,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:29,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106238745] [2024-11-22 15:09:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:29,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:30,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:30,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106238745] [2024-11-22 15:09:30,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106238745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:30,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277328669] [2024-11-22 15:09:30,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:30,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:30,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:30,034 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) [2024-11-22 15:09:30,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 15:09:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:31,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 15:09:31,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:09:31,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:09:31,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:09:31,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277328669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:31,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:09:31,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:09:31,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843436754] [2024-11-22 15:09:31,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:31,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:31,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:31,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:31,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:31,196 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) [2024-11-22 15:09:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:31,323 INFO L93 Difference]: Finished difference Result 2823 states and 3897 transitions. [2024-11-22 15:09:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:31,326 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 [2024-11-22 15:09:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:31,334 INFO L225 Difference]: With dead ends: 2823 [2024-11-22 15:09:31,334 INFO L226 Difference]: Without dead ends: 1432 [2024-11-22 15:09:31,337 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 [2024-11-22 15:09:31,338 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 [2024-11-22 15:09:31,339 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] [2024-11-22 15:09:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-22 15:09:31,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1398. [2024-11-22 15:09:31,373 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) [2024-11-22 15:09:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1924 transitions. [2024-11-22 15:09:31,386 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1924 transitions. Word has length 34 [2024-11-22 15:09:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:31,387 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 1924 transitions. [2024-11-22 15:09:31,387 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) [2024-11-22 15:09:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1924 transitions. [2024-11-22 15:09:31,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 15:09:31,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:31,388 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] [2024-11-22 15:09:31,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 15:09:31,588 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 [2024-11-22 15:09:31,589 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:31,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:31,590 INFO L85 PathProgramCache]: Analyzing trace with hash -394368894, now seen corresponding path program 1 times [2024-11-22 15:09:31,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:31,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268749849] [2024-11-22 15:09:31,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:31,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:09:32,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:32,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268749849] [2024-11-22 15:09:32,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268749849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557609900] [2024-11-22 15:09:32,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:32,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:32,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:32,436 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) [2024-11-22 15:09:32,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 15:09:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:33,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 2958 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:09:33,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:09:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 15:09:33,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:09:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557609900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:33,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:09:33,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:09:33,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184454303] [2024-11-22 15:09:33,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:33,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:33,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:33,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:33,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:33,664 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) [2024-11-22 15:09:33,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:33,786 INFO L93 Difference]: Finished difference Result 4136 states and 5684 transitions. [2024-11-22 15:09:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:33,786 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 [2024-11-22 15:09:33,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:33,800 INFO L225 Difference]: With dead ends: 4136 [2024-11-22 15:09:33,800 INFO L226 Difference]: Without dead ends: 2741 [2024-11-22 15:09:33,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:33,807 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 750 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-11-22 15:09:33,807 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] [2024-11-22 15:09:33,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2024-11-22 15:09:33,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2258. [2024-11-22 15:09:33,873 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) [2024-11-22 15:09:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 3103 transitions. [2024-11-22 15:09:33,887 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 3103 transitions. Word has length 38 [2024-11-22 15:09:33,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:33,888 INFO L471 AbstractCegarLoop]: Abstraction has 2258 states and 3103 transitions. [2024-11-22 15:09:33,888 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) [2024-11-22 15:09:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 3103 transitions. [2024-11-22 15:09:33,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 15:09:33,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:33,889 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] [2024-11-22 15:09:33,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 15:09:34,089 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 [2024-11-22 15:09:34,089 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:34,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:34,090 INFO L85 PathProgramCache]: Analyzing trace with hash 789422399, now seen corresponding path program 1 times [2024-11-22 15:09:34,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:34,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674913716] [2024-11-22 15:09:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:34,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:34,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:34,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674913716] [2024-11-22 15:09:34,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674913716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:34,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369748610] [2024-11-22 15:09:34,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:34,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:34,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:34,903 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) [2024-11-22 15:09:34,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 15:09:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:36,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:09:36,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:09:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:09:36,146 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:09:36,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369748610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:36,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:09:36,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:09:36,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123925305] [2024-11-22 15:09:36,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:36,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:36,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:36,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:36,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:36,148 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) [2024-11-22 15:09:36,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:36,222 INFO L93 Difference]: Finished difference Result 4547 states and 6259 transitions. [2024-11-22 15:09:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:36,223 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 [2024-11-22 15:09:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:36,238 INFO L225 Difference]: With dead ends: 4547 [2024-11-22 15:09:36,238 INFO L226 Difference]: Without dead ends: 2292 [2024-11-22 15:09:36,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:36,247 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 [2024-11-22 15:09:36,247 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] [2024-11-22 15:09:36,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2024-11-22 15:09:36,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2024-11-22 15:09:36,304 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) [2024-11-22 15:09:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3155 transitions. [2024-11-22 15:09:36,314 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3155 transitions. Word has length 39 [2024-11-22 15:09:36,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:36,314 INFO L471 AbstractCegarLoop]: Abstraction has 2292 states and 3155 transitions. [2024-11-22 15:09:36,315 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) [2024-11-22 15:09:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3155 transitions. [2024-11-22 15:09:36,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-22 15:09:36,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:36,317 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] [2024-11-22 15:09:36,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 15:09:36,518 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 [2024-11-22 15:09:36,518 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:36,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1466215333, now seen corresponding path program 1 times [2024-11-22 15:09:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:36,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574044266] [2024-11-22 15:09:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:36,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:37,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:37,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574044266] [2024-11-22 15:09:37,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574044266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:37,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143992279] [2024-11-22 15:09:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:37,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:37,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:37,275 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) [2024-11-22 15:09:37,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 15:09:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:38,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 3101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:09:38,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:09:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:09:38,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:09:38,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143992279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:38,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:09:38,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:09:38,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555171352] [2024-11-22 15:09:38,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:38,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:38,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:38,462 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) [2024-11-22 15:09:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:38,559 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2024-11-22 15:09:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:38,560 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 [2024-11-22 15:09:38,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:38,572 INFO L225 Difference]: With dead ends: 2314 [2024-11-22 15:09:38,573 INFO L226 Difference]: Without dead ends: 2303 [2024-11-22 15:09:38,574 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 [2024-11-22 15:09:38,575 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 784 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-11-22 15:09:38,575 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] [2024-11-22 15:09:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2024-11-22 15:09:38,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2292. [2024-11-22 15:09:38,645 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) [2024-11-22 15:09:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3154 transitions. [2024-11-22 15:09:38,656 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3154 transitions. Word has length 50 [2024-11-22 15:09:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:38,656 INFO L471 AbstractCegarLoop]: Abstraction has 2292 states and 3154 transitions. [2024-11-22 15:09:38,656 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) [2024-11-22 15:09:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3154 transitions. [2024-11-22 15:09:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-22 15:09:38,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:38,658 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] [2024-11-22 15:09:38,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 15:09:38,858 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 [2024-11-22 15:09:38,859 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:38,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1523473635, now seen corresponding path program 1 times [2024-11-22 15:09:38,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:38,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357677234] [2024-11-22 15:09:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:38,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:39,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:39,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357677234] [2024-11-22 15:09:39,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357677234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:39,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724105257] [2024-11-22 15:09:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:39,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:39,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:39,753 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) [2024-11-22 15:09:39,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 15:09:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:40,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:09:40,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:09:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:09:41,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:09:41,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724105257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:41,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:09:41,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:09:41,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559523321] [2024-11-22 15:09:41,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:41,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:41,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:41,026 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) [2024-11-22 15:09:45,066 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 [] [2024-11-22 15:09:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:45,160 INFO L93 Difference]: Finished difference Result 2294 states and 3155 transitions. [2024-11-22 15:09:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:45,160 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 [2024-11-22 15:09:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:45,172 INFO L225 Difference]: With dead ends: 2294 [2024-11-22 15:09:45,173 INFO L226 Difference]: Without dead ends: 2291 [2024-11-22 15:09:45,174 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 [2024-11-22 15:09:45,175 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 [2024-11-22 15:09:45,176 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] [2024-11-22 15:09:45,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-11-22 15:09:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2024-11-22 15:09:45,275 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) [2024-11-22 15:09:45,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3152 transitions. [2024-11-22 15:09:45,284 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3152 transitions. Word has length 50 [2024-11-22 15:09:45,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:45,286 INFO L471 AbstractCegarLoop]: Abstraction has 2291 states and 3152 transitions. [2024-11-22 15:09:45,286 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) [2024-11-22 15:09:45,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3152 transitions. [2024-11-22 15:09:45,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-22 15:09:45,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:45,287 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] [2024-11-22 15:09:45,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 15:09:45,487 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 [2024-11-22 15:09:45,488 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:45,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:45,489 INFO L85 PathProgramCache]: Analyzing trace with hash -17244853, now seen corresponding path program 1 times [2024-11-22 15:09:45,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:45,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040728027] [2024-11-22 15:09:45,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:45,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:46,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:46,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040728027] [2024-11-22 15:09:46,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040728027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:46,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67061462] [2024-11-22 15:09:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:46,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:46,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:46,255 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) [2024-11-22 15:09:46,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 15:09:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:47,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:09:47,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:09:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:09:47,481 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:09:47,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67061462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:47,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:09:47,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:09:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733860034] [2024-11-22 15:09:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:47,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:47,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:47,482 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) [2024-11-22 15:09:51,516 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 [] [2024-11-22 15:09:51,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:51,663 INFO L93 Difference]: Finished difference Result 2293 states and 3153 transitions. [2024-11-22 15:09:51,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:51,663 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 [2024-11-22 15:09:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:51,676 INFO L225 Difference]: With dead ends: 2293 [2024-11-22 15:09:51,676 INFO L226 Difference]: Without dead ends: 2290 [2024-11-22 15:09:51,677 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 [2024-11-22 15:09:51,678 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 [2024-11-22 15:09:51,678 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] [2024-11-22 15:09:51,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2024-11-22 15:09:51,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2290. [2024-11-22 15:09:51,805 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) [2024-11-22 15:09:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3150 transitions. [2024-11-22 15:09:51,822 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3150 transitions. Word has length 51 [2024-11-22 15:09:51,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:51,823 INFO L471 AbstractCegarLoop]: Abstraction has 2290 states and 3150 transitions. [2024-11-22 15:09:51,823 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) [2024-11-22 15:09:51,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3150 transitions. [2024-11-22 15:09:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-22 15:09:51,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:51,824 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] [2024-11-22 15:09:51,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 15:09:52,024 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 [2024-11-22 15:09:52,025 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:52,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:52,025 INFO L85 PathProgramCache]: Analyzing trace with hash -534872858, now seen corresponding path program 1 times [2024-11-22 15:09:52,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:52,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584707710] [2024-11-22 15:09:52,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:52,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:52,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:52,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584707710] [2024-11-22 15:09:52,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584707710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:52,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388960781] [2024-11-22 15:09:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:52,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:52,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:52,829 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) [2024-11-22 15:09:52,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 15:09:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:53,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 3100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:09:54,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:09:54,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:09:54,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:09:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388960781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:09:54,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:09:54,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:09:54,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035010985] [2024-11-22 15:09:54,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:09:54,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:09:54,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:09:54,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:09:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:09:54,161 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) [2024-11-22 15:09:58,195 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 [] [2024-11-22 15:09:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:09:58,262 INFO L93 Difference]: Finished difference Result 2292 states and 3151 transitions. [2024-11-22 15:09:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:09:58,263 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 [2024-11-22 15:09:58,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:09:58,272 INFO L225 Difference]: With dead ends: 2292 [2024-11-22 15:09:58,272 INFO L226 Difference]: Without dead ends: 2289 [2024-11-22 15:09:58,273 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 [2024-11-22 15:09:58,273 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, 4.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:09:58,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 782 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-22 15:09:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2024-11-22 15:09:58,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2289. [2024-11-22 15:09:58,383 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) [2024-11-22 15:09:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3148 transitions. [2024-11-22 15:09:58,393 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3148 transitions. Word has length 52 [2024-11-22 15:09:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:09:58,394 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 3148 transitions. [2024-11-22 15:09:58,394 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) [2024-11-22 15:09:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3148 transitions. [2024-11-22 15:09:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 15:09:58,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:09:58,395 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] [2024-11-22 15:09:58,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 15:09:58,595 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 [2024-11-22 15:09:58,595 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:09:58,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:09:58,596 INFO L85 PathProgramCache]: Analyzing trace with hash 598533038, now seen corresponding path program 1 times [2024-11-22 15:09:58,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:09:58,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518644715] [2024-11-22 15:09:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:58,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:09:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:09:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:09:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:09:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518644715] [2024-11-22 15:09:59,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518644715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:09:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204935582] [2024-11-22 15:09:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:09:59,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:09:59,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:09:59,282 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) [2024-11-22 15:09:59,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 15:10:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:00,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 3102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:10:00,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:10:00,652 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:10:00,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204935582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:00,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:10:00,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:10:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410491143] [2024-11-22 15:10:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:00,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:10:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:10:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:10:00,654 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) [2024-11-22 15:10:04,688 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 [] [2024-11-22 15:10:04,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:04,814 INFO L93 Difference]: Finished difference Result 2790 states and 3813 transitions. [2024-11-22 15:10:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:10:04,814 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 [2024-11-22 15:10:04,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:04,826 INFO L225 Difference]: With dead ends: 2790 [2024-11-22 15:10:04,826 INFO L226 Difference]: Without dead ends: 2758 [2024-11-22 15:10:04,828 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 [2024-11-22 15:10:04,829 INFO L432 NwaCegarLoop]: 1100 mSDtfsCounter, 661 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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 [2024-11-22 15:10:04,829 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] [2024-11-22 15:10:04,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2024-11-22 15:10:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2758. [2024-11-22 15:10:04,938 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) [2024-11-22 15:10:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3772 transitions. [2024-11-22 15:10:04,948 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3772 transitions. Word has length 53 [2024-11-22 15:10:04,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:04,948 INFO L471 AbstractCegarLoop]: Abstraction has 2758 states and 3772 transitions. [2024-11-22 15:10:04,949 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) [2024-11-22 15:10:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3772 transitions. [2024-11-22 15:10:04,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 15:10:04,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:04,950 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] [2024-11-22 15:10:04,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 15:10:05,154 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 [2024-11-22 15:10:05,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:05,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash -890061604, now seen corresponding path program 1 times [2024-11-22 15:10:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:05,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877263704] [2024-11-22 15:10:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:05,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:10:05,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877263704] [2024-11-22 15:10:05,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877263704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:10:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354970093] [2024-11-22 15:10:05,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:05,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:05,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:10:05,903 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) [2024-11-22 15:10:05,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 15:10:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:07,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 15:10:07,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 15:10:07,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:10:07,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354970093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:07,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:10:07,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:10:07,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848840847] [2024-11-22 15:10:07,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:07,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:10:07,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:07,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:10:07,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:10:07,256 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) [2024-11-22 15:10:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:07,504 INFO L93 Difference]: Finished difference Result 7059 states and 9620 transitions. [2024-11-22 15:10:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:10:07,504 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 [2024-11-22 15:10:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:07,524 INFO L225 Difference]: With dead ends: 7059 [2024-11-22 15:10:07,524 INFO L226 Difference]: Without dead ends: 4304 [2024-11-22 15:10:07,534 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 [2024-11-22 15:10:07,534 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 [2024-11-22 15:10:07,535 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] [2024-11-22 15:10:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2024-11-22 15:10:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4301. [2024-11-22 15:10:07,689 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) [2024-11-22 15:10:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5837 transitions. [2024-11-22 15:10:07,706 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5837 transitions. Word has length 71 [2024-11-22 15:10:07,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:07,706 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 5837 transitions. [2024-11-22 15:10:07,706 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) [2024-11-22 15:10:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5837 transitions. [2024-11-22 15:10:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 15:10:07,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:07,716 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] [2024-11-22 15:10:07,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 15:10:07,917 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 [2024-11-22 15:10:07,917 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:07,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:07,919 INFO L85 PathProgramCache]: Analyzing trace with hash 596748283, now seen corresponding path program 1 times [2024-11-22 15:10:07,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:07,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825272329] [2024-11-22 15:10:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:07,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:08,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:10:08,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:08,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825272329] [2024-11-22 15:10:08,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825272329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:10:08,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84066870] [2024-11-22 15:10:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:08,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:08,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:10:08,712 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) [2024-11-22 15:10:08,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 15:10:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:10,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 3750 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 15:10:10,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:10,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 15:10:10,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:10:10,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84066870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:10,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:10:10,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:10:10,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523165109] [2024-11-22 15:10:10,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:10,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:10:10,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:10:10,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:10:10,164 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) [2024-11-22 15:10:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:10,310 INFO L93 Difference]: Finished difference Result 8611 states and 11923 transitions. [2024-11-22 15:10:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:10:10,310 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 [2024-11-22 15:10:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:10,333 INFO L225 Difference]: With dead ends: 8611 [2024-11-22 15:10:10,334 INFO L226 Difference]: Without dead ends: 4313 [2024-11-22 15:10:10,350 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 [2024-11-22 15:10:10,350 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 [2024-11-22 15:10:10,350 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] [2024-11-22 15:10:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-11-22 15:10:10,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4313. [2024-11-22 15:10:10,574 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) [2024-11-22 15:10:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 5849 transitions. [2024-11-22 15:10:10,590 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 5849 transitions. Word has length 134 [2024-11-22 15:10:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:10,590 INFO L471 AbstractCegarLoop]: Abstraction has 4313 states and 5849 transitions. [2024-11-22 15:10:10,590 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) [2024-11-22 15:10:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 5849 transitions. [2024-11-22 15:10:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 15:10:10,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:10,595 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] [2024-11-22 15:10:10,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 15:10:10,795 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 [2024-11-22 15:10:10,798 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:10,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 317009185, now seen corresponding path program 1 times [2024-11-22 15:10:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:10,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044394266] [2024-11-22 15:10:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:11,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:10:11,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:11,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044394266] [2024-11-22 15:10:11,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044394266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:10:11,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769710966] [2024-11-22 15:10:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:11,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:11,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:10:11,602 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) [2024-11-22 15:10:11,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 15:10:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:13,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 3755 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:10:13,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 15:10:13,058 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:10:13,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769710966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:13,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:10:13,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 15:10:13,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532163038] [2024-11-22 15:10:13,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:13,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:10:13,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:13,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:10:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:10:13,059 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) [2024-11-22 15:10:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:13,340 INFO L93 Difference]: Finished difference Result 8647 states and 11851 transitions. [2024-11-22 15:10:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:10:13,341 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 [2024-11-22 15:10:13,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:13,373 INFO L225 Difference]: With dead ends: 8647 [2024-11-22 15:10:13,373 INFO L226 Difference]: Without dead ends: 4337 [2024-11-22 15:10:13,391 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 [2024-11-22 15:10:13,392 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 [2024-11-22 15:10:13,392 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] [2024-11-22 15:10:13,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4337 states. [2024-11-22 15:10:13,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4337 to 4325. [2024-11-22 15:10:13,627 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) [2024-11-22 15:10:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 5861 transitions. [2024-11-22 15:10:13,644 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 5861 transitions. Word has length 135 [2024-11-22 15:10:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:13,645 INFO L471 AbstractCegarLoop]: Abstraction has 4325 states and 5861 transitions. [2024-11-22 15:10:13,645 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) [2024-11-22 15:10:13,645 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 5861 transitions. [2024-11-22 15:10:13,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-22 15:10:13,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:13,652 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] [2024-11-22 15:10:13,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-22 15:10:13,853 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 [2024-11-22 15:10:13,854 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:13,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1303663095, now seen corresponding path program 1 times [2024-11-22 15:10:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:13,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456472972] [2024-11-22 15:10:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:13,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-22 15:10:14,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:14,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456472972] [2024-11-22 15:10:14,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456472972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:10:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982365822] [2024-11-22 15:10:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:14,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:14,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:10:14,720 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) [2024-11-22 15:10:14,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 15:10:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:16,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 15:10:16,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 15:10:16,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:10:16,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982365822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:16,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:10:16,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 15:10:16,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442293483] [2024-11-22 15:10:16,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:16,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:10:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:10:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 15:10:16,297 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) [2024-11-22 15:10:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:16,525 INFO L93 Difference]: Finished difference Result 8671 states and 11983 transitions. [2024-11-22 15:10:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:10:16,526 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 190 [2024-11-22 15:10:16,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:16,541 INFO L225 Difference]: With dead ends: 8671 [2024-11-22 15:10:16,541 INFO L226 Difference]: Without dead ends: 4349 [2024-11-22 15:10:16,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 15:10:16,555 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 0 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:10:16,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2247 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:10:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2024-11-22 15:10:16,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 4349. [2024-11-22 15:10:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4349 states, 3105 states have (on average 1.3069243156199677) internal successors, (4058), 3142 states have internal predecessors, (4058), 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) [2024-11-22 15:10:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4349 states to 4349 states and 5885 transitions. [2024-11-22 15:10:16,709 INFO L78 Accepts]: Start accepts. Automaton has 4349 states and 5885 transitions. Word has length 190 [2024-11-22 15:10:16,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:16,710 INFO L471 AbstractCegarLoop]: Abstraction has 4349 states and 5885 transitions. [2024-11-22 15:10:16,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-22 15:10:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4349 states and 5885 transitions. [2024-11-22 15:10:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-22 15:10:16,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:16,716 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, 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] [2024-11-22 15:10:16,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 15:10:16,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 15:10:16,916 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:16,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:16,917 INFO L85 PathProgramCache]: Analyzing trace with hash -69431389, now seen corresponding path program 1 times [2024-11-22 15:10:16,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:16,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918576982] [2024-11-22 15:10:16,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:16,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 15:10:17,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:17,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918576982] [2024-11-22 15:10:17,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918576982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:10:17,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873616101] [2024-11-22 15:10:17,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:17,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:17,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:10:17,754 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:10:17,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 15:10:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:19,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 4172 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:10:19,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:19,361 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 15:10:19,362 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 15:10:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 15:10:19,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873616101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 15:10:19,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 15:10:19,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 15:10:19,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148057186] [2024-11-22 15:10:19,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 15:10:19,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 15:10:19,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:19,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 15:10:19,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 15:10:19,921 INFO L87 Difference]: Start difference. First operand 4349 states and 5885 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-22 15:10:20,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:20,255 INFO L93 Difference]: Finished difference Result 8836 states and 11986 transitions. [2024-11-22 15:10:20,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 15:10:20,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 192 [2024-11-22 15:10:20,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:20,276 INFO L225 Difference]: With dead ends: 8836 [2024-11-22 15:10:20,276 INFO L226 Difference]: Without dead ends: 4490 [2024-11-22 15:10:20,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 15:10:20,285 INFO L432 NwaCegarLoop]: 749 mSDtfsCounter, 69 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:10:20,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2257 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:10:20,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2024-11-22 15:10:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 4490. [2024-11-22 15:10:20,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4490 states, 3246 states have (on average 1.3120764017252002) internal successors, (4259), 3283 states have internal predecessors, (4259), 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) [2024-11-22 15:10:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4490 states to 4490 states and 6086 transitions. [2024-11-22 15:10:20,457 INFO L78 Accepts]: Start accepts. Automaton has 4490 states and 6086 transitions. Word has length 192 [2024-11-22 15:10:20,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:20,458 INFO L471 AbstractCegarLoop]: Abstraction has 4490 states and 6086 transitions. [2024-11-22 15:10:20,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-22 15:10:20,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4490 states and 6086 transitions. [2024-11-22 15:10:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 15:10:20,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:20,465 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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] [2024-11-22 15:10:20,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 15:10:20,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 15:10:20,667 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:20,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:20,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1040247320, now seen corresponding path program 2 times [2024-11-22 15:10:20,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:20,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757324338] [2024-11-22 15:10:20,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 15:10:20,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:21,263 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 15:10:21,263 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 15:10:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 15:10:21,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:21,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757324338] [2024-11-22 15:10:21,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757324338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:21,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:10:21,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 15:10:21,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128940946] [2024-11-22 15:10:21,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:21,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 15:10:21,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:21,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 15:10:21,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:10:21,528 INFO L87 Difference]: Start difference. First operand 4490 states and 6086 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 15:10:21,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:21,823 INFO L93 Difference]: Finished difference Result 9025 states and 12421 transitions. [2024-11-22 15:10:21,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 15:10:21,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 204 [2024-11-22 15:10:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:21,865 INFO L225 Difference]: With dead ends: 9025 [2024-11-22 15:10:21,865 INFO L226 Difference]: Without dead ends: 4538 [2024-11-22 15:10:21,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:10:21,881 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 0 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:10:21,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3004 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:10:21,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2024-11-22 15:10:22,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 4538. [2024-11-22 15:10:22,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 3282 states have (on average 1.3086532602071907) internal successors, (4295), 3319 states have internal predecessors, (4295), 914 states have call successors, (914), 330 states have call predecessors, (914), 341 states have return successors, (961), 924 states have call predecessors, (961), 913 states have call successors, (961) [2024-11-22 15:10:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6170 transitions. [2024-11-22 15:10:22,121 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6170 transitions. Word has length 204 [2024-11-22 15:10:22,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:22,122 INFO L471 AbstractCegarLoop]: Abstraction has 4538 states and 6170 transitions. [2024-11-22 15:10:22,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 15:10:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6170 transitions. [2024-11-22 15:10:22,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-22 15:10:22,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:22,129 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 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] [2024-11-22 15:10:22,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 15:10:22,130 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:22,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1754665870, now seen corresponding path program 1 times [2024-11-22 15:10:22,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:22,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8586790] [2024-11-22 15:10:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:22,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-22 15:10:23,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:23,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8586790] [2024-11-22 15:10:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8586790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:23,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:10:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 15:10:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100368580] [2024-11-22 15:10:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:23,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:10:23,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:23,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:10:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 15:10:23,043 INFO L87 Difference]: Start difference. First operand 4538 states and 6170 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 15:10:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:23,202 INFO L93 Difference]: Finished difference Result 9083 states and 12352 transitions. [2024-11-22 15:10:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:10:23,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2024-11-22 15:10:23,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:23,223 INFO L225 Difference]: With dead ends: 9083 [2024-11-22 15:10:23,223 INFO L226 Difference]: Without dead ends: 4548 [2024-11-22 15:10:23,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 15:10:23,234 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 0 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:10:23,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2250 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:10:23,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4548 states. [2024-11-22 15:10:23,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4548 to 4548. [2024-11-22 15:10:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 3292 states have (on average 1.30771567436209) internal successors, (4305), 3329 states have internal predecessors, (4305), 914 states have call successors, (914), 330 states have call predecessors, (914), 341 states have return successors, (961), 924 states have call predecessors, (961), 913 states have call successors, (961) [2024-11-22 15:10:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6180 transitions. [2024-11-22 15:10:23,421 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 6180 transitions. Word has length 270 [2024-11-22 15:10:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:23,422 INFO L471 AbstractCegarLoop]: Abstraction has 4548 states and 6180 transitions. [2024-11-22 15:10:23,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 15:10:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 6180 transitions. [2024-11-22 15:10:23,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-22 15:10:23,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:23,429 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 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] [2024-11-22 15:10:23,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 15:10:23,429 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:23,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1620385268, now seen corresponding path program 1 times [2024-11-22 15:10:23,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642289702] [2024-11-22 15:10:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:23,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-22 15:10:24,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:24,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642289702] [2024-11-22 15:10:24,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642289702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:10:24,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085980191] [2024-11-22 15:10:24,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:24,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:24,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:10:24,355 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:10:24,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 15:10:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:26,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 4546 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 15:10:26,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 15:10:26,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:10:26,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085980191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:26,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:10:26,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 15:10:26,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284514] [2024-11-22 15:10:26,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:26,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:10:26,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:26,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:10:26,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 15:10:26,135 INFO L87 Difference]: Start difference. First operand 4548 states and 6180 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-22 15:10:26,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:26,310 INFO L93 Difference]: Finished difference Result 9189 states and 12741 transitions. [2024-11-22 15:10:26,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:10:26,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 273 [2024-11-22 15:10:26,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:26,335 INFO L225 Difference]: With dead ends: 9189 [2024-11-22 15:10:26,335 INFO L226 Difference]: Without dead ends: 4644 [2024-11-22 15:10:26,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 15:10:26,350 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 0 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:10:26,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2260 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:10:26,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2024-11-22 15:10:26,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 4644. [2024-11-22 15:10:26,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4644 states, 3352 states have (on average 1.3057875894988067) internal successors, (4377), 3389 states have internal predecessors, (4377), 950 states have call successors, (950), 330 states have call predecessors, (950), 341 states have return successors, (997), 960 states have call predecessors, (997), 949 states have call successors, (997) [2024-11-22 15:10:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4644 states to 4644 states and 6324 transitions. [2024-11-22 15:10:26,632 INFO L78 Accepts]: Start accepts. Automaton has 4644 states and 6324 transitions. Word has length 273 [2024-11-22 15:10:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:26,633 INFO L471 AbstractCegarLoop]: Abstraction has 4644 states and 6324 transitions. [2024-11-22 15:10:26,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-22 15:10:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4644 states and 6324 transitions. [2024-11-22 15:10:26,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-22 15:10:26,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:26,640 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 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] [2024-11-22 15:10:26,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 15:10:26,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:26,840 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:26,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:26,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1698269126, now seen corresponding path program 1 times [2024-11-22 15:10:26,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:26,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17050659] [2024-11-22 15:10:26,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:26,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-22 15:10:27,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:27,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17050659] [2024-11-22 15:10:27,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17050659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:10:27,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499168102] [2024-11-22 15:10:27,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:27,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:27,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:10:27,696 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:10:27,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 15:10:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:29,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 4552 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:10:29,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:10:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-22 15:10:29,762 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 15:10:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-22 15:10:30,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499168102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 15:10:30,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 15:10:30,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 15:10:30,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104805940] [2024-11-22 15:10:30,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 15:10:30,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 15:10:30,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 15:10:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 15:10:30,711 INFO L87 Difference]: Start difference. First operand 4644 states and 6324 transitions. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2024-11-22 15:10:31,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:10:31,121 INFO L93 Difference]: Finished difference Result 9576 states and 13104 transitions. [2024-11-22 15:10:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 15:10:31,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) Word has length 275 [2024-11-22 15:10:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:10:31,149 INFO L225 Difference]: With dead ends: 9576 [2024-11-22 15:10:31,149 INFO L226 Difference]: Without dead ends: 4935 [2024-11-22 15:10:31,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 15:10:31,163 INFO L432 NwaCegarLoop]: 749 mSDtfsCounter, 88 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:10:31,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2967 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:10:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2024-11-22 15:10:31,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4935. [2024-11-22 15:10:31,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 3568 states have (on average 1.304091928251121) internal successors, (4653), 3605 states have internal predecessors, (4653), 1025 states have call successors, (1025), 330 states have call predecessors, (1025), 341 states have return successors, (1072), 1035 states have call predecessors, (1072), 1024 states have call successors, (1072) [2024-11-22 15:10:31,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6750 transitions. [2024-11-22 15:10:31,369 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6750 transitions. Word has length 275 [2024-11-22 15:10:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:10:31,369 INFO L471 AbstractCegarLoop]: Abstraction has 4935 states and 6750 transitions. [2024-11-22 15:10:31,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 5 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2024-11-22 15:10:31,370 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6750 transitions. [2024-11-22 15:10:31,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-22 15:10:31,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:10:31,378 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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, 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] [2024-11-22 15:10:31,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 15:10:31,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:10:31,579 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:10:31,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:10:31,580 INFO L85 PathProgramCache]: Analyzing trace with hash 889838641, now seen corresponding path program 1 times [2024-11-22 15:10:31,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:10:31,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136909435] [2024-11-22 15:10:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:10:31,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:10:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:10:32,844 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-22 15:10:32,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:10:32,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136909435] [2024-11-22 15:10:32,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136909435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:10:32,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:10:32,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 15:10:32,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730501756] [2024-11-22 15:10:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:10:32,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:10:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:10:32,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:10:32,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 15:10:32,847 INFO L87 Difference]: Start difference. First operand 4935 states and 6750 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)