./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC --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 0.3.0-dev-6497de0 [2024-11-23 22:58:27,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:58:27,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 22:58:27,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:58:27,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:58:27,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:58:27,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:58:27,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:58:27,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:58:27,278 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:58:27,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:58:27,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:58:27,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:58:27,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:58:27,280 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:58:27,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:58:27,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:58:27,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:58:27,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:58:27,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:58:27,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:58:27,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:58:27,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:58:27,282 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:58:27,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:58:27,282 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:58:27,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:58:27,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:58:27,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:58:27,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:27,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:58:27,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:58:27,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:58:27,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:58:27,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:27,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:58:27,285 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-23 22:58:27,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:58:27,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:58:27,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:58:27,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:58:27,654 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:58:27,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-11-23 22:58:30,914 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/data/e776feb9b/26a56a2032db4f6aa1ecc19258ec36b7/FLAGafbd74cfd [2024-11-23 22:58:31,635 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:58:31,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-11-23 22:58:31,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/data/e776feb9b/26a56a2032db4f6aa1ecc19258ec36b7/FLAGafbd74cfd [2024-11-23 22:58:31,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/data/e776feb9b/26a56a2032db4f6aa1ecc19258ec36b7 [2024-11-23 22:58:31,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:58:31,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:58:31,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:58:31,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:58:31,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:58:31,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:31" (1/1) ... [2024-11-23 22:58:32,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c449e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:32, skipping insertion in model container [2024-11-23 22:58:32,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:58:31" (1/1) ... [2024-11-23 22:58:32,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:58:33,308 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2024-11-23 22:58:33,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:58:33,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:58:33,808 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2024-11-23 22:58:33,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:58:34,026 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:58:34,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34 WrapperNode [2024-11-23 22:58:34,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:58:34,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:58:34,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:58:34,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:58:34,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,234 INFO L138 Inliner]: procedures = 161, calls = 1531, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1843 [2024-11-23 22:58:34,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:58:34,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:58:34,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:58:34,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:58:34,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,417 INFO L175 MemorySlicer]: Split 1089 memory accesses to 22 slices as follows [2, 3, 72, 5, 6, 522, 2, 3, 5, 37, 11, 8, 24, 10, 10, 3, 3, 13, 325, 6, 18, 1]. 48 percent of accesses are in the largest equivalence class. The 793 initializations are split as follows [2, 3, 0, 5, 0, 512, 0, 0, 5, 28, 11, 4, 0, 10, 10, 0, 0, 13, 172, 0, 18, 0]. The 195 writes are split as follows [0, 0, 72, 0, 6, 0, 2, 2, 0, 0, 0, 0, 24, 0, 0, 0, 0, 0, 84, 5, 0, 0]. [2024-11-23 22:58:34,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,566 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:58:34,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:58:34,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:58:34,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:58:34,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (1/1) ... [2024-11-23 22:58:34,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:58:34,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:58:34,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:58:34,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:58:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-11-23 22:58:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-11-23 22:58:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2024-11-23 22:58:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2024-11-23 22:58:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-23 22:58:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-23 22:58:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-11-23 22:58:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-11-23 22:58:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-11-23 22:58:34,769 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-11-23 22:58:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 22:58:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 22:58:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 22:58:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 22:58:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 22:58:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 22:58:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 22:58:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-23 22:58:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-23 22:58:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-23 22:58:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-23 22:58:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-23 22:58:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-23 22:58:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-23 22:58:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-23 22:58:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-23 22:58:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-23 22:58:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-23 22:58:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-23 22:58:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-23 22:58:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-23 22:58:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-11-23 22:58:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2024-11-23 22:58:34,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2024-11-23 22:58:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2024-11-23 22:58:34,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2024-11-23 22:58:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 22:58:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 22:58:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-23 22:58:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-23 22:58:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2024-11-23 22:58:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2024-11-23 22:58:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2024-11-23 22:58:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2024-11-23 22:58:34,785 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-11-23 22:58:34,785 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-11-23 22:58:34,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 22:58:34,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 22:58:34,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2024-11-23 22:58:34,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2024-11-23 22:58:34,785 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2024-11-23 22:58:34,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2024-11-23 22:58:34,786 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-23 22:58:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-23 22:58:34,787 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 22:58:34,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2024-11-23 22:58:34,787 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2024-11-23 22:58:34,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2024-11-23 22:58:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2024-11-23 22:58:34,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-23 22:58:34,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-23 22:58:34,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 22:58:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 22:58:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-23 22:58:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-23 22:58:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-23 22:58:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-23 22:58:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-23 22:58:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2024-11-23 22:58:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2024-11-23 22:58:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2024-11-23 22:58:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2024-11-23 22:58:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2024-11-23 22:58:34,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2024-11-23 22:58:34,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 22:58:34,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 22:58:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2024-11-23 22:58:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2024-11-23 22:58:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2024-11-23 22:58:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2024-11-23 22:58:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-11-23 22:58:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-11-23 22:58:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 22:58:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 22:58:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 22:58:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 22:58:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 22:58:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 22:58:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 22:58:34,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 22:58:34,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 22:58:34,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 22:58:34,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 22:58:34,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 22:58:34,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-23 22:58:34,805 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-11-23 22:58:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-11-23 22:58:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-23 22:58:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-11-23 22:58:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2024-11-23 22:58:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2024-11-23 22:58:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2024-11-23 22:58:34,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 22:58:34,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2024-11-23 22:58:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:58:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:58:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-11-23 22:58:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-11-23 22:58:34,808 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2024-11-23 22:58:34,809 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2024-11-23 22:58:35,535 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:58:35,539 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:58:44,970 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2024-11-23 22:58:44,970 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:58:45,000 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:58:45,001 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 22:58:45,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:45 BoogieIcfgContainer [2024-11-23 22:58:45,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:58:45,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:58:45,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:58:45,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:58:45,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:58:31" (1/3) ... [2024-11-23 22:58:45,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaba7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:45, skipping insertion in model container [2024-11-23 22:58:45,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:58:34" (2/3) ... [2024-11-23 22:58:45,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaba7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:58:45, skipping insertion in model container [2024-11-23 22:58:45,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:45" (3/3) ... [2024-11-23 22:58:45,019 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2024-11-23 22:58:45,041 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:58:45,045 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i that has 39 procedures, 579 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 22:58:45,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:58:45,174 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;@386f2b7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:58:45,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:58:45,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 579 states, 413 states have (on average 1.3510895883777239) internal successors, (558), 427 states have internal predecessors, (558), 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) [2024-11-23 22:58:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-23 22:58:45,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:45,196 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:45,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:45,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1213140984, now seen corresponding path program 1 times [2024-11-23 22:58:45,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:45,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347340453] [2024-11-23 22:58:45,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:45,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:58:48,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:58:48,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347340453] [2024-11-23 22:58:48,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347340453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:48,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:58:48,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:58:48,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019596268] [2024-11-23 22:58:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:48,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:58:48,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:58:48,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:58:48,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:48,077 INFO L87 Difference]: Start difference. First operand has 579 states, 413 states have (on average 1.3510895883777239) internal successors, (558), 427 states have internal predecessors, (558), 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) [2024-11-23 22:58:48,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:58:48,554 INFO L93 Difference]: Finished difference Result 1604 states and 2309 transitions. [2024-11-23 22:58:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:58:48,561 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 [2024-11-23 22:58:48,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:58:48,600 INFO L225 Difference]: With dead ends: 1604 [2024-11-23 22:58:48,601 INFO L226 Difference]: Without dead ends: 1020 [2024-11-23 22:58:48,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:48,615 INFO L435 NwaCegarLoop]: 1156 mSDtfsCounter, 626 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:58:48,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1918 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:58:48,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-23 22:58:48,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1006. [2024-11-23 22:58:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 720 states have (on average 1.3388888888888888) internal successors, (964), 733 states have internal predecessors, (964), 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) [2024-11-23 22:58:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1396 transitions. [2024-11-23 22:58:48,865 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1396 transitions. Word has length 16 [2024-11-23 22:58:48,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:58:48,868 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1396 transitions. [2024-11-23 22:58:48,868 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) [2024-11-23 22:58:48,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1396 transitions. [2024-11-23 22:58:48,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-23 22:58:48,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:48,870 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:48,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:58:48,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:48,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:48,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1899123615, now seen corresponding path program 1 times [2024-11-23 22:58:48,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:48,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939653233] [2024-11-23 22:58:48,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:48,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:58:50,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:58:50,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939653233] [2024-11-23 22:58:50,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939653233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:50,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:58:50,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:58:50,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309915027] [2024-11-23 22:58:50,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:50,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:58:50,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:58:50,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:58:50,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:50,680 INFO L87 Difference]: Start difference. First operand 1006 states and 1396 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) [2024-11-23 22:58:50,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:58:50,815 INFO L93 Difference]: Finished difference Result 2009 states and 2789 transitions. [2024-11-23 22:58:50,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:58:50,816 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 [2024-11-23 22:58:50,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:58:50,837 INFO L225 Difference]: With dead ends: 2009 [2024-11-23 22:58:50,837 INFO L226 Difference]: Without dead ends: 1006 [2024-11-23 22:58:50,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:50,844 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 777 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 786 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 [2024-11-23 22:58:50,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 786 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:58:50,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2024-11-23 22:58:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 1006. [2024-11-23 22:58:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 720 states have (on average 1.336111111111111) internal successors, (962), 733 states have internal predecessors, (962), 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) [2024-11-23 22:58:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1394 transitions. [2024-11-23 22:58:50,935 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1394 transitions. Word has length 18 [2024-11-23 22:58:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:58:50,936 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1394 transitions. [2024-11-23 22:58:50,936 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) [2024-11-23 22:58:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1394 transitions. [2024-11-23 22:58:50,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-23 22:58:50,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:50,937 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:50,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:58:50,938 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:50,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:50,938 INFO L85 PathProgramCache]: Analyzing trace with hash 203011561, now seen corresponding path program 1 times [2024-11-23 22:58:50,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:50,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872854166] [2024-11-23 22:58:50,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:50,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:58:52,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:58:52,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872854166] [2024-11-23 22:58:52,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872854166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:52,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:58:52,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:58:52,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011332564] [2024-11-23 22:58:52,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:52,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:58:52,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:58:52,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:58:52,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:52,876 INFO L87 Difference]: Start difference. First operand 1006 states and 1394 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) [2024-11-23 22:58:56,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:58:57,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:58:57,187 INFO L93 Difference]: Finished difference Result 2413 states and 3334 transitions. [2024-11-23 22:58:57,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:58:57,187 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 [2024-11-23 22:58:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:58:57,203 INFO L225 Difference]: With dead ends: 2413 [2024-11-23 22:58:57,205 INFO L226 Difference]: Without dead ends: 1410 [2024-11-23 22:58:57,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:57,213 INFO L435 NwaCegarLoop]: 1272 mSDtfsCounter, 743 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:58:57,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1817 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 22:58:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-23 22:58:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1386. [2024-11-23 22:58:57,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 987 states have (on average 1.3353596757852078) internal successors, (1318), 1004 states have internal predecessors, (1318), 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) [2024-11-23 22:58:57,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1912 transitions. [2024-11-23 22:58:57,355 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1912 transitions. Word has length 22 [2024-11-23 22:58:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:58:57,357 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 1912 transitions. [2024-11-23 22:58:57,357 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) [2024-11-23 22:58:57,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1912 transitions. [2024-11-23 22:58:57,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-23 22:58:57,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:57,359 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:57,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:58:57,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:57,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:57,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2031583946, now seen corresponding path program 1 times [2024-11-23 22:58:57,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:57,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406618330] [2024-11-23 22:58:57,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:57,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:58:59,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:58:59,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406618330] [2024-11-23 22:58:59,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406618330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:59,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:58:59,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:58:59,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226035644] [2024-11-23 22:58:59,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:59,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:58:59,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:58:59,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:58:59,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:59,021 INFO L87 Difference]: Start difference. First operand 1386 states and 1912 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) [2024-11-23 22:58:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:58:59,254 INFO L93 Difference]: Finished difference Result 2787 states and 3849 transitions. [2024-11-23 22:58:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:58:59,255 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 [2024-11-23 22:58:59,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:58:59,267 INFO L225 Difference]: With dead ends: 2787 [2024-11-23 22:58:59,268 INFO L226 Difference]: Without dead ends: 1404 [2024-11-23 22:58:59,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:58:59,277 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 12 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:58:59,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1561 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:58:59,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-11-23 22:58:59,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1388. [2024-11-23 22:58:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 989 states have (on average 1.3346814964610718) internal successors, (1320), 1006 states have internal predecessors, (1320), 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) [2024-11-23 22:58:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1914 transitions. [2024-11-23 22:58:59,388 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1914 transitions. Word has length 30 [2024-11-23 22:58:59,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:58:59,388 INFO L471 AbstractCegarLoop]: Abstraction has 1388 states and 1914 transitions. [2024-11-23 22:58:59,389 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) [2024-11-23 22:58:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1914 transitions. [2024-11-23 22:58:59,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-23 22:58:59,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:59,393 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:59,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:58:59,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:59,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:59,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1970569245, now seen corresponding path program 1 times [2024-11-23 22:58:59,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:59,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399245124] [2024-11-23 22:58:59,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:59,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:00,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:00,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399245124] [2024-11-23 22:59:00,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399245124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:00,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497459727] [2024-11-23 22:59:00,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:00,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:00,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:00,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:00,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:59:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:03,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 2935 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:59:03,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:03,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:03,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497459727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:03,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:03,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:03,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284091931] [2024-11-23 22:59:03,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:03,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:03,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:03,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:03,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:03,304 INFO L87 Difference]: Start difference. First operand 1388 states and 1914 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) [2024-11-23 22:59:03,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:03,517 INFO L93 Difference]: Finished difference Result 2811 states and 3885 transitions. [2024-11-23 22:59:03,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:03,518 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 [2024-11-23 22:59:03,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:03,533 INFO L225 Difference]: With dead ends: 2811 [2024-11-23 22:59:03,533 INFO L226 Difference]: Without dead ends: 1426 [2024-11-23 22:59:03,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:03,542 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 16 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:03,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1578 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:59:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-11-23 22:59:03,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1392. [2024-11-23 22:59:03,621 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) [2024-11-23 22:59:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1918 transitions. [2024-11-23 22:59:03,640 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1918 transitions. Word has length 34 [2024-11-23 22:59:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:03,640 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1918 transitions. [2024-11-23 22:59:03,641 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) [2024-11-23 22:59:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1918 transitions. [2024-11-23 22:59:03,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-23 22:59:03,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:03,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:03,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:59:03,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:03,844 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:03,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1299821596, now seen corresponding path program 1 times [2024-11-23 22:59:03,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:03,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469965448] [2024-11-23 22:59:03,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:03,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:05,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:05,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469965448] [2024-11-23 22:59:05,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469965448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:05,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213725352] [2024-11-23 22:59:05,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:05,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:05,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:05,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:05,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:59:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:07,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:59:07,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 22:59:07,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:07,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213725352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:07,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:07,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:07,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559733148] [2024-11-23 22:59:07,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:07,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:07,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:07,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:07,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:07,524 INFO L87 Difference]: Start difference. First operand 1392 states and 1918 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) [2024-11-23 22:59:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:07,766 INFO L93 Difference]: Finished difference Result 4118 states and 5666 transitions. [2024-11-23 22:59:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:07,767 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 [2024-11-23 22:59:07,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:07,790 INFO L225 Difference]: With dead ends: 4118 [2024-11-23 22:59:07,791 INFO L226 Difference]: Without dead ends: 2729 [2024-11-23 22:59:07,798 INFO L434 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 [2024-11-23 22:59:07,799 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 748 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1552 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 [2024-11-23 22:59:07,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1552 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:59:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2024-11-23 22:59:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2248. [2024-11-23 22:59:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2248 states, 1598 states have (on average 1.3285356695869837) internal successors, (2123), 1624 states have internal predecessors, (2123), 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) [2024-11-23 22:59:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 3093 transitions. [2024-11-23 22:59:07,962 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 3093 transitions. Word has length 38 [2024-11-23 22:59:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:07,962 INFO L471 AbstractCegarLoop]: Abstraction has 2248 states and 3093 transitions. [2024-11-23 22:59:07,962 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) [2024-11-23 22:59:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 3093 transitions. [2024-11-23 22:59:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-23 22:59:07,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:07,964 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:07,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:08,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:08,164 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:08,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:08,165 INFO L85 PathProgramCache]: Analyzing trace with hash -507814465, now seen corresponding path program 1 times [2024-11-23 22:59:08,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:08,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776215022] [2024-11-23 22:59:08,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:08,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:09,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:09,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776215022] [2024-11-23 22:59:09,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776215022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:09,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910025876] [2024-11-23 22:59:09,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:09,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:09,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:09,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:59:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:11,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 3006 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:59:11,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:11,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:11,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910025876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:11,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:11,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:11,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984916579] [2024-11-23 22:59:11,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:11,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:11,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:11,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:11,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:11,974 INFO L87 Difference]: Start difference. First operand 2248 states and 3093 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) [2024-11-23 22:59:12,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:12,155 INFO L93 Difference]: Finished difference Result 4527 states and 6239 transitions. [2024-11-23 22:59:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:12,156 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 [2024-11-23 22:59:12,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:12,180 INFO L225 Difference]: With dead ends: 4527 [2024-11-23 22:59:12,180 INFO L226 Difference]: Without dead ends: 2282 [2024-11-23 22:59:12,191 INFO L434 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 [2024-11-23 22:59:12,193 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 22 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1551 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 [2024-11-23 22:59:12,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1551 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:59:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2024-11-23 22:59:12,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2282. [2024-11-23 22:59:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1624 states have (on average 1.3294334975369457) internal successors, (2159), 1650 states have internal predecessors, (2159), 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) [2024-11-23 22:59:12,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3145 transitions. [2024-11-23 22:59:12,355 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3145 transitions. Word has length 39 [2024-11-23 22:59:12,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:12,356 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 3145 transitions. [2024-11-23 22:59:12,356 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) [2024-11-23 22:59:12,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3145 transitions. [2024-11-23 22:59:12,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 22:59:12,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:12,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:12,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:12,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:12,559 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:12,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:12,560 INFO L85 PathProgramCache]: Analyzing trace with hash -210547193, now seen corresponding path program 1 times [2024-11-23 22:59:12,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:12,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604421868] [2024-11-23 22:59:12,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:12,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:14,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604421868] [2024-11-23 22:59:14,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604421868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889106442] [2024-11-23 22:59:14,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:14,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:14,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:14,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:14,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:59:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:16,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 3097 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:59:16,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:16,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:16,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889106442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:16,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:16,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:16,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142047532] [2024-11-23 22:59:16,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:16,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:16,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:16,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:16,571 INFO L87 Difference]: Start difference. First operand 2282 states and 3145 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) [2024-11-23 22:59:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:16,771 INFO L93 Difference]: Finished difference Result 2304 states and 3171 transitions. [2024-11-23 22:59:16,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:16,772 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 [2024-11-23 22:59:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:16,793 INFO L225 Difference]: With dead ends: 2304 [2024-11-23 22:59:16,794 INFO L226 Difference]: Without dead ends: 2293 [2024-11-23 22:59:16,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:16,797 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 782 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 812 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 [2024-11-23 22:59:16,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 812 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:59:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2024-11-23 22:59:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2282. [2024-11-23 22:59:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1624 states have (on average 1.3288177339901477) internal successors, (2158), 1650 states have internal predecessors, (2158), 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) [2024-11-23 22:59:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3144 transitions. [2024-11-23 22:59:16,976 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3144 transitions. Word has length 50 [2024-11-23 22:59:16,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:16,977 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 3144 transitions. [2024-11-23 22:59:16,977 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) [2024-11-23 22:59:16,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3144 transitions. [2024-11-23 22:59:16,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 22:59:16,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:16,980 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:17,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:17,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:17,181 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:17,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash -153288891, now seen corresponding path program 1 times [2024-11-23 22:59:17,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:17,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281672147] [2024-11-23 22:59:17,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:18,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281672147] [2024-11-23 22:59:18,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281672147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632393472] [2024-11-23 22:59:18,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:18,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:18,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:18,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:18,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:59:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:20,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 3092 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:59:20,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:21,000 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:21,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632393472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:21,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:21,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776721273] [2024-11-23 22:59:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:21,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:21,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:21,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:21,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:21,002 INFO L87 Difference]: Start difference. First operand 2282 states and 3144 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) [2024-11-23 22:59:25,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:59:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:25,207 INFO L93 Difference]: Finished difference Result 2284 states and 3145 transitions. [2024-11-23 22:59:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:25,208 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 [2024-11-23 22:59:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:25,224 INFO L225 Difference]: With dead ends: 2284 [2024-11-23 22:59:25,224 INFO L226 Difference]: Without dead ends: 2281 [2024-11-23 22:59:25,226 INFO L434 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 [2024-11-23 22:59:25,227 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 738 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 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 [2024-11-23 22:59:25,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 784 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 22:59:25,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2024-11-23 22:59:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2281. [2024-11-23 22:59:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 1624 states have (on average 1.3282019704433496) internal successors, (2157), 1649 states have internal predecessors, (2157), 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) [2024-11-23 22:59:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3142 transitions. [2024-11-23 22:59:25,411 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3142 transitions. Word has length 50 [2024-11-23 22:59:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:25,412 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3142 transitions. [2024-11-23 22:59:25,412 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) [2024-11-23 22:59:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3142 transitions. [2024-11-23 22:59:25,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 22:59:25,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:25,416 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:25,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:25,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-23 22:59:25,617 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:25,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:25,618 INFO L85 PathProgramCache]: Analyzing trace with hash -457275669, now seen corresponding path program 1 times [2024-11-23 22:59:25,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:25,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204992707] [2024-11-23 22:59:25,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:25,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:27,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:27,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204992707] [2024-11-23 22:59:27,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204992707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:27,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165167107] [2024-11-23 22:59:27,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:27,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:27,349 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:27,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 22:59:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:29,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 3094 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:59:29,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:29,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:29,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165167107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:29,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:29,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:29,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214610231] [2024-11-23 22:59:29,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:29,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:29,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:29,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:29,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:29,604 INFO L87 Difference]: Start difference. First operand 2281 states and 3142 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) [2024-11-23 22:59:33,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:59:33,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:33,805 INFO L93 Difference]: Finished difference Result 2283 states and 3143 transitions. [2024-11-23 22:59:33,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:33,805 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 [2024-11-23 22:59:33,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:33,822 INFO L225 Difference]: With dead ends: 2283 [2024-11-23 22:59:33,822 INFO L226 Difference]: Without dead ends: 2280 [2024-11-23 22:59:33,824 INFO L434 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 [2024-11-23 22:59:33,825 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 735 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:33,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 782 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 22:59:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2024-11-23 22:59:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 2280. [2024-11-23 22:59:33,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2280 states, 1624 states have (on average 1.3275862068965518) internal successors, (2156), 1648 states have internal predecessors, (2156), 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) [2024-11-23 22:59:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3140 transitions. [2024-11-23 22:59:34,003 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3140 transitions. Word has length 51 [2024-11-23 22:59:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:34,003 INFO L471 AbstractCegarLoop]: Abstraction has 2280 states and 3140 transitions. [2024-11-23 22:59:34,004 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) [2024-11-23 22:59:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3140 transitions. [2024-11-23 22:59:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-23 22:59:34,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:34,006 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:34,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 22:59:34,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 22:59:34,207 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:34,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1290926328, now seen corresponding path program 1 times [2024-11-23 22:59:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073811387] [2024-11-23 22:59:34,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:34,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:35,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:35,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073811387] [2024-11-23 22:59:35,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073811387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944081536] [2024-11-23 22:59:35,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:35,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:35,290 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:35,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 22:59:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:37,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:59:37,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:37,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:37,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944081536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:37,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:37,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:37,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024701230] [2024-11-23 22:59:37,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:37,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:37,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:37,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:37,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:37,631 INFO L87 Difference]: Start difference. First operand 2280 states and 3140 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) [2024-11-23 22:59:41,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:59:41,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:41,835 INFO L93 Difference]: Finished difference Result 2282 states and 3141 transitions. [2024-11-23 22:59:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:41,836 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 [2024-11-23 22:59:41,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:41,852 INFO L225 Difference]: With dead ends: 2282 [2024-11-23 22:59:41,852 INFO L226 Difference]: Without dead ends: 2279 [2024-11-23 22:59:41,854 INFO L434 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 [2024-11-23 22:59:41,855 INFO L435 NwaCegarLoop]: 780 mSDtfsCounter, 732 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 780 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 [2024-11-23 22:59:41,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 780 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 22:59:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2024-11-23 22:59:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2279. [2024-11-23 22:59:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1624 states have (on average 1.3269704433497538) internal successors, (2155), 1647 states have internal predecessors, (2155), 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) [2024-11-23 22:59:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3138 transitions. [2024-11-23 22:59:42,057 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3138 transitions. Word has length 52 [2024-11-23 22:59:42,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:42,059 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 3138 transitions. [2024-11-23 22:59:42,059 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) [2024-11-23 22:59:42,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3138 transitions. [2024-11-23 22:59:42,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-23 22:59:42,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:42,060 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:42,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 22:59:42,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 22:59:42,262 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:42,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:42,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1364288114, now seen corresponding path program 1 times [2024-11-23 22:59:42,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650292563] [2024-11-23 22:59:42,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650292563] [2024-11-23 22:59:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650292563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513187491] [2024-11-23 22:59:43,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:43,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:43,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:43,419 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:43,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 22:59:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:45,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:59:45,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:45,826 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513187491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:45,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:45,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400994712] [2024-11-23 22:59:45,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:45,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:45,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:45,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:45,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:45,827 INFO L87 Difference]: Start difference. First operand 2279 states and 3138 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) [2024-11-23 22:59:49,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:59:50,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:50,094 INFO L93 Difference]: Finished difference Result 2776 states and 3799 transitions. [2024-11-23 22:59:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:50,095 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 [2024-11-23 22:59:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:50,112 INFO L225 Difference]: With dead ends: 2776 [2024-11-23 22:59:50,112 INFO L226 Difference]: Without dead ends: 2744 [2024-11-23 22:59:50,114 INFO L434 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 [2024-11-23 22:59:50,115 INFO L435 NwaCegarLoop]: 1096 mSDtfsCounter, 659 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1489 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 [2024-11-23 22:59:50,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1489 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 22:59:50,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2024-11-23 22:59:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2744. [2024-11-23 22:59:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 1940 states have (on average 1.3170103092783505) internal successors, (2555), 1965 states have internal predecessors, (2555), 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) [2024-11-23 22:59:50,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3758 transitions. [2024-11-23 22:59:50,355 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3758 transitions. Word has length 53 [2024-11-23 22:59:50,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:50,355 INFO L471 AbstractCegarLoop]: Abstraction has 2744 states and 3758 transitions. [2024-11-23 22:59:50,357 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) [2024-11-23 22:59:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3758 transitions. [2024-11-23 22:59:50,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-23 22:59:50,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:50,359 INFO L218 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] [2024-11-23 22:59:50,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 22:59:50,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 22:59:50,560 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:50,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:50,561 INFO L85 PathProgramCache]: Analyzing trace with hash -980287044, now seen corresponding path program 1 times [2024-11-23 22:59:50,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:50,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5604558] [2024-11-23 22:59:50,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:50,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:52,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:52,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5604558] [2024-11-23 22:59:52,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5604558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:52,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153732055] [2024-11-23 22:59:52,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:52,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:52,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:52,125 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:52,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 22:59:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:54,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:59:54,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 22:59:54,393 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:54,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153732055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:54,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:54,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:54,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646914726] [2024-11-23 22:59:54,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:54,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:54,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:54,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:54,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:54,395 INFO L87 Difference]: Start difference. First operand 2744 states and 3758 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) [2024-11-23 22:59:54,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:54,873 INFO L93 Difference]: Finished difference Result 7021 states and 9582 transitions. [2024-11-23 22:59:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:54,874 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 [2024-11-23 22:59:54,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:54,908 INFO L225 Difference]: With dead ends: 7021 [2024-11-23 22:59:54,908 INFO L226 Difference]: Without dead ends: 4280 [2024-11-23 22:59:54,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:54,923 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 699 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:54,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1425 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:59:54,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2024-11-23 22:59:55,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4277. [2024-11-23 22:59:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 3033 states have (on average 1.3142103527860205) internal successors, (3986), 3070 states have internal predecessors, (3986), 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) [2024-11-23 22:59:55,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 5813 transitions. [2024-11-23 22:59:55,280 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 5813 transitions. Word has length 71 [2024-11-23 22:59:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:55,280 INFO L471 AbstractCegarLoop]: Abstraction has 4277 states and 5813 transitions. [2024-11-23 22:59:55,280 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) [2024-11-23 22:59:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 5813 transitions. [2024-11-23 22:59:55,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-23 22:59:55,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:55,290 INFO L218 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] [2024-11-23 22:59:55,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 22:59:55,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:55,491 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:55,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:55,492 INFO L85 PathProgramCache]: Analyzing trace with hash -79038474, now seen corresponding path program 1 times [2024-11-23 22:59:55,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:55,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098718316] [2024-11-23 22:59:55,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:55,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:59:57,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:57,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098718316] [2024-11-23 22:59:57,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098718316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:59:57,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432950800] [2024-11-23 22:59:57,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:57,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:59:57,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:57,145 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:59:57,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 22:59:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:59,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 3739 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:59:59,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:59:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 22:59:59,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:59:59,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432950800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:59,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:59:59,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:59:59,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620912673] [2024-11-23 22:59:59,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:59,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:59:59,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:59,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:59:59,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:59:59,549 INFO L87 Difference]: Start difference. First operand 4277 states and 5813 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) [2024-11-23 22:59:59,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:59,898 INFO L93 Difference]: Finished difference Result 8563 states and 11875 transitions. [2024-11-23 22:59:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:59:59,899 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 [2024-11-23 22:59:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:59,927 INFO L225 Difference]: With dead ends: 8563 [2024-11-23 22:59:59,927 INFO L226 Difference]: Without dead ends: 4289 [2024-11-23 22:59:59,945 INFO L434 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 [2024-11-23 22:59:59,945 INFO L435 NwaCegarLoop]: 751 mSDtfsCounter, 0 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1497 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 [2024-11-23 22:59:59,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1497 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:59:59,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2024-11-23 23:00:00,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4289. [2024-11-23 23:00:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 3045 states have (on average 1.3129720853858784) internal successors, (3998), 3082 states have internal predecessors, (3998), 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) [2024-11-23 23:00:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 5825 transitions. [2024-11-23 23:00:00,304 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 5825 transitions. Word has length 134 [2024-11-23 23:00:00,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:00,305 INFO L471 AbstractCegarLoop]: Abstraction has 4289 states and 5825 transitions. [2024-11-23 23:00:00,305 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) [2024-11-23 23:00:00,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 5825 transitions. [2024-11-23 23:00:00,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-23 23:00:00,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:00,312 INFO L218 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] [2024-11-23 23:00:00,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:00:00,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:00,514 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:00,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1585674216, now seen corresponding path program 1 times [2024-11-23 23:00:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:00,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108623688] [2024-11-23 23:00:00,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:00:01,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:01,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108623688] [2024-11-23 23:00:01,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108623688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:01,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366113062] [2024-11-23 23:00:01,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:01,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:01,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:01,740 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:01,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:00:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:04,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 3744 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:00:04,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:00:04,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:00:04,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366113062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:04,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:00:04,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 23:00:04,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960100959] [2024-11-23 23:00:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:04,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:04,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:04,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:04,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:04,325 INFO L87 Difference]: Start difference. First operand 4289 states and 5825 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) [2024-11-23 23:00:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:04,669 INFO L93 Difference]: Finished difference Result 8599 states and 11803 transitions. [2024-11-23 23:00:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:04,670 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 [2024-11-23 23:00:04,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:04,700 INFO L225 Difference]: With dead ends: 8599 [2024-11-23 23:00:04,700 INFO L226 Difference]: Without dead ends: 4313 [2024-11-23 23:00:04,719 INFO L434 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 [2024-11-23 23:00:04,719 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 1 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1493 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 [2024-11-23 23:00:04,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1493 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-11-23 23:00:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4301. [2024-11-23 23:00:05,035 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) [2024-11-23 23:00:05,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5837 transitions. [2024-11-23 23:00:05,061 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5837 transitions. Word has length 135 [2024-11-23 23:00:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:05,061 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 5837 transitions. [2024-11-23 23:00:05,061 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) [2024-11-23 23:00:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5837 transitions. [2024-11-23 23:00:05,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-23 23:00:05,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:05,071 INFO L218 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] [2024-11-23 23:00:05,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-23 23:00:05,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:05,272 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:05,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1139922103, now seen corresponding path program 1 times [2024-11-23 23:00:05,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:05,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794995413] [2024-11-23 23:00:05,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:05,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-23 23:00:06,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:06,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794995413] [2024-11-23 23:00:06,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794995413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:06,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726052962] [2024-11-23 23:00:06,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:06,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:06,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:06,917 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:06,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:00:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:09,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 4158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:00:09,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:00:09,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:00:09,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726052962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:09,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:00:09,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 23:00:09,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158779297] [2024-11-23 23:00:09,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:09,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:00:09,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:09,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:00:09,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:09,973 INFO L87 Difference]: Start difference. First operand 4301 states and 5837 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) [2024-11-23 23:00:10,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:10,346 INFO L93 Difference]: Finished difference Result 8623 states and 11935 transitions. [2024-11-23 23:00:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:00:10,347 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 [2024-11-23 23:00:10,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:10,380 INFO L225 Difference]: With dead ends: 8623 [2024-11-23 23:00:10,380 INFO L226 Difference]: Without dead ends: 4325 [2024-11-23 23:00:10,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:10,405 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 0 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2241 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 [2024-11-23 23:00:10,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2241 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:10,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2024-11-23 23:00:10,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4325. [2024-11-23 23:00:10,719 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) [2024-11-23 23:00:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 5861 transitions. [2024-11-23 23:00:10,743 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 5861 transitions. Word has length 190 [2024-11-23 23:00:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:10,744 INFO L471 AbstractCegarLoop]: Abstraction has 4325 states and 5861 transitions. [2024-11-23 23:00:10,744 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) [2024-11-23 23:00:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 5861 transitions. [2024-11-23 23:00:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 23:00:10,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:10,756 INFO L218 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] [2024-11-23 23:00:10,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 23:00:10,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 23:00:10,957 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:10,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:10,958 INFO L85 PathProgramCache]: Analyzing trace with hash -145077883, now seen corresponding path program 1 times [2024-11-23 23:00:10,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:10,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738478471] [2024-11-23 23:00:10,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:10,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 23:00:12,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:12,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738478471] [2024-11-23 23:00:12,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738478471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:12,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191917015] [2024-11-23 23:00:12,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:12,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:12,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:12,626 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:12,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:00:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:15,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:00:15,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 23:00:15,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:00:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 23:00:16,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191917015] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:00:16,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:00:16,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-23 23:00:16,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385723469] [2024-11-23 23:00:16,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:00:16,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:00:16,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:16,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:00:16,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:16,538 INFO L87 Difference]: Start difference. First operand 4325 states and 5861 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) [2024-11-23 23:00:16,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:16,972 INFO L93 Difference]: Finished difference Result 8788 states and 11938 transitions. [2024-11-23 23:00:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:16,972 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 [2024-11-23 23:00:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:17,001 INFO L225 Difference]: With dead ends: 8788 [2024-11-23 23:00:17,001 INFO L226 Difference]: Without dead ends: 4466 [2024-11-23 23:00:17,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:17,016 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 78 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:17,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1507 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:00:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2024-11-23 23:00:17,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4466. [2024-11-23 23:00:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 3222 states have (on average 1.314400993171943) internal successors, (4235), 3259 states have internal predecessors, (4235), 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) [2024-11-23 23:00:17,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6062 transitions. [2024-11-23 23:00:17,346 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 6062 transitions. Word has length 192 [2024-11-23 23:00:17,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:17,346 INFO L471 AbstractCegarLoop]: Abstraction has 4466 states and 6062 transitions. [2024-11-23 23:00:17,347 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) [2024-11-23 23:00:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 6062 transitions. [2024-11-23 23:00:17,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:00:17,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:17,357 INFO L218 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] [2024-11-23 23:00:17,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-23 23:00:17,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:17,558 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:17,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1643867526, now seen corresponding path program 2 times [2024-11-23 23:00:17,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:17,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566540890] [2024-11-23 23:00:17,559 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:00:17,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:18,816 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:00:18,817 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:00:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-23 23:00:19,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566540890] [2024-11-23 23:00:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566540890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:19,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:19,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:00:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615228452] [2024-11-23 23:00:19,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:19,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:00:19,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:19,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:00:19,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:19,208 INFO L87 Difference]: Start difference. First operand 4466 states and 6062 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) [2024-11-23 23:00:19,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:19,540 INFO L93 Difference]: Finished difference Result 8977 states and 12373 transitions. [2024-11-23 23:00:19,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:19,540 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 [2024-11-23 23:00:19,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:19,585 INFO L225 Difference]: With dead ends: 8977 [2024-11-23 23:00:19,585 INFO L226 Difference]: Without dead ends: 4514 [2024-11-23 23:00:19,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:19,603 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 0 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2996 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 [2024-11-23 23:00:19,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2996 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:19,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4514 states. [2024-11-23 23:00:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4514 to 4514. [2024-11-23 23:00:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4514 states, 3258 states have (on average 1.310926949048496) internal successors, (4271), 3295 states have internal predecessors, (4271), 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) [2024-11-23 23:00:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4514 states to 4514 states and 6146 transitions. [2024-11-23 23:00:20,017 INFO L78 Accepts]: Start accepts. Automaton has 4514 states and 6146 transitions. Word has length 204 [2024-11-23 23:00:20,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:20,020 INFO L471 AbstractCegarLoop]: Abstraction has 4514 states and 6146 transitions. [2024-11-23 23:00:20,020 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) [2024-11-23 23:00:20,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4514 states and 6146 transitions. [2024-11-23 23:00:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-23 23:00:20,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:20,034 INFO L218 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] [2024-11-23 23:00:20,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:00:20,035 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:20,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:20,036 INFO L85 PathProgramCache]: Analyzing trace with hash 97425388, now seen corresponding path program 1 times [2024-11-23 23:00:20,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:20,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539424875] [2024-11-23 23:00:20,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:20,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-23 23:00:21,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:21,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539424875] [2024-11-23 23:00:21,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539424875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:21,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:21,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:00:21,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912420383] [2024-11-23 23:00:21,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:21,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:00:21,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:21,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:00:21,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:00:21,605 INFO L87 Difference]: Start difference. First operand 4514 states and 6146 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) [2024-11-23 23:00:21,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:21,962 INFO L93 Difference]: Finished difference Result 9035 states and 12304 transitions. [2024-11-23 23:00:21,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:00:21,963 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 [2024-11-23 23:00:21,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:22,001 INFO L225 Difference]: With dead ends: 9035 [2024-11-23 23:00:22,001 INFO L226 Difference]: Without dead ends: 4524 [2024-11-23 23:00:22,016 INFO L434 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 [2024-11-23 23:00:22,017 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 0 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2244 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 [2024-11-23 23:00:22,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2244 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:22,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4524 states. [2024-11-23 23:00:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4524 to 4524. [2024-11-23 23:00:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 3268 states have (on average 1.3099755201958385) internal successors, (4281), 3305 states have internal predecessors, (4281), 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) [2024-11-23 23:00:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 6156 transitions. [2024-11-23 23:00:22,420 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 6156 transitions. Word has length 270 [2024-11-23 23:00:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:22,420 INFO L471 AbstractCegarLoop]: Abstraction has 4524 states and 6156 transitions. [2024-11-23 23:00:22,421 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) [2024-11-23 23:00:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 6156 transitions. [2024-11-23 23:00:22,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-23 23:00:22,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:22,432 INFO L218 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] [2024-11-23 23:00:22,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:00:22,433 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:22,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:22,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1122798484, now seen corresponding path program 1 times [2024-11-23 23:00:22,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:22,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103664581] [2024-11-23 23:00:22,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:22,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-23 23:00:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:24,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103664581] [2024-11-23 23:00:24,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103664581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:24,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241433980] [2024-11-23 23:00:24,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:24,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:24,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:24,382 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:24,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 23:00:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:27,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 4524 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:00:27,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 23:00:27,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:00:27,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241433980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:27,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:00:27,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 23:00:27,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099312348] [2024-11-23 23:00:27,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:27,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:00:27,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:27,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:00:27,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:27,449 INFO L87 Difference]: Start difference. First operand 4524 states and 6156 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) [2024-11-23 23:00:27,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:27,814 INFO L93 Difference]: Finished difference Result 9141 states and 12693 transitions. [2024-11-23 23:00:27,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:00:27,815 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 [2024-11-23 23:00:27,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:27,851 INFO L225 Difference]: With dead ends: 9141 [2024-11-23 23:00:27,851 INFO L226 Difference]: Without dead ends: 4620 [2024-11-23 23:00:27,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:00:27,875 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 0 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:27,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2254 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4620 states. [2024-11-23 23:00:28,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 4620. [2024-11-23 23:00:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4620 states, 3328 states have (on average 1.3079927884615385) internal successors, (4353), 3365 states have internal predecessors, (4353), 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) [2024-11-23 23:00:28,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 6300 transitions. [2024-11-23 23:00:28,245 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 6300 transitions. Word has length 273 [2024-11-23 23:00:28,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:28,246 INFO L471 AbstractCegarLoop]: Abstraction has 4620 states and 6300 transitions. [2024-11-23 23:00:28,247 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) [2024-11-23 23:00:28,247 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 6300 transitions. [2024-11-23 23:00:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-23 23:00:28,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:28,260 INFO L218 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] [2024-11-23 23:00:28,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-23 23:00:28,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-23 23:00:28,461 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:28,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:28,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1109756262, now seen corresponding path program 1 times [2024-11-23 23:00:28,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:28,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752337612] [2024-11-23 23:00:28,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:28,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-23 23:00:30,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:30,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752337612] [2024-11-23 23:00:30,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752337612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:30,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506407837] [2024-11-23 23:00:30,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:30,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:30,270 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:30,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 23:00:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:33,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 4530 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:00:33,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-23 23:00:33,405 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:00:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2024-11-23 23:00:35,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506407837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:00:35,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:00:35,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-23 23:00:35,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191324799] [2024-11-23 23:00:35,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:00:35,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:00:35,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:35,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:00:35,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:35,434 INFO L87 Difference]: Start difference. First operand 4620 states and 6300 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) [2024-11-23 23:00:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:36,125 INFO L93 Difference]: Finished difference Result 9528 states and 13056 transitions. [2024-11-23 23:00:36,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:00:36,126 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 [2024-11-23 23:00:36,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:36,161 INFO L225 Difference]: With dead ends: 9528 [2024-11-23 23:00:36,162 INFO L226 Difference]: Without dead ends: 4911 [2024-11-23 23:00:36,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:00:36,177 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 128 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:36,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1513 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:00:36,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2024-11-23 23:00:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 4911. [2024-11-23 23:00:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4911 states, 3544 states have (on average 1.3061512415349887) internal successors, (4629), 3581 states have internal predecessors, (4629), 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) [2024-11-23 23:00:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4911 states to 4911 states and 6726 transitions. [2024-11-23 23:00:36,549 INFO L78 Accepts]: Start accepts. Automaton has 4911 states and 6726 transitions. Word has length 275 [2024-11-23 23:00:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:36,550 INFO L471 AbstractCegarLoop]: Abstraction has 4911 states and 6726 transitions. [2024-11-23 23:00:36,550 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) [2024-11-23 23:00:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4911 states and 6726 transitions. [2024-11-23 23:00:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-23 23:00:36,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:36,564 INFO L218 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] [2024-11-23 23:00:36,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 23:00:36,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:36,766 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:36,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash 110212755, now seen corresponding path program 1 times [2024-11-23 23:00:36,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:36,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181536916] [2024-11-23 23:00:36,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:36,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-23 23:00:38,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:38,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181536916] [2024-11-23 23:00:38,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181536916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:38,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:38,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:00:38,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155927282] [2024-11-23 23:00:38,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:38,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:00:38,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:38,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:00:38,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:38,884 INFO L87 Difference]: Start difference. First operand 4911 states and 6726 transitions. Second operand has 5 states, 5 states have (on average 24.8) 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), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:00:39,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:39,317 INFO L93 Difference]: Finished difference Result 9840 states and 13494 transitions. [2024-11-23 23:00:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:39,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) 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), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 276 [2024-11-23 23:00:39,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:39,348 INFO L225 Difference]: With dead ends: 9840 [2024-11-23 23:00:39,349 INFO L226 Difference]: Without dead ends: 4932 [2024-11-23 23:00:39,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:39,367 INFO L435 NwaCegarLoop]: 749 mSDtfsCounter, 1 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2984 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:39,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2984 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2024-11-23 23:00:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4926. [2024-11-23 23:00:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4926 states, 3556 states have (on average 1.3051181102362204) internal successors, (4641), 3593 states have internal predecessors, (4641), 1025 states have call successors, (1025), 330 states have call predecessors, (1025), 344 states have return successors, (1075), 1038 states have call predecessors, (1075), 1024 states have call successors, (1075) [2024-11-23 23:00:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4926 states to 4926 states and 6741 transitions. [2024-11-23 23:00:39,749 INFO L78 Accepts]: Start accepts. Automaton has 4926 states and 6741 transitions. Word has length 276 [2024-11-23 23:00:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:39,750 INFO L471 AbstractCegarLoop]: Abstraction has 4926 states and 6741 transitions. [2024-11-23 23:00:39,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) 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), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:00:39,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4926 states and 6741 transitions. [2024-11-23 23:00:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-23 23:00:39,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:39,763 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-23 23:00:39,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:00:39,763 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:39,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:39,764 INFO L85 PathProgramCache]: Analyzing trace with hash -66196203, now seen corresponding path program 2 times [2024-11-23 23:00:39,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:39,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496883756] [2024-11-23 23:00:39,764 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:00:39,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:40,900 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:00:40,901 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:00:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-23 23:00:41,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:41,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496883756] [2024-11-23 23:00:41,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496883756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:41,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:41,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:41,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660939921] [2024-11-23 23:00:41,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:41,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:41,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:41,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:41,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:41,247 INFO L87 Difference]: Start difference. First operand 4926 states and 6741 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:00:45,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:00:45,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:45,690 INFO L93 Difference]: Finished difference Result 4926 states and 6741 transitions. [2024-11-23 23:00:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:45,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (25), 3 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 296 [2024-11-23 23:00:45,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:45,700 INFO L225 Difference]: With dead ends: 4926 [2024-11-23 23:00:45,701 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:00:45,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:45,718 INFO L435 NwaCegarLoop]: 759 mSDtfsCounter, 382 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:45,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1440 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:00:45,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:00:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:00:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:00:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:00:45,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 296 [2024-11-23 23:00:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:45,727 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:00:45,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:00:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:00:45,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:00:45,730 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:00:45,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:00:45,733 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:45,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:02:21,484 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:02:21,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:02:21 BoogieIcfgContainer [2024-11-23 23:02:21,507 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:02:21,508 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:02:21,508 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:02:21,509 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:02:21,510 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:58:45" (3/4) ... [2024-11-23 23:02:21,512 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_pf_mutex [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_check_events [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_getgeo [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure unregister_blkdev [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __const_udelay [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_pf_mutex [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2024-11-23 23:02:21,520 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure put_disk [2024-11-23 23:02:21,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_atapi [2024-11-23 23:02:21,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_capacity [2024-11-23 23:02:21,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_reset [2024-11-23 23:02:21,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_command [2024-11-23 23:02:21,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_probe [2024-11-23 23:02:21,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_block [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure set_capacity [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_lock [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_wait [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_identify [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_sleep [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_req_sense [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_mode_sense [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-23 23:02:21,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_completion [2024-11-23 23:02:21,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xl [2024-11-23 23:02:21,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-11-23 23:02:21,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2024-11-23 23:02:21,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pf_ioctl [2024-11-23 23:02:21,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2024-11-23 23:02:21,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 215 nodes and edges [2024-11-23 23:02:21,559 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-11-23 23:02:21,563 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-23 23:02:21,566 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-23 23:02:21,570 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:02:21,573 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 23:02:21,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:02:21,916 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:02:21,917 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:02:21,917 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:02:21,919 INFO L158 Benchmark]: Toolchain (without parser) took 229932.20ms. Allocated memory was 117.4MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 85.8MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-23 23:02:21,919 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:02:21,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2040.71ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 64.4MB in the end (delta: 21.2MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2024-11-23 23:02:21,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 206.02ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 51.1MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:02:21,920 INFO L158 Benchmark]: Boogie Preprocessor took 454.39ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 55.2MB in the end (delta: -4.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2024-11-23 23:02:21,920 INFO L158 Benchmark]: RCFGBuilder took 10313.44ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 55.2MB in the beginning and 77.2MB in the end (delta: -22.0MB). Peak memory consumption was 115.9MB. Max. memory is 16.1GB. [2024-11-23 23:02:21,921 INFO L158 Benchmark]: TraceAbstraction took 216500.14ms. Allocated memory was 209.7MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 77.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-23 23:02:21,925 INFO L158 Benchmark]: Witness Printer took 409.69ms. Allocated memory is still 2.6GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-23 23:02:21,926 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2040.71ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 64.4MB in the end (delta: 21.2MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 206.02ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 51.1MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 454.39ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 55.2MB in the end (delta: -4.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * RCFGBuilder took 10313.44ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 55.2MB in the beginning and 77.2MB in the end (delta: -22.0MB). Peak memory consumption was 115.9MB. Max. memory is 16.1GB. * TraceAbstraction took 216500.14ms. Allocated memory was 209.7MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 77.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 409.69ms. Allocated memory is still 2.6GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 5165]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 579 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 120.6s, OverallIterations: 23, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 32.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 7909 SdHoareTripleChecker+Valid, 26.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7879 mSDsluCounter, 37004 SdHoareTripleChecker+Invalid, 25.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18148 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 277 IncrementalHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 18856 mSDtfsCounter, 277 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2176 GetRequests, 2112 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4926occurred in iteration=22, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 23 MinimizatonAttempts, 601 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.2s SsaConstructionTime, 9.4s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 4406 NumberOfCodeBlocks, 4093 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 4833 ConstructedInterpolants, 0 QuantifiedInterpolants, 5567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 52412 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 40 InterpolantComputations, 21 PerfectInterpolantSequences, 2338/2357 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4332]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3822]: Location Invariant Derived location invariant: ((((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) || ((((((1 == ldv_mutex_mutex_of_device) && (2 == ldv_mutex_pf_mutex)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0))) - InvariantResult [Line: 3674]: Loop Invariant Derived loop invariant: ((((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (unit <= 3)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3822]: Location Invariant Derived location invariant: ((((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) || ((((((1 == ldv_mutex_mutex_of_device) && (2 == ldv_mutex_pf_mutex)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0))) - InvariantResult [Line: 4070]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 4070]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3983]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 4341]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 3948]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 4369]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) - InvariantResult [Line: 4112]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_retval_pf_init == 0)) && (ldv_mutex_pf_mutex == 1)) RESULT: Ultimate proved your program to be correct! [2024-11-23 23:02:21,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b53abfe-f394-4f46-a74b-2de61c92c39a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE