./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB --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 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:46:40,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:46:40,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:46:40,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:46:40,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:46:40,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:46:40,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:46:40,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:46:40,483 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:46:40,484 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:46:40,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:46:40,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:46:40,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:46:40,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:46:40,487 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:46:40,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:46:40,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:46:40,488 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:46:40,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:40,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:40,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:40,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:40,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:46:40,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:40,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:40,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:40,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:40,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:46:40,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:46:40,492 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:46:40,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:46:40,492 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:46:40,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:46:40,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:46:40,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:46:40,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:46:40,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:46:40,493 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_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-28 04:46:40,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:46:40,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:46:40,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:46:40,893 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:46:40,893 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:46:40,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-28 04:46:44,541 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/data/9fc566fd2/4aad9bb9aaf54400a1acc2576e79bc8e/FLAG059285d44 [2024-11-28 04:46:45,131 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:46:45,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-28 04:46:45,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/data/9fc566fd2/4aad9bb9aaf54400a1acc2576e79bc8e/FLAG059285d44 [2024-11-28 04:46:45,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/data/9fc566fd2/4aad9bb9aaf54400a1acc2576e79bc8e [2024-11-28 04:46:45,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:46:45,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:46:45,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:45,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:46:45,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:46:45,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:45" (1/1) ... [2024-11-28 04:46:45,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ce1670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:45, skipping insertion in model container [2024-11-28 04:46:45,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:45" (1/1) ... [2024-11-28 04:46:45,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:46:46,695 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_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-28 04:46:47,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:47,178 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:46:47,427 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_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-28 04:46:47,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:47,774 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:46:47,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47 WrapperNode [2024-11-28 04:46:47,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:47,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:47,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:46:47,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:46:47,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:47,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,017 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2397 [2024-11-28 04:46:48,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:48,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:46:48,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:46:48,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:46:48,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,358 INFO L175 MemorySlicer]: Split 666 memory accesses to 14 slices as follows [2, 5, 7, 7, 44, 83, 5, 6, 175, 175, 22, 125, 2, 8]. 26 percent of accesses are in the largest equivalence class. The 213 initializations are split as follows [2, 5, 0, 0, 0, 63, 5, 0, 0, 5, 0, 125, 0, 8]. The 322 writes are split as follows [0, 0, 0, 0, 44, 20, 0, 6, 150, 97, 4, 0, 1, 0]. [2024-11-28 04:46:48,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,492 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:46:48,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:46:48,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:46:48,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:46:48,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (1/1) ... [2024-11-28 04:46:48,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:48,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:48,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:46:48,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:46:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2024-11-28 04:46:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2024-11-28 04:46:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2024-11-28 04:46:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2024-11-28 04:46:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2024-11-28 04:46:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2024-11-28 04:46:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2024-11-28 04:46:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2024-11-28 04:46:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2024-11-28 04:46:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2024-11-28 04:46:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2024-11-28 04:46:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2024-11-28 04:46:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2024-11-28 04:46:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2024-11-28 04:46:48,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2024-11-28 04:46:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2024-11-28 04:46:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2024-11-28 04:46:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2024-11-28 04:46:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2024-11-28 04:46:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2024-11-28 04:46:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 04:46:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:46:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 04:46:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:46:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:46:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:46:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:46:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:46:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:46:48,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:46:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 04:46:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 04:46:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 04:46:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 04:46:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 04:46:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 04:46:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-28 04:46:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-28 04:46:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 04:46:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 04:46:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-28 04:46:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-28 04:46:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 04:46:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 04:46:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:46:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 04:46:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 04:46:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 04:46:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 04:46:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 04:46:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-28 04:46:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-28 04:46:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 04:46:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:46:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-28 04:46:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-28 04:46:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-28 04:46:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-28 04:46:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-28 04:46:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:46:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-28 04:46:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-28 04:46:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-28 04:46:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-28 04:46:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:46:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:46:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:46:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 04:46:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 04:46:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-28 04:46:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-28 04:46:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:46:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-28 04:46:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-28 04:46:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-28 04:46:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-28 04:46:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-28 04:46:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:46:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-28 04:46:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-28 04:46:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:46:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:46:49,478 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:46:49,481 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:46:49,628 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 04:46:49,740 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-28 04:46:59,815 INFO L? ?]: Removed 814 outVars from TransFormulas that were not future-live. [2024-11-28 04:46:59,815 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:46:59,859 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:46:59,859 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-28 04:46:59,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:59 BoogieIcfgContainer [2024-11-28 04:46:59,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:46:59,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:46:59,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:46:59,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:46:59,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:46:45" (1/3) ... [2024-11-28 04:46:59,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bc83bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:59, skipping insertion in model container [2024-11-28 04:46:59,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:47" (2/3) ... [2024-11-28 04:46:59,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bc83bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:59, skipping insertion in model container [2024-11-28 04:46:59,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:59" (3/3) ... [2024-11-28 04:46:59,876 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-28 04:46:59,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:46:59,899 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i that has 35 procedures, 589 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-28 04:47:00,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:47:00,031 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;@13281404, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:47:00,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:47:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 522 states, 382 states have (on average 1.3769633507853403) internal successors, (526), 408 states have internal predecessors, (526), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-28 04:47:00,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 04:47:00,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:00,051 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] [2024-11-28 04:47:00,052 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:00,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash 173540587, now seen corresponding path program 1 times [2024-11-28 04:47:00,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:00,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841406305] [2024-11-28 04:47:00,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:00,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:04,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:04,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841406305] [2024-11-28 04:47:04,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841406305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:04,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:04,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:04,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392077816] [2024-11-28 04:47:04,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:04,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:04,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:04,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:04,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:04,466 INFO L87 Difference]: Start difference. First operand has 522 states, 382 states have (on average 1.3769633507853403) internal successors, (526), 408 states have internal predecessors, (526), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-28 04:47:08,562 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 [] [2024-11-28 04:47:08,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:08,981 INFO L93 Difference]: Finished difference Result 1527 states and 2294 transitions. [2024-11-28 04:47:08,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:08,984 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), 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 22 [2024-11-28 04:47:08,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:09,021 INFO L225 Difference]: With dead ends: 1527 [2024-11-28 04:47:09,022 INFO L226 Difference]: Without dead ends: 992 [2024-11-28 04:47:09,031 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 [2024-11-28 04:47:09,035 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 706 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:09,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1481 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:47:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-11-28 04:47:09,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2024-11-28 04:47:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 732 states have (on average 1.3442622950819672) internal successors, (984), 768 states have internal predecessors, (984), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-28 04:47:09,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1425 transitions. [2024-11-28 04:47:09,275 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1425 transitions. Word has length 22 [2024-11-28 04:47:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:09,276 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1425 transitions. [2024-11-28 04:47:09,276 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), 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) [2024-11-28 04:47:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1425 transitions. [2024-11-28 04:47:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:47:09,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:09,280 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:47:09,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:47:09,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:09,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash -176837812, now seen corresponding path program 1 times [2024-11-28 04:47:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:09,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584288797] [2024-11-28 04:47:09,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:12,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:12,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584288797] [2024-11-28 04:47:12,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584288797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:12,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:12,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:12,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37378140] [2024-11-28 04:47:12,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:12,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:12,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:12,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:12,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:12,420 INFO L87 Difference]: Start difference. First operand 992 states and 1425 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:12,634 INFO L93 Difference]: Finished difference Result 1018 states and 1457 transitions. [2024-11-28 04:47:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:12,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 04:47:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:12,652 INFO L225 Difference]: With dead ends: 1018 [2024-11-28 04:47:12,657 INFO L226 Difference]: Without dead ends: 1005 [2024-11-28 04:47:12,658 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 [2024-11-28 04:47:12,659 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 726 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 762 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 [2024-11-28 04:47:12,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 762 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-28 04:47:12,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 992. [2024-11-28 04:47:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 732 states have (on average 1.342896174863388) internal successors, (983), 768 states have internal predecessors, (983), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-28 04:47:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1424 transitions. [2024-11-28 04:47:12,783 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1424 transitions. Word has length 32 [2024-11-28 04:47:12,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:12,783 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1424 transitions. [2024-11-28 04:47:12,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1424 transitions. [2024-11-28 04:47:12,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:47:12,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:12,789 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:47:12,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:47:12,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:12,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:12,790 INFO L85 PathProgramCache]: Analyzing trace with hash -119579510, now seen corresponding path program 1 times [2024-11-28 04:47:12,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:12,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779334485] [2024-11-28 04:47:12,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:12,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:15,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:15,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779334485] [2024-11-28 04:47:15,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779334485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:15,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:15,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:15,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180979452] [2024-11-28 04:47:15,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:15,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:15,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:15,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:15,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:15,900 INFO L87 Difference]: Start difference. First operand 992 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:16,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:16,239 INFO L93 Difference]: Finished difference Result 2951 states and 4255 transitions. [2024-11-28 04:47:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:16,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 04:47:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:16,264 INFO L225 Difference]: With dead ends: 2951 [2024-11-28 04:47:16,264 INFO L226 Difference]: Without dead ends: 1971 [2024-11-28 04:47:16,268 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 [2024-11-28 04:47:16,272 INFO L435 NwaCegarLoop]: 731 mSDtfsCounter, 709 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:16,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1448 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2024-11-28 04:47:16,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1961. [2024-11-28 04:47:16,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1450 states have (on average 1.3413793103448275) internal successors, (1945), 1518 states have internal predecessors, (1945), 439 states have call successors, (439), 72 states have call predecessors, (439), 71 states have return successors, (440), 386 states have call predecessors, (440), 434 states have call successors, (440) [2024-11-28 04:47:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2824 transitions. [2024-11-28 04:47:16,505 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2824 transitions. Word has length 32 [2024-11-28 04:47:16,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:16,505 INFO L471 AbstractCegarLoop]: Abstraction has 1961 states and 2824 transitions. [2024-11-28 04:47:16,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2824 transitions. [2024-11-28 04:47:16,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 04:47:16,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:16,510 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:47:16,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:47:16,510 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:16,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:16,511 INFO L85 PathProgramCache]: Analyzing trace with hash 587744373, now seen corresponding path program 1 times [2024-11-28 04:47:16,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:16,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256029377] [2024-11-28 04:47:16,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:16,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:19,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:19,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256029377] [2024-11-28 04:47:19,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256029377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:19,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:19,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:19,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250162149] [2024-11-28 04:47:19,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:19,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:19,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:19,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:19,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:19,027 INFO L87 Difference]: Start difference. First operand 1961 states and 2824 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:19,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:19,428 INFO L93 Difference]: Finished difference Result 5854 states and 8435 transitions. [2024-11-28 04:47:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:19,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-28 04:47:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:19,465 INFO L225 Difference]: With dead ends: 5854 [2024-11-28 04:47:19,465 INFO L226 Difference]: Without dead ends: 3905 [2024-11-28 04:47:19,473 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 [2024-11-28 04:47:19,476 INFO L435 NwaCegarLoop]: 1292 mSDtfsCounter, 703 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:19,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 2009 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:19,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2024-11-28 04:47:19,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3896. [2024-11-28 04:47:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 2883 states have (on average 1.3392299687825182) internal successors, (3861), 3015 states have internal predecessors, (3861), 871 states have call successors, (871), 142 states have call predecessors, (871), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-28 04:47:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5610 transitions. [2024-11-28 04:47:19,829 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5610 transitions. Word has length 33 [2024-11-28 04:47:19,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:19,830 INFO L471 AbstractCegarLoop]: Abstraction has 3896 states and 5610 transitions. [2024-11-28 04:47:19,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:19,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5610 transitions. [2024-11-28 04:47:19,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:47:19,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:19,836 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:47:19,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:47:19,837 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:19,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:19,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1039953133, now seen corresponding path program 1 times [2024-11-28 04:47:19,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:19,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54747651] [2024-11-28 04:47:19,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:19,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:22,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:22,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54747651] [2024-11-28 04:47:22,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54747651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:22,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:22,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:22,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643105869] [2024-11-28 04:47:22,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:22,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:22,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:22,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:22,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:22,090 INFO L87 Difference]: Start difference. First operand 3896 states and 5610 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:22,340 INFO L93 Difference]: Finished difference Result 3903 states and 5616 transitions. [2024-11-28 04:47:22,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-28 04:47:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:22,377 INFO L225 Difference]: With dead ends: 3903 [2024-11-28 04:47:22,377 INFO L226 Difference]: Without dead ends: 3900 [2024-11-28 04:47:22,380 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 [2024-11-28 04:47:22,382 INFO L435 NwaCegarLoop]: 1293 mSDtfsCounter, 700 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:22,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 2009 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2024-11-28 04:47:22,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3897. [2024-11-28 04:47:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3897 states, 2884 states have (on average 1.339112343966713) internal successors, (3862), 3016 states have internal predecessors, (3862), 871 states have call successors, (871), 142 states have call predecessors, (871), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-28 04:47:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 5611 transitions. [2024-11-28 04:47:22,716 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 5611 transitions. Word has length 34 [2024-11-28 04:47:22,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:22,716 INFO L471 AbstractCegarLoop]: Abstraction has 3897 states and 5611 transitions. [2024-11-28 04:47:22,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 5611 transitions. [2024-11-28 04:47:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 04:47:22,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:22,719 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:47:22,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:47:22,719 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:22,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2121439624, now seen corresponding path program 1 times [2024-11-28 04:47:22,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:22,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812736465] [2024-11-28 04:47:22,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:22,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:24,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:24,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812736465] [2024-11-28 04:47:24,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812736465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:24,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:24,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:24,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000380606] [2024-11-28 04:47:24,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:24,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:24,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:24,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:24,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:24,670 INFO L87 Difference]: Start difference. First operand 3897 states and 5611 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:24,870 INFO L93 Difference]: Finished difference Result 3899 states and 5612 transitions. [2024-11-28 04:47:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:24,871 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-28 04:47:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:24,901 INFO L225 Difference]: With dead ends: 3899 [2024-11-28 04:47:24,901 INFO L226 Difference]: Without dead ends: 3896 [2024-11-28 04:47:24,904 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 [2024-11-28 04:47:24,906 INFO L435 NwaCegarLoop]: 728 mSDtfsCounter, 705 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 728 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 [2024-11-28 04:47:24,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 728 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:24,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2024-11-28 04:47:25,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3896. [2024-11-28 04:47:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 2884 states have (on average 1.33876560332871) internal successors, (3861), 3015 states have internal predecessors, (3861), 870 states have call successors, (870), 142 states have call predecessors, (870), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-28 04:47:25,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5609 transitions. [2024-11-28 04:47:25,237 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5609 transitions. Word has length 35 [2024-11-28 04:47:25,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:25,238 INFO L471 AbstractCegarLoop]: Abstraction has 3896 states and 5609 transitions. [2024-11-28 04:47:25,238 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5609 transitions. [2024-11-28 04:47:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:47:25,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:25,240 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:47:25,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:47:25,241 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:25,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:25,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1340362416, now seen corresponding path program 1 times [2024-11-28 04:47:25,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:25,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499026360] [2024-11-28 04:47:25,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:25,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:27,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:27,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:27,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499026360] [2024-11-28 04:47:27,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499026360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:27,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:27,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:27,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371779730] [2024-11-28 04:47:27,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:27,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:27,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:27,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:27,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:27,539 INFO L87 Difference]: Start difference. First operand 3896 states and 5609 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:27,741 INFO L93 Difference]: Finished difference Result 3898 states and 5610 transitions. [2024-11-28 04:47:27,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:27,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2024-11-28 04:47:27,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:27,768 INFO L225 Difference]: With dead ends: 3898 [2024-11-28 04:47:27,768 INFO L226 Difference]: Without dead ends: 3886 [2024-11-28 04:47:27,771 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 [2024-11-28 04:47:27,773 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 702 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:27,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2024-11-28 04:47:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3886. [2024-11-28 04:47:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 2875 states have (on average 1.3384347826086958) internal successors, (3848), 3005 states have internal predecessors, (3848), 869 states have call successors, (869), 142 states have call predecessors, (869), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-28 04:47:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 5595 transitions. [2024-11-28 04:47:28,102 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 5595 transitions. Word has length 36 [2024-11-28 04:47:28,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:28,103 INFO L471 AbstractCegarLoop]: Abstraction has 3886 states and 5595 transitions. [2024-11-28 04:47:28,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 5595 transitions. [2024-11-28 04:47:28,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:47:28,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:28,110 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:47:28,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:47:28,110 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:28,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:28,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1825789101, now seen corresponding path program 1 times [2024-11-28 04:47:28,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:28,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831083155] [2024-11-28 04:47:28,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:28,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 04:47:30,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:30,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831083155] [2024-11-28 04:47:30,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831083155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:30,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:30,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:30,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078530108] [2024-11-28 04:47:30,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:30,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:30,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:30,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:30,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:30,925 INFO L87 Difference]: Start difference. First operand 3886 states and 5595 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:47:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:31,321 INFO L93 Difference]: Finished difference Result 7888 states and 11355 transitions. [2024-11-28 04:47:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2024-11-28 04:47:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:31,350 INFO L225 Difference]: With dead ends: 7888 [2024-11-28 04:47:31,350 INFO L226 Difference]: Without dead ends: 4014 [2024-11-28 04:47:31,364 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 [2024-11-28 04:47:31,365 INFO L435 NwaCegarLoop]: 728 mSDtfsCounter, 45 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:31,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1435 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2024-11-28 04:47:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 3990. [2024-11-28 04:47:31,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 2978 states have (on average 1.3411685695097382) internal successors, (3994), 3108 states have internal predecessors, (3994), 869 states have call successors, (869), 143 states have call predecessors, (869), 142 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-28 04:47:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5741 transitions. [2024-11-28 04:47:31,673 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5741 transitions. Word has length 112 [2024-11-28 04:47:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:31,673 INFO L471 AbstractCegarLoop]: Abstraction has 3990 states and 5741 transitions. [2024-11-28 04:47:31,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:47:31,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5741 transitions. [2024-11-28 04:47:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:47:31,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:31,679 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-28 04:47:31,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:47:31,680 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:31,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:31,680 INFO L85 PathProgramCache]: Analyzing trace with hash 151298953, now seen corresponding path program 1 times [2024-11-28 04:47:31,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:31,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317630959] [2024-11-28 04:47:31,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:31,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:47:35,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:35,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317630959] [2024-11-28 04:47:35,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317630959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:35,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309012283] [2024-11-28 04:47:35,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:35,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:35,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:35,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:35,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:47:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:38,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:47:38,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:47:38,803 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:38,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309012283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:38,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:38,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-28 04:47:38,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668385249] [2024-11-28 04:47:38,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:38,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:38,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:38,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:38,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:47:38,807 INFO L87 Difference]: Start difference. First operand 3990 states and 5741 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:47:42,872 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 [] [2024-11-28 04:47:44,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:44,087 INFO L93 Difference]: Finished difference Result 12098 states and 17405 transitions. [2024-11-28 04:47:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:47:44,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 121 [2024-11-28 04:47:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:44,171 INFO L225 Difference]: With dead ends: 12098 [2024-11-28 04:47:44,171 INFO L226 Difference]: Without dead ends: 8124 [2024-11-28 04:47:44,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:47:44,188 INFO L435 NwaCegarLoop]: 1423 mSDtfsCounter, 726 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 4966 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:44,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 4966 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:47:44,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8124 states. [2024-11-28 04:47:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8124 to 4078. [2024-11-28 04:47:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4078 states, 3042 states have (on average 1.3339907955292571) internal successors, (4058), 3172 states have internal predecessors, (4058), 893 states have call successors, (893), 143 states have call predecessors, (893), 142 states have return successors, (906), 794 states have call predecessors, (906), 890 states have call successors, (906) [2024-11-28 04:47:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 5857 transitions. [2024-11-28 04:47:44,684 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 5857 transitions. Word has length 121 [2024-11-28 04:47:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:44,685 INFO L471 AbstractCegarLoop]: Abstraction has 4078 states and 5857 transitions. [2024-11-28 04:47:44,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:47:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 5857 transitions. [2024-11-28 04:47:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:47:44,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:44,692 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-28 04:47:44,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:47:44,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:44,897 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:44,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:44,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1128564725, now seen corresponding path program 1 times [2024-11-28 04:47:44,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:44,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172217909] [2024-11-28 04:47:44,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:44,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:47:49,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:49,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172217909] [2024-11-28 04:47:49,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172217909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:49,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081014093] [2024-11-28 04:47:49,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:49,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:49,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:49,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:49,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:47:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:53,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 2977 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:47:53,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:53,668 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:47:53,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:53,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081014093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:53,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:53,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-28 04:47:53,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720548600] [2024-11-28 04:47:53,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:53,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:53,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:53,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:53,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:53,674 INFO L87 Difference]: Start difference. First operand 4078 states and 5857 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:47:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:54,122 INFO L93 Difference]: Finished difference Result 8196 states and 11777 transitions. [2024-11-28 04:47:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2024-11-28 04:47:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:54,149 INFO L225 Difference]: With dead ends: 8196 [2024-11-28 04:47:54,149 INFO L226 Difference]: Without dead ends: 4078 [2024-11-28 04:47:54,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:54,168 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 2 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:54,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2156 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4078 states. [2024-11-28 04:47:54,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4078 to 4078. [2024-11-28 04:47:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4078 states, 3042 states have (on average 1.331360946745562) internal successors, (4050), 3172 states have internal predecessors, (4050), 893 states have call successors, (893), 143 states have call predecessors, (893), 142 states have return successors, (906), 794 states have call predecessors, (906), 890 states have call successors, (906) [2024-11-28 04:47:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 5849 transitions. [2024-11-28 04:47:54,679 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 5849 transitions. Word has length 121 [2024-11-28 04:47:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:54,680 INFO L471 AbstractCegarLoop]: Abstraction has 4078 states and 5849 transitions. [2024-11-28 04:47:54,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 04:47:54,680 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 5849 transitions. [2024-11-28 04:47:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 04:47:54,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:54,688 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2024-11-28 04:47:54,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:47:54,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:47:54,890 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:54,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash -855867541, now seen corresponding path program 1 times [2024-11-28 04:47:54,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:54,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216985845] [2024-11-28 04:47:54,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:54,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:59,154 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:47:59,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:59,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216985845] [2024-11-28 04:47:59,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216985845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:59,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081265954] [2024-11-28 04:47:59,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:59,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:59,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:59,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:59,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:48:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:01,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 2983 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 04:48:01,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:48:02,674 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:02,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081265954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:02,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:02,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 12 [2024-11-28 04:48:02,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579528904] [2024-11-28 04:48:02,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:02,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:48:02,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:48:02,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:48:02,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:48:02,677 INFO L87 Difference]: Start difference. First operand 4078 states and 5849 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:48:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:03,619 INFO L93 Difference]: Finished difference Result 8244 states and 11849 transitions. [2024-11-28 04:48:03,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:48:03,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 125 [2024-11-28 04:48:03,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:03,647 INFO L225 Difference]: With dead ends: 8244 [2024-11-28 04:48:03,647 INFO L226 Difference]: Without dead ends: 4182 [2024-11-28 04:48:03,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:48:03,663 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 2 mSDsluCounter, 5775 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6500 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:03,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6500 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:48:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2024-11-28 04:48:03,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 4158. [2024-11-28 04:48:03,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3106 states have (on average 1.3245331616226659) internal successors, (4114), 3236 states have internal predecessors, (4114), 893 states have call successors, (893), 143 states have call predecessors, (893), 158 states have return successors, (970), 810 states have call predecessors, (970), 890 states have call successors, (970) [2024-11-28 04:48:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 5977 transitions. [2024-11-28 04:48:04,081 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 5977 transitions. Word has length 125 [2024-11-28 04:48:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:04,082 INFO L471 AbstractCegarLoop]: Abstraction has 4158 states and 5977 transitions. [2024-11-28 04:48:04,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 04:48:04,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 5977 transitions. [2024-11-28 04:48:04,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 04:48:04,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:04,089 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2024-11-28 04:48:04,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:48:04,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:48:04,291 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:04,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:04,293 INFO L85 PathProgramCache]: Analyzing trace with hash 997449898, now seen corresponding path program 1 times [2024-11-28 04:48:04,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:48:04,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631052698] [2024-11-28 04:48:04,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:04,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:48:08,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:48:08,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631052698] [2024-11-28 04:48:08,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631052698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:08,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215830025] [2024-11-28 04:48:08,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:08,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:08,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:08,894 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:08,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:48:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:12,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 04:48:12,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:48:12,828 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:48:14,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215830025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:14,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:48:14,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-28 04:48:14,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415469814] [2024-11-28 04:48:14,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:14,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:48:14,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:48:14,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:48:14,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:48:14,691 INFO L87 Difference]: Start difference. First operand 4158 states and 5977 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 12 states have internal predecessors, (110), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-28 04:48:16,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:16,081 INFO L93 Difference]: Finished difference Result 8420 states and 12097 transitions. [2024-11-28 04:48:16,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:48:16,082 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 12 states have internal predecessors, (110), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) Word has length 131 [2024-11-28 04:48:16,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:16,110 INFO L225 Difference]: With dead ends: 8420 [2024-11-28 04:48:16,110 INFO L226 Difference]: Without dead ends: 4278 [2024-11-28 04:48:16,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:48:16,125 INFO L435 NwaCegarLoop]: 735 mSDtfsCounter, 5 mSDsluCounter, 8743 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9478 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:16,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9478 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:48:16,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2024-11-28 04:48:16,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 4174. [2024-11-28 04:48:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4174 states, 3114 states have (on average 1.323699421965318) internal successors, (4122), 3244 states have internal predecessors, (4122), 901 states have call successors, (901), 143 states have call predecessors, (901), 158 states have return successors, (986), 818 states have call predecessors, (986), 898 states have call successors, (986) [2024-11-28 04:48:16,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4174 states to 4174 states and 6009 transitions. [2024-11-28 04:48:16,579 INFO L78 Accepts]: Start accepts. Automaton has 4174 states and 6009 transitions. Word has length 131 [2024-11-28 04:48:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:16,580 INFO L471 AbstractCegarLoop]: Abstraction has 4174 states and 6009 transitions. [2024-11-28 04:48:16,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 12 states have internal predecessors, (110), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-28 04:48:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 4174 states and 6009 transitions. [2024-11-28 04:48:16,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:48:16,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:16,585 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 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] [2024-11-28 04:48:16,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:16,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:16,786 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:16,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:16,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1906884043, now seen corresponding path program 2 times [2024-11-28 04:48:16,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:48:16,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049371304] [2024-11-28 04:48:16,788 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:48:16,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:18,664 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:48:18,665 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:48:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 04:48:21,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:48:21,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049371304] [2024-11-28 04:48:21,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049371304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:21,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752534789] [2024-11-28 04:48:21,354 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:48:21,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:21,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:21,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:21,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bbb5b40-f49d-4edd-970c-0dbc8d292b19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process