./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-queue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/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_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/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 32bit --witnessprinter.graph.data.programhash 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:32:06,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:32:06,282 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:32:06,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:32:06,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:32:06,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:32:06,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:32:06,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:32:06,318 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:32:06,319 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:32:06,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:32:06,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:32:06,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:32:06,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:32:06,321 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:32:06,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:32:06,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:32:06,322 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:32:06,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:32:06,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:32:06,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:32:06,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:32:06,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:32:06,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:32:06,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:32:06,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:32:06,323 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:32:06,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:32:06,324 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:32:06,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:06,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:06,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:06,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:06,325 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:32:06,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:06,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:32:06,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:32:06,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:06,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:32:06,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:32:06,326 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 [2024-11-27 20:32:06,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:32:06,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:32:06,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:32:06,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:32:06,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:32:06,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-11-27 20:32:09,654 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/c57255d7b/f32da5e0a5584ae9be1de30676aee632/FLAGb28be6a31 [2024-11-27 20:32:10,075 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:32:10,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-11-27 20:32:10,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/c57255d7b/f32da5e0a5584ae9be1de30676aee632/FLAGb28be6a31 [2024-11-27 20:32:10,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/c57255d7b/f32da5e0a5584ae9be1de30676aee632 [2024-11-27 20:32:10,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:32:10,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:32:10,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:10,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:32:10,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:32:10,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f39bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10, skipping insertion in model container [2024-11-27 20:32:10,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,200 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:32:10,550 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22460,22473] [2024-11-27 20:32:10,555 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22531,22544] [2024-11-27 20:32:10,556 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22605,22618] [2024-11-27 20:32:10,557 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22697,22710] [2024-11-27 20:32:10,558 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22774,22787] [2024-11-27 20:32:10,560 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22869,22882] [2024-11-27 20:32:10,561 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22946,22959] [2024-11-27 20:32:10,562 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23029,23042] [2024-11-27 20:32:10,563 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23124,23137] [2024-11-27 20:32:10,564 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23201,23214] [2024-11-27 20:32:10,565 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23284,23297] [2024-11-27 20:32:10,566 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23373,23386] [2024-11-27 20:32:10,567 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23459,23472] [2024-11-27 20:32:10,569 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23604,23617] [2024-11-27 20:32:10,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:10,587 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:32:10,624 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22460,22473] [2024-11-27 20:32:10,625 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22531,22544] [2024-11-27 20:32:10,626 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22605,22618] [2024-11-27 20:32:10,627 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22697,22710] [2024-11-27 20:32:10,628 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22774,22787] [2024-11-27 20:32:10,631 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22869,22882] [2024-11-27 20:32:10,632 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22946,22959] [2024-11-27 20:32:10,633 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23029,23042] [2024-11-27 20:32:10,634 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23124,23137] [2024-11-27 20:32:10,634 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23201,23214] [2024-11-27 20:32:10,638 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23284,23297] [2024-11-27 20:32:10,641 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23373,23386] [2024-11-27 20:32:10,642 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23459,23472] [2024-11-27 20:32:10,645 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23604,23617] [2024-11-27 20:32:10,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:10,675 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:32:10,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10 WrapperNode [2024-11-27 20:32:10,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:10,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:10,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:32:10,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:32:10,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,717 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 207 [2024-11-27 20:32:10,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:10,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:32:10,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:32:10,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:32:10,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,731 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,747 INFO L175 MemorySlicer]: Split 31 memory accesses to 2 slices as follows [2, 29]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 9 writes are split as follows [0, 9]. [2024-11-27 20:32:10,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,756 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:32:10,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:32:10,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:32:10,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:32:10,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (1/1) ... [2024-11-27 20:32:10,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:10,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:10,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:32:10,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:32:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:32:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:32:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:32:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:32:10,973 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:32:10,975 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:32:11,343 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-27 20:32:11,343 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:32:11,355 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:32:11,356 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-27 20:32:11,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:11 BoogieIcfgContainer [2024-11-27 20:32:11,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:32:11,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:32:11,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:32:11,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:32:11,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:32:10" (1/3) ... [2024-11-27 20:32:11,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a121842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:11, skipping insertion in model container [2024-11-27 20:32:11,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:10" (2/3) ... [2024-11-27 20:32:11,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a121842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:11, skipping insertion in model container [2024-11-27 20:32:11,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:11" (3/3) ... [2024-11-27 20:32:11,368 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-queue-2.i [2024-11-27 20:32:11,385 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:32:11,387 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-queue-2.i that has 1 procedures, 87 locations, 1 initial locations, 17 loop locations, and 14 error locations. [2024-11-27 20:32:11,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:32:11,464 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;@5c336626, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:32:11,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-27 20:32:11,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 86 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:11,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:32:11,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:11,475 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:32:11,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:11,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:11,481 INFO L85 PathProgramCache]: Analyzing trace with hash 28757443, now seen corresponding path program 1 times [2024-11-27 20:32:11,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:11,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123537545] [2024-11-27 20:32:11,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:11,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:11,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123537545] [2024-11-27 20:32:11,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123537545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:11,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:11,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:11,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748793493] [2024-11-27 20:32:11,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:11,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:32:11,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:11,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:32:11,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:32:11,775 INFO L87 Difference]: Start difference. First operand has 87 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 86 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:11,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:11,809 INFO L93 Difference]: Finished difference Result 172 states and 282 transitions. [2024-11-27 20:32:11,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:32:11,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 20:32:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:11,820 INFO L225 Difference]: With dead ends: 172 [2024-11-27 20:32:11,821 INFO L226 Difference]: Without dead ends: 81 [2024-11-27 20:32:11,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:32:11,829 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 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 [2024-11-27 20:32:11,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-27 20:32:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-27 20:32:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 80 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2024-11-27 20:32:11,877 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 5 [2024-11-27 20:32:11,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:11,878 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2024-11-27 20:32:11,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2024-11-27 20:32:11,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-27 20:32:11,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:11,879 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 20:32:11,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:32:11,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:11,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 889542441, now seen corresponding path program 1 times [2024-11-27 20:32:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:11,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993880965] [2024-11-27 20:32:11,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:11,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:11,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:11,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993880965] [2024-11-27 20:32:11,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993880965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:11,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:11,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:11,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468845419] [2024-11-27 20:32:11,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:11,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:11,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:11,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:11,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:11,981 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:12,041 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2024-11-27 20:32:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:12,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-27 20:32:12,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:12,044 INFO L225 Difference]: With dead ends: 81 [2024-11-27 20:32:12,044 INFO L226 Difference]: Without dead ends: 71 [2024-11-27 20:32:12,044 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 [2024-11-27 20:32:12,045 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 76 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:12,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 68 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-27 20:32:12,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-27 20:32:12,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 70 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2024-11-27 20:32:12,063 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 6 [2024-11-27 20:32:12,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:12,063 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2024-11-27 20:32:12,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,063 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2024-11-27 20:32:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:32:12,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:12,064 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:12,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:32:12,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:12,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash 535764304, now seen corresponding path program 1 times [2024-11-27 20:32:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:12,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077864660] [2024-11-27 20:32:12,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:12,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:12,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:12,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077864660] [2024-11-27 20:32:12,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077864660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:12,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:12,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:32:12,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068934045] [2024-11-27 20:32:12,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:12,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:12,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:12,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:12,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:12,568 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:12,773 INFO L93 Difference]: Finished difference Result 121 states and 134 transitions. [2024-11-27 20:32:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:12,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:32:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:12,776 INFO L225 Difference]: With dead ends: 121 [2024-11-27 20:32:12,776 INFO L226 Difference]: Without dead ends: 119 [2024-11-27 20:32:12,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:12,777 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 161 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:12,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 126 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:32:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-27 20:32:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 69. [2024-11-27 20:32:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.278688524590164) internal successors, (78), 68 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2024-11-27 20:32:12,800 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 10 [2024-11-27 20:32:12,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:12,800 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2024-11-27 20:32:12,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2024-11-27 20:32:12,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 20:32:12,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:12,801 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:12,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:32:12,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:12,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1924295232, now seen corresponding path program 1 times [2024-11-27 20:32:12,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:12,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393193954] [2024-11-27 20:32:12,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:12,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:12,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:12,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393193954] [2024-11-27 20:32:12,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393193954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:12,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:12,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:12,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948812439] [2024-11-27 20:32:12,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:12,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:12,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:12,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:12,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:12,883 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:12,954 INFO L93 Difference]: Finished difference Result 156 states and 181 transitions. [2024-11-27 20:32:12,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:12,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 20:32:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:12,956 INFO L225 Difference]: With dead ends: 156 [2024-11-27 20:32:12,956 INFO L226 Difference]: Without dead ends: 89 [2024-11-27 20:32:12,956 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 [2024-11-27 20:32:12,957 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 18 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:12,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 137 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:12,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-27 20:32:12,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2024-11-27 20:32:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 77 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2024-11-27 20:32:12,982 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 12 [2024-11-27 20:32:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:12,987 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2024-11-27 20:32:12,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2024-11-27 20:32:12,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:32:12,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:12,989 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:12,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:32:12,989 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:12,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash 570240528, now seen corresponding path program 1 times [2024-11-27 20:32:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993964790] [2024-11-27 20:32:12,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:12,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:13,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:13,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993964790] [2024-11-27 20:32:13,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993964790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:13,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:13,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:32:13,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621935934] [2024-11-27 20:32:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:13,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:13,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:13,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:13,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:13,239 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:13,396 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2024-11-27 20:32:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:32:13,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-27 20:32:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:13,398 INFO L225 Difference]: With dead ends: 93 [2024-11-27 20:32:13,398 INFO L226 Difference]: Without dead ends: 73 [2024-11-27 20:32:13,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:32:13,399 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 7 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:13,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 269 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:32:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-27 20:32:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-27 20:32:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:13,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2024-11-27 20:32:13,423 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 17 [2024-11-27 20:32:13,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:13,423 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2024-11-27 20:32:13,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:13,426 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2024-11-27 20:32:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:32:13,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:13,427 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:13,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:32:13,427 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:13,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1713214930, now seen corresponding path program 1 times [2024-11-27 20:32:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:13,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365181533] [2024-11-27 20:32:13,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:13,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:13,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:13,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365181533] [2024-11-27 20:32:13,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365181533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:13,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074996797] [2024-11-27 20:32:13,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:13,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:13,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:13,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:13,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:32:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:13,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:32:13,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:14,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:32:14,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-11-27 20:32:14,134 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-27 20:32:14,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 53 [2024-11-27 20:32:14,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2024-11-27 20:32:14,169 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 20:32:14,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 20:32:14,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-27 20:32:14,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:32:14,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:14,243 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 20:32:14,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-11-27 20:32:14,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-27 20:32:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:14,356 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:14,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:14,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2024-11-27 20:32:14,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:14,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 133 [2024-11-27 20:32:14,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:14,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 75 [2024-11-27 20:32:14,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2024-11-27 20:32:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:14,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074996797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:14,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:14,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-27 20:32:14,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066822864] [2024-11-27 20:32:14,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:14,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:32:14,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:14,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:32:14,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=63, Unknown=2, NotChecked=0, Total=90 [2024-11-27 20:32:14,907 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:15,161 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2024-11-27 20:32:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:32:15,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-27 20:32:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:15,163 INFO L225 Difference]: With dead ends: 147 [2024-11-27 20:32:15,163 INFO L226 Difference]: Without dead ends: 145 [2024-11-27 20:32:15,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=75, Unknown=2, NotChecked=0, Total=110 [2024-11-27 20:32:15,165 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 142 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:15,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 359 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:32:15,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-27 20:32:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 86. [2024-11-27 20:32:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 85 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2024-11-27 20:32:15,193 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 20 [2024-11-27 20:32:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:15,197 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2024-11-27 20:32:15,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2024-11-27 20:32:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:32:15,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:15,198 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:15,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:32:15,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:15,398 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:15,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:15,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1259299224, now seen corresponding path program 1 times [2024-11-27 20:32:15,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:15,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446654873] [2024-11-27 20:32:15,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:15,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:15,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:15,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446654873] [2024-11-27 20:32:15,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446654873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:15,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:15,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:15,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22994797] [2024-11-27 20:32:15,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:15,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:15,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:15,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:15,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:15,457 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:15,507 INFO L93 Difference]: Finished difference Result 178 states and 203 transitions. [2024-11-27 20:32:15,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:15,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-27 20:32:15,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:15,509 INFO L225 Difference]: With dead ends: 178 [2024-11-27 20:32:15,509 INFO L226 Difference]: Without dead ends: 111 [2024-11-27 20:32:15,509 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 [2024-11-27 20:32:15,510 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 25 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:15,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 130 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-27 20:32:15,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 100. [2024-11-27 20:32:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 92 states have (on average 1.1956521739130435) internal successors, (110), 99 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2024-11-27 20:32:15,524 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 21 [2024-11-27 20:32:15,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:15,524 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2024-11-27 20:32:15,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2024-11-27 20:32:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 20:32:15,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:15,525 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:15,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:32:15,526 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:15,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash -61944223, now seen corresponding path program 1 times [2024-11-27 20:32:15,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:15,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077486734] [2024-11-27 20:32:15,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:15,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:32:15,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:15,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077486734] [2024-11-27 20:32:15,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077486734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:15,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:15,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:15,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296966253] [2024-11-27 20:32:15,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:15,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:15,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:15,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:15,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:15,609 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:15,663 INFO L93 Difference]: Finished difference Result 207 states and 234 transitions. [2024-11-27 20:32:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:15,664 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-27 20:32:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:15,665 INFO L225 Difference]: With dead ends: 207 [2024-11-27 20:32:15,665 INFO L226 Difference]: Without dead ends: 126 [2024-11-27 20:32:15,665 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 [2024-11-27 20:32:15,666 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 31 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:15,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 145 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-27 20:32:15,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2024-11-27 20:32:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 106 states have (on average 1.179245283018868) internal successors, (125), 113 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2024-11-27 20:32:15,680 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 29 [2024-11-27 20:32:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:15,680 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2024-11-27 20:32:15,680 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2024-11-27 20:32:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-27 20:32:15,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:15,681 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:15,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:32:15,682 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:15,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:15,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2063940329, now seen corresponding path program 1 times [2024-11-27 20:32:15,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:15,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617870579] [2024-11-27 20:32:15,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:15,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:16,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617870579] [2024-11-27 20:32:16,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617870579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012008341] [2024-11-27 20:32:16,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:16,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:16,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:16,716 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:16,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:32:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:16,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 20:32:16,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:16,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:32:16,955 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:32:16,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2024-11-27 20:32:16,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-11-27 20:32:16,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:32:17,002 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 20:32:17,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 20:32:17,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-27 20:32:17,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:32:17,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:17,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:17,241 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-27 20:32:17,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 49 [2024-11-27 20:32:17,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:32:17,264 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-27 20:32:17,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 64 [2024-11-27 20:32:17,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:32:17,302 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-27 20:32:17,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-27 20:32:17,324 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-11-27 20:32:17,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 49 [2024-11-27 20:32:17,345 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-27 20:32:17,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 47 [2024-11-27 20:32:17,424 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-11-27 20:32:17,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 56 [2024-11-27 20:32:17,605 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-27 20:32:17,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23 [2024-11-27 20:32:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:17,610 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:17,645 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_455 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_455) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) is different from false [2024-11-27 20:32:17,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:17,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2024-11-27 20:32:17,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:17,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 141 [2024-11-27 20:32:17,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:17,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 175 [2024-11-27 20:32:17,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:17,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140624 treesize of output 99423 [2024-11-27 20:32:18,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11866 treesize of output 10542 [2024-11-27 20:32:19,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5174 treesize of output 4850 [2024-11-27 20:32:19,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:19,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4818 treesize of output 4474 [2024-11-27 20:32:19,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:19,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 4473 treesize of output 4085 [2024-11-27 20:32:19,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:19,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 4032 treesize of output 3699 [2024-11-27 20:32:20,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3674 treesize of output 3582 [2024-11-27 20:32:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-27 20:32:22,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012008341] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:22,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:22,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 18 [2024-11-27 20:32:22,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927791247] [2024-11-27 20:32:22,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:22,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:32:22,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:22,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:32:22,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=4, NotChecked=30, Total=306 [2024-11-27 20:32:22,800 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:24,000 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2024-11-27 20:32:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:32:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-27 20:32:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:24,004 INFO L225 Difference]: With dead ends: 188 [2024-11-27 20:32:24,004 INFO L226 Difference]: Without dead ends: 186 [2024-11-27 20:32:24,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=421, Unknown=7, NotChecked=44, Total=600 [2024-11-27 20:32:24,005 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 338 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 29 mSolverCounterUnsat, 42 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 42 IncrementalHoareTripleChecker+Unknown, 145 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:24,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 705 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 333 Invalid, 42 Unknown, 145 Unchecked, 0.9s Time] [2024-11-27 20:32:24,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-27 20:32:24,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 131. [2024-11-27 20:32:24,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 123 states have (on average 1.1626016260162602) internal successors, (143), 130 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2024-11-27 20:32:24,032 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 30 [2024-11-27 20:32:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:24,032 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2024-11-27 20:32:24,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2024-11-27 20:32:24,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-27 20:32:24,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:24,033 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:24,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:32:24,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:24,234 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:24,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:24,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1926087439, now seen corresponding path program 1 times [2024-11-27 20:32:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:24,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760329424] [2024-11-27 20:32:24,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:24,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:32:24,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:24,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760329424] [2024-11-27 20:32:24,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760329424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:24,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:24,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:24,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506266930] [2024-11-27 20:32:24,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:24,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:24,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:24,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:24,287 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:24,309 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2024-11-27 20:32:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:24,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-27 20:32:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:24,311 INFO L225 Difference]: With dead ends: 134 [2024-11-27 20:32:24,311 INFO L226 Difference]: Without dead ends: 132 [2024-11-27 20:32:24,311 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 [2024-11-27 20:32:24,312 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:24,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:24,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-27 20:32:24,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-27 20:32:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 124 states have (on average 1.1612903225806452) internal successors, (144), 131 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 144 transitions. [2024-11-27 20:32:24,334 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 144 transitions. Word has length 30 [2024-11-27 20:32:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:24,334 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 144 transitions. [2024-11-27 20:32:24,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 144 transitions. [2024-11-27 20:32:24,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-27 20:32:24,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:24,335 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:24,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:32:24,335 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:24,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:24,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1926089361, now seen corresponding path program 1 times [2024-11-27 20:32:24,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:24,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488576755] [2024-11-27 20:32:24,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:24,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:25,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:25,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488576755] [2024-11-27 20:32:25,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488576755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:25,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637725341] [2024-11-27 20:32:25,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:25,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:25,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:25,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:25,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:32:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:25,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:32:25,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:25,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:32:25,303 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:32:25,303 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:32:25,306 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:32:25,331 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 20:32:25,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 20:32:25,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-27 20:32:25,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:32:25,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:25,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:32:25,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2024-11-27 20:32:25,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:25,405 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 20:32:25,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 68 [2024-11-27 20:32:25,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2024-11-27 20:32:25,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-27 20:32:25,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-27 20:32:25,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-27 20:32:25,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-27 20:32:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:25,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:25,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 52 [2024-11-27 20:32:25,854 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-11-27 20:32:25,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 168 treesize of output 147 [2024-11-27 20:32:25,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:25,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 110 [2024-11-27 20:32:25,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:25,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 590 treesize of output 577 [2024-11-27 20:32:25,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:25,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 297 treesize of output 282 [2024-11-27 20:32:25,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:25,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 322 treesize of output 331 [2024-11-27 20:32:26,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 271 [2024-11-27 20:32:26,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:26,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 335 treesize of output 313 [2024-11-27 20:32:26,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 223 [2024-11-27 20:32:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:27,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637725341] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:27,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:27,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 17 [2024-11-27 20:32:27,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486233001] [2024-11-27 20:32:27,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:27,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:32:27,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:27,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:32:27,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=224, Unknown=6, NotChecked=0, Total=272 [2024-11-27 20:32:27,964 INFO L87 Difference]: Start difference. First operand 132 states and 144 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:28,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:28,600 INFO L93 Difference]: Finished difference Result 224 states and 242 transitions. [2024-11-27 20:32:28,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:32:28,601 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-27 20:32:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:28,603 INFO L225 Difference]: With dead ends: 224 [2024-11-27 20:32:28,603 INFO L226 Difference]: Without dead ends: 222 [2024-11-27 20:32:28,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=430, Unknown=6, NotChecked=0, Total=552 [2024-11-27 20:32:28,604 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 280 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:28,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 714 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:32:28,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-27 20:32:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 141. [2024-11-27 20:32:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 133 states have (on average 1.1578947368421053) internal successors, (154), 140 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:28,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 154 transitions. [2024-11-27 20:32:28,637 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 154 transitions. Word has length 30 [2024-11-27 20:32:28,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:28,637 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 154 transitions. [2024-11-27 20:32:28,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 154 transitions. [2024-11-27 20:32:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-27 20:32:28,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:28,642 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:28,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:32:28,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:32:28,843 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:32:28,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:28,843 INFO L85 PathProgramCache]: Analyzing trace with hash 98673736, now seen corresponding path program 1 times [2024-11-27 20:32:28,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:28,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25705675] [2024-11-27 20:32:28,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:28,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:29,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:29,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25705675] [2024-11-27 20:32:29,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25705675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:29,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724223049] [2024-11-27 20:32:29,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:29,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:29,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:29,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:29,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:32:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:29,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-27 20:32:29,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:29,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 20:32:29,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-27 20:32:29,913 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-27 20:32:29,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 35 [2024-11-27 20:32:29,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:32:29,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:32:29,947 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 20:32:29,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 20:32:29,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:32:29,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2024-11-27 20:32:29,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:29,973 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:32:29,974 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:32:29,977 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:32:30,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:30,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:32:30,149 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-11-27 20:32:30,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 71 [2024-11-27 20:32:30,159 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:32:30,177 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-27 20:32:30,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 62 [2024-11-27 20:32:30,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:32:30,196 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-27 20:32:30,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 81 [2024-11-27 20:32:30,217 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-27 20:32:30,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 15 [2024-11-27 20:32:30,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:32:30,242 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 20:32:30,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2024-11-27 20:32:30,262 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-11-27 20:32:30,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 48 [2024-11-27 20:32:30,287 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-27 20:32:30,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-27 20:32:30,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:32:30,310 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-11-27 20:32:30,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 41 [2024-11-27 20:32:30,378 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-11-27 20:32:30,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 68 [2024-11-27 20:32:30,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2024-11-27 20:32:30,619 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-27 20:32:30,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 23 [2024-11-27 20:32:30,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-27 20:32:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:30,626 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:30,672 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_749 (Array Int Int)) (v_ArrVal_750 (Array Int Int))) (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_750))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_749) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0))) is different from false [2024-11-27 20:32:30,697 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_744 (Array Int Int)) (v_ArrVal_743 (Array Int Int)) (v_ArrVal_746 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc3#1.base_35| Int) (v_ArrVal_749 (Array Int Int)) (v_ArrVal_750 (Array Int Int))) (or (= |v_ULTIMATE.start_main_#t~malloc3#1.base_35| 0) (not (= 0 (let ((.cse1 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset| |v_ULTIMATE.start_main_#t~malloc3#1.base_35|)) |v_ULTIMATE.start_main_#t~malloc3#1.base_35| v_ArrVal_743))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (select (let ((.cse0 (store .cse1 .cse2 v_ArrVal_750))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_744) |v_ULTIMATE.start_main_#t~malloc3#1.base_35| v_ArrVal_746) .cse2 v_ArrVal_749) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_35|) 0)))) is different from false [2024-11-27 20:32:30,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:30,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 80 [2024-11-27 20:32:30,843 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_744 (Array Int Int)) (v_arrayElimArr_22 (Array Int Int)) (v_ArrVal_743 (Array Int Int)) (v_ArrVal_746 (Array Int Int)) (v_ArrVal_749 (Array Int Int)) (v_ArrVal_750 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_22 |c_ULTIMATE.start_main_~item~0#1.offset|))) (or (not (= (let ((.cse1 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_arrayElimArr_22) .cse3 v_ArrVal_743))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (select (let ((.cse0 (store .cse1 .cse2 v_ArrVal_750))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_744) .cse3 v_ArrVal_746) .cse2 v_ArrVal_749) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) 0)) (= .cse3 0) (not (= (select |c_#valid| .cse3) 0))))) is different from false [2024-11-27 20:32:30,899 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-11-27 20:32:30,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 684 treesize of output 662 [2024-11-27 20:32:30,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:32:30,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 604 treesize of output 406 [2024-11-27 20:33:17,737 WARN L286 SmtUtils]: Spent 46.44s on a formula simplification. DAG size of input: 2510 DAG size of output: 751 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-27 20:33:17,737 INFO L349 Elim1Store]: treesize reduction 27038, result has 19.3 percent of original size [2024-11-27 20:33:17,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 40 select indices, 40 select index equivalence classes, 0 disjoint index pairs (out of 780 index pairs), introduced 43 new quantified variables, introduced 780 case distinctions, treesize of input 12359325 treesize of output 11755214 [2024-11-27 20:37:31,283 WARN L286 SmtUtils]: Spent 4.23m on a formula simplification. DAG size of input: 6736 DAG size of output: 2999 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:38:07,839 WARN L286 SmtUtils]: Spent 36.51s on a formula simplification. DAG size of input: 2867 DAG size of output: 2755 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:38:08,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:38:08,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 366869 treesize of output 324919 [2024-11-27 20:38:21,647 WARN L286 SmtUtils]: Spent 13.10s on a formula simplification that was a NOOP. DAG size: 2819 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:38:33,600 WARN L286 SmtUtils]: Spent 11.90s on a formula simplification that was a NOOP. DAG size: 2804 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:38:33,904 INFO L224 Elim1Store]: Index analysis took 136 ms [2024-11-27 20:38:34,731 INFO L349 Elim1Store]: treesize reduction 196, result has 75.5 percent of original size [2024-11-27 20:38:34,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 321251 treesize of output 299278 [2024-11-27 20:38:46,493 WARN L286 SmtUtils]: Spent 11.75s on a formula simplification that was a NOOP. DAG size: 2851 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:38:46,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:38:46,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 304568 treesize of output 272673 [2024-11-27 20:38:59,105 WARN L286 SmtUtils]: Spent 12.26s on a formula simplification that was a NOOP. DAG size: 2878 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:39:10,600 WARN L286 SmtUtils]: Spent 11.47s on a formula simplification that was a NOOP. DAG size: 2869 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:39:12,007 INFO L349 Elim1Store]: treesize reduction 60, result has 81.3 percent of original size [2024-11-27 20:39:12,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 15 new quantified variables, introduced 36 case distinctions, treesize of input 273385 treesize of output 221340 [2024-11-27 20:39:26,590 WARN L286 SmtUtils]: Spent 14.57s on a formula simplification that was a NOOP. DAG size: 2995 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:39:39,018 WARN L286 SmtUtils]: Spent 12.39s on a formula simplification that was a NOOP. DAG size: 2957 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:39:40,293 INFO L349 Elim1Store]: treesize reduction 61, result has 80.7 percent of original size [2024-11-27 20:39:40,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 28 case distinctions, treesize of input 220031 treesize of output 197471 [2024-11-27 20:39:54,887 WARN L286 SmtUtils]: Spent 14.58s on a formula simplification that was a NOOP. DAG size: 3047 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:40:08,334 WARN L286 SmtUtils]: Spent 13.41s on a formula simplification that was a NOOP. DAG size: 3020 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:40:08,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:40:08,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 551705 treesize of output 511874 [2024-11-27 20:40:55,325 WARN L286 SmtUtils]: Spent 46.52s on a formula simplification. DAG size of input: 4733 DAG size of output: 3663 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:40:55,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29476 treesize of output 27012 [2024-11-27 20:41:13,980 WARN L286 SmtUtils]: Spent 18.49s on a formula simplification that was a NOOP. DAG size: 3662 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:41:14,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28462 treesize of output 27200 [2024-11-27 20:41:33,445 WARN L286 SmtUtils]: Spent 19.32s on a formula simplification that was a NOOP. DAG size: 3661 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:41:33,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21550 treesize of output 20370 [2024-11-27 20:41:53,326 WARN L286 SmtUtils]: Spent 19.69s on a formula simplification that was a NOOP. DAG size: 3660 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:42:37,350 WARN L286 SmtUtils]: Spent 23.96s on a formula simplification that was a NOOP. DAG size: 2100 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:43:09,238 WARN L286 SmtUtils]: Spent 19.86s on a formula simplification. DAG size of input: 2073 DAG size of output: 2114 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:46:06,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-27 20:46:06,248 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-27 20:46:06,249 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-27 20:46:06,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:46:06,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:46:06,450 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 68 more [2024-11-27 20:46:06,458 INFO L158 Benchmark]: Toolchain (without parser) took 836328.74ms. Allocated memory was 117.4MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 93.3MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-27 20:46:06,458 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory was 103.8MB in the beginning and 103.6MB in the end (delta: 216.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:46:06,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.42ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 75.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:46:06,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.55ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:46:06,458 INFO L158 Benchmark]: Boogie Preprocessor took 50.28ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 70.4MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:46:06,459 INFO L158 Benchmark]: RCFGBuilder took 587.60ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 50.5MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:46:06,459 INFO L158 Benchmark]: TraceAbstraction took 835097.87ms. Allocated memory was 117.4MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 49.8MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-27 20:46:06,462 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory was 103.8MB in the beginning and 103.6MB in the end (delta: 216.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.42ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 75.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.55ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.28ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 70.4MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 587.60ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 50.5MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 835097.87ms. Allocated memory was 117.4MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 49.8MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/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_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/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 32bit --witnessprinter.graph.data.programhash 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:46:08,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:46:09,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 20:46:09,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:46:09,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:46:09,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:46:09,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:46:09,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:46:09,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:46:09,080 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:46:09,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:46:09,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:46:09,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:46:09,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:46:09,081 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:46:09,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:46:09,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:46:09,083 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:46:09,084 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:46:09,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:46:09,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:46:09,084 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:46:09,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:46:09,084 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:46:09,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:46:09,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:46:09,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:46:09,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:46:09,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:46:09,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:46:09,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:46:09,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:46:09,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:46:09,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:46:09,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:46:09,087 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 338b6951ab628b0237aa41c64d1786e44f90130a76a8fd0978f750b3fe39d026 [2024-11-27 20:46:09,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:46:09,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:46:09,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:46:09,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:46:09,427 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:46:09,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-11-27 20:46:12,476 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/a6922a8e6/083cf6fd292a4ff487e32ffcf1a62cf9/FLAGdd428e44d [2024-11-27 20:46:12,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:46:12,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i [2024-11-27 20:46:12,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/a6922a8e6/083cf6fd292a4ff487e32ffcf1a62cf9/FLAGdd428e44d [2024-11-27 20:46:12,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/data/a6922a8e6/083cf6fd292a4ff487e32ffcf1a62cf9 [2024-11-27 20:46:12,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:46:12,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:46:12,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:46:12,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:46:12,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:46:12,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:46:12" (1/1) ... [2024-11-27 20:46:12,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359d5024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:12, skipping insertion in model container [2024-11-27 20:46:12,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:46:12" (1/1) ... [2024-11-27 20:46:12,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:46:13,348 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22460,22473] [2024-11-27 20:46:13,356 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22531,22544] [2024-11-27 20:46:13,357 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22605,22618] [2024-11-27 20:46:13,359 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22697,22710] [2024-11-27 20:46:13,360 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22774,22787] [2024-11-27 20:46:13,363 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22869,22882] [2024-11-27 20:46:13,364 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22946,22959] [2024-11-27 20:46:13,367 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23029,23042] [2024-11-27 20:46:13,368 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23124,23137] [2024-11-27 20:46:13,370 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23201,23214] [2024-11-27 20:46:13,371 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23284,23297] [2024-11-27 20:46:13,373 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23373,23386] [2024-11-27 20:46:13,375 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23459,23472] [2024-11-27 20:46:13,378 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23604,23617] [2024-11-27 20:46:13,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:46:13,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:46:13,464 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22460,22473] [2024-11-27 20:46:13,468 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22531,22544] [2024-11-27 20:46:13,469 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22605,22618] [2024-11-27 20:46:13,470 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22697,22710] [2024-11-27 20:46:13,474 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22774,22787] [2024-11-27 20:46:13,475 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22869,22882] [2024-11-27 20:46:13,475 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[22946,22959] [2024-11-27 20:46:13,476 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23029,23042] [2024-11-27 20:46:13,480 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23124,23137] [2024-11-27 20:46:13,481 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23201,23214] [2024-11-27 20:46:13,482 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23284,23297] [2024-11-27 20:46:13,482 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23373,23386] [2024-11-27 20:46:13,485 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23459,23472] [2024-11-27 20:46:13,487 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_b353e2e8-71be-4ff8-a5de-d5dce300d504/sv-benchmarks/c/forester-heap/dll-queue-2.i[23604,23617] [2024-11-27 20:46:13,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:46:13,524 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:46:13,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13 WrapperNode [2024-11-27 20:46:13,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:46:13,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:46:13,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:46:13,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:46:13,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,602 INFO L138 Inliner]: procedures = 122, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 206 [2024-11-27 20:46:13,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:46:13,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:46:13,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:46:13,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:46:13,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,651 INFO L175 MemorySlicer]: Split 31 memory accesses to 2 slices as follows [2, 29]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 9 writes are split as follows [0, 9]. [2024-11-27 20:46:13,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:46:13,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:46:13,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:46:13,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:46:13,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (1/1) ... [2024-11-27 20:46:13,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:46:13,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:13,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:46:13,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:46:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 20:46:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 20:46:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:46:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:46:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:46:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 20:46:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:46:13,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:46:13,880 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:46:13,882 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:46:14,314 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-27 20:46:14,315 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:46:14,329 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:46:14,329 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-27 20:46:14,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:46:14 BoogieIcfgContainer [2024-11-27 20:46:14,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:46:14,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:46:14,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:46:14,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:46:14,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:46:12" (1/3) ... [2024-11-27 20:46:14,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c82db41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:46:14, skipping insertion in model container [2024-11-27 20:46:14,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:46:13" (2/3) ... [2024-11-27 20:46:14,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c82db41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:46:14, skipping insertion in model container [2024-11-27 20:46:14,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:46:14" (3/3) ... [2024-11-27 20:46:14,355 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-queue-2.i [2024-11-27 20:46:14,370 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:46:14,372 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-queue-2.i that has 1 procedures, 87 locations, 1 initial locations, 17 loop locations, and 14 error locations. [2024-11-27 20:46:14,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:46:14,456 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;@cb629a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:46:14,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-27 20:46:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 86 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:46:14,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:14,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:46:14,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:14,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:14,477 INFO L85 PathProgramCache]: Analyzing trace with hash 28757443, now seen corresponding path program 1 times [2024-11-27 20:46:14,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:14,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099041888] [2024-11-27 20:46:14,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:14,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:14,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:14,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:14,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:46:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:14,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:46:14,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:14,648 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:14,648 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:14,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099041888] [2024-11-27 20:46:14,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099041888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:14,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:14,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:46:14,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708338361] [2024-11-27 20:46:14,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:14,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:46:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:14,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:46:14,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:46:14,677 INFO L87 Difference]: Start difference. First operand has 87 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 86 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:14,702 INFO L93 Difference]: Finished difference Result 172 states and 282 transitions. [2024-11-27 20:46:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:46:14,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 20:46:14,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:14,712 INFO L225 Difference]: With dead ends: 172 [2024-11-27 20:46:14,712 INFO L226 Difference]: Without dead ends: 81 [2024-11-27 20:46:14,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:46:14,720 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 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 [2024-11-27 20:46:14,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:46:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-27 20:46:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-27 20:46:14,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 80 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2024-11-27 20:46:14,758 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 5 [2024-11-27 20:46:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:14,759 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2024-11-27 20:46:14,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2024-11-27 20:46:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-27 20:46:14,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:14,760 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 20:46:14,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:46:14,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:14,965 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:14,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:14,965 INFO L85 PathProgramCache]: Analyzing trace with hash 889542441, now seen corresponding path program 1 times [2024-11-27 20:46:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:14,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507155592] [2024-11-27 20:46:14,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:14,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:14,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:14,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:14,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:46:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:15,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:46:15,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:15,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:15,087 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:15,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507155592] [2024-11-27 20:46:15,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507155592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:15,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:15,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:46:15,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583147045] [2024-11-27 20:46:15,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:15,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:46:15,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:15,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:46:15,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:15,090 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:15,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:15,143 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2024-11-27 20:46:15,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:46:15,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-27 20:46:15,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:15,144 INFO L225 Difference]: With dead ends: 81 [2024-11-27 20:46:15,145 INFO L226 Difference]: Without dead ends: 71 [2024-11-27 20:46:15,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:15,146 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 76 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:15,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 68 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:46:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-27 20:46:15,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-27 20:46:15,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 70 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:15,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2024-11-27 20:46:15,155 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 6 [2024-11-27 20:46:15,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:15,155 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2024-11-27 20:46:15,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:15,156 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2024-11-27 20:46:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:46:15,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:15,156 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:15,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:46:15,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:15,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:15,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:15,357 INFO L85 PathProgramCache]: Analyzing trace with hash 535764304, now seen corresponding path program 1 times [2024-11-27 20:46:15,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:15,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675484468] [2024-11-27 20:46:15,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:15,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:15,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:15,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:15,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:46:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:15,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:46:15,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:15,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-27 20:46:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:46:15,629 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-27 20:46:15,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-27 20:46:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:15,660 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:15,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:15,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675484468] [2024-11-27 20:46:15,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675484468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:15,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:15,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:46:15,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652816277] [2024-11-27 20:46:15,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:15,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:46:15,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:15,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:46:15,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:46:15,662 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:15,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:15,872 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2024-11-27 20:46:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:46:15,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:46:15,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:15,873 INFO L225 Difference]: With dead ends: 71 [2024-11-27 20:46:15,873 INFO L226 Difference]: Without dead ends: 69 [2024-11-27 20:46:15,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:46:15,874 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 119 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:15,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 92 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:46:15,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-27 20:46:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-27 20:46:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.278688524590164) internal successors, (78), 68 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:15,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2024-11-27 20:46:15,894 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 10 [2024-11-27 20:46:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:15,894 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2024-11-27 20:46:15,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:15,896 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2024-11-27 20:46:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 20:46:15,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:15,897 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:15,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:46:16,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:16,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:16,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:16,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1924295232, now seen corresponding path program 1 times [2024-11-27 20:46:16,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:16,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511161513] [2024-11-27 20:46:16,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:16,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:16,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:16,102 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:16,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:46:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:16,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:46:16,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:16,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:16,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:16,205 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:16,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511161513] [2024-11-27 20:46:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511161513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:16,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:16,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:46:16,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918981275] [2024-11-27 20:46:16,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:16,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:46:16,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:16,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:46:16,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:16,207 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:16,272 INFO L93 Difference]: Finished difference Result 156 states and 181 transitions. [2024-11-27 20:46:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:46:16,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 20:46:16,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:16,273 INFO L225 Difference]: With dead ends: 156 [2024-11-27 20:46:16,273 INFO L226 Difference]: Without dead ends: 89 [2024-11-27 20:46:16,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:16,275 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 18 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:16,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 137 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:46:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-27 20:46:16,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2024-11-27 20:46:16,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 77 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2024-11-27 20:46:16,292 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 12 [2024-11-27 20:46:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:16,296 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2024-11-27 20:46:16,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2024-11-27 20:46:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:46:16,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:16,297 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:16,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:46:16,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:16,497 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:16,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:16,498 INFO L85 PathProgramCache]: Analyzing trace with hash 570240528, now seen corresponding path program 1 times [2024-11-27 20:46:16,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071945080] [2024-11-27 20:46:16,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:16,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:16,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:16,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:16,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:46:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:16,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:46:16,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:16,599 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:16,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:16,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071945080] [2024-11-27 20:46:16,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071945080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:16,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:16,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:46:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036803714] [2024-11-27 20:46:16,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:16,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:46:16,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:16,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:46:16,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:16,601 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:16,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:16,646 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2024-11-27 20:46:16,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:46:16,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-27 20:46:16,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:16,648 INFO L225 Difference]: With dead ends: 81 [2024-11-27 20:46:16,648 INFO L226 Difference]: Without dead ends: 79 [2024-11-27 20:46:16,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:16,649 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:16,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:46:16,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-27 20:46:16,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-27 20:46:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 78 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2024-11-27 20:46:16,670 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 17 [2024-11-27 20:46:16,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:16,671 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2024-11-27 20:46:16,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2024-11-27 20:46:16,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:46:16,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:16,675 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:16,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:46:16,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:16,876 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:16,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash 570242450, now seen corresponding path program 1 times [2024-11-27 20:46:16,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:16,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483487622] [2024-11-27 20:46:16,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:16,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:16,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:16,878 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:16,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:46:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:16,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:46:16,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:17,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:17,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:17,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:17,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483487622] [2024-11-27 20:46:17,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483487622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:17,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:17,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:46:17,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171828115] [2024-11-27 20:46:17,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:17,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:46:17,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:17,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:46:17,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:46:17,034 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:17,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:17,163 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2024-11-27 20:46:17,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:46:17,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-27 20:46:17,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:17,165 INFO L225 Difference]: With dead ends: 99 [2024-11-27 20:46:17,165 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:46:17,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:46:17,166 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 9 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:17,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 202 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:46:17,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:46:17,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-27 20:46:17,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 66 states have (on average 1.2575757575757576) internal successors, (83), 73 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:17,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2024-11-27 20:46:17,188 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 17 [2024-11-27 20:46:17,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:17,189 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2024-11-27 20:46:17,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:17,189 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2024-11-27 20:46:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:46:17,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:17,190 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:17,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:46:17,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:17,391 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:17,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1713214930, now seen corresponding path program 1 times [2024-11-27 20:46:17,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:17,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77163044] [2024-11-27 20:46:17,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:17,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:17,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:17,394 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:17,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:46:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:17,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:46:17,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:17,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-27 20:46:17,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:46:17,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:46:17,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2024-11-27 20:46:17,678 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-27 20:46:17,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-27 20:46:17,724 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-11-27 20:46:17,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-11-27 20:46:17,803 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 20:46:17,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-11-27 20:46:17,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-27 20:46:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:18,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:46:18,335 INFO L349 Elim1Store]: treesize reduction 15, result has 70.0 percent of original size [2024-11-27 20:46:18,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 89 [2024-11-27 20:46:18,482 INFO L349 Elim1Store]: treesize reduction 54, result has 30.8 percent of original size [2024-11-27 20:46:18,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 143 treesize of output 130 [2024-11-27 20:46:18,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:18,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 138 [2024-11-27 20:46:18,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2024-11-27 20:46:19,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2024-11-27 20:46:19,184 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:19,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 132 [2024-11-27 20:46:19,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-27 20:46:19,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2024-11-27 20:46:19,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:19,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 55 [2024-11-27 20:46:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:20,206 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:20,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77163044] [2024-11-27 20:46:20,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77163044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:46:20,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:46:20,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-27 20:46:20,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524141389] [2024-11-27 20:46:20,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:46:20,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:46:20,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:20,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:46:20,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=48, Unknown=4, NotChecked=0, Total=72 [2024-11-27 20:46:20,209 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:21,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:21,413 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2024-11-27 20:46:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:46:21,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-27 20:46:21,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:21,416 INFO L225 Difference]: With dead ends: 150 [2024-11-27 20:46:21,417 INFO L226 Difference]: Without dead ends: 148 [2024-11-27 20:46:21,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=58, Unknown=5, NotChecked=0, Total=90 [2024-11-27 20:46:21,419 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 266 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:21,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 296 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:46:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-27 20:46:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 87. [2024-11-27 20:46:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.240506329113924) internal successors, (98), 86 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2024-11-27 20:46:21,447 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 20 [2024-11-27 20:46:21,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:21,448 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2024-11-27 20:46:21,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2024-11-27 20:46:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:46:21,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:21,449 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:21,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:46:21,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:21,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:21,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1259299224, now seen corresponding path program 1 times [2024-11-27 20:46:21,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:21,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592272631] [2024-11-27 20:46:21,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:21,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:21,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:21,655 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:21,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:46:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:21,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:46:21,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:21,793 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:21,793 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:21,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592272631] [2024-11-27 20:46:21,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592272631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:21,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:21,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:46:21,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242884251] [2024-11-27 20:46:21,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:21,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:46:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:21,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:46:21,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:21,795 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:21,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:21,892 INFO L93 Difference]: Finished difference Result 181 states and 209 transitions. [2024-11-27 20:46:21,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:46:21,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-27 20:46:21,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:21,893 INFO L225 Difference]: With dead ends: 181 [2024-11-27 20:46:21,893 INFO L226 Difference]: Without dead ends: 113 [2024-11-27 20:46:21,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:21,894 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 26 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:21,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 132 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:46:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-27 20:46:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2024-11-27 20:46:21,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 93 states have (on average 1.2043010752688172) internal successors, (112), 100 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2024-11-27 20:46:21,914 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 21 [2024-11-27 20:46:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:21,916 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2024-11-27 20:46:21,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2024-11-27 20:46:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 20:46:21,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:21,917 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:21,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:46:22,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:22,121 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:22,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash -61944223, now seen corresponding path program 1 times [2024-11-27 20:46:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:22,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496198590] [2024-11-27 20:46:22,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:22,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:22,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:22,136 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:22,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:46:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:22,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:46:22,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:46:22,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:46:22,302 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:22,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496198590] [2024-11-27 20:46:22,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496198590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:46:22,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:46:22,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:46:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803894603] [2024-11-27 20:46:22,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:46:22,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:46:22,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:22,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:46:22,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:22,303 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:22,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:46:22,410 INFO L93 Difference]: Finished difference Result 210 states and 240 transitions. [2024-11-27 20:46:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:46:22,411 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-27 20:46:22,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:46:22,411 INFO L225 Difference]: With dead ends: 210 [2024-11-27 20:46:22,411 INFO L226 Difference]: Without dead ends: 128 [2024-11-27 20:46:22,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:46:22,412 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 32 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:46:22,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 148 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:46:22,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-27 20:46:22,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 115. [2024-11-27 20:46:22,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 114 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2024-11-27 20:46:22,431 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 29 [2024-11-27 20:46:22,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:46:22,431 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2024-11-27 20:46:22,431 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:46:22,432 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2024-11-27 20:46:22,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-27 20:46:22,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:46:22,435 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:46:22,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:46:22,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:22,636 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2024-11-27 20:46:22,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:46:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2063940329, now seen corresponding path program 1 times [2024-11-27 20:46:22,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:46:22,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169574003] [2024-11-27 20:46:22,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:46:22,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:46:22,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:46:22,639 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:46:22,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b353e2e8-71be-4ff8-a5de-d5dce300d504/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:46:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:46:22,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:46:22,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:46:22,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-27 20:46:22,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-27 20:46:22,913 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-27 20:46:22,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 35 [2024-11-27 20:46:22,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:46:22,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-27 20:46:22,971 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-27 20:46:22,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-27 20:46:22,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2024-11-27 20:46:23,006 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:46:23,007 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:46:23,027 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-27 20:46:23,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 55 [2024-11-27 20:46:23,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2024-11-27 20:46:23,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 20:46:23,309 INFO L349 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2024-11-27 20:46:23,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 51 [2024-11-27 20:46:23,324 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-27 20:46:23,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 47 [2024-11-27 20:46:23,360 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-27 20:46:23,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 51 [2024-11-27 20:46:23,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:46:23,390 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-27 20:46:23,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 66 [2024-11-27 20:46:23,440 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-11-27 20:46:23,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2024-11-27 20:46:23,558 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-11-27 20:46:23,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 56 [2024-11-27 20:46:23,818 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-27 20:46:23,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23 [2024-11-27 20:46:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:46:23,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:46:23,909 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_368 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_368) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) is different from false [2024-11-27 20:46:23,940 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_366 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_368 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc3#1.base_18| (_ BitVec 32))) (or (not (= (_ bv0 32) (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset| |v_ULTIMATE.start_main_#t~malloc3#1.base_18|)) |v_ULTIMATE.start_main_#t~malloc3#1.base_18| v_ArrVal_366))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|) v_ArrVal_368)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_18|))))) is different from false [2024-11-27 20:46:24,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:24,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2024-11-27 20:46:24,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:24,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 193 [2024-11-27 20:46:24,386 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:24,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6840 treesize of output 5794 [2024-11-27 20:46:24,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:24,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1711 treesize of output 1431 [2024-11-27 20:46:24,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1370 treesize of output 1318 [2024-11-27 20:46:24,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:24,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1350 treesize of output 1258 [2024-11-27 20:46:25,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:46:25,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1204 treesize of output 1149 [2024-11-27 20:46:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2024-11-27 20:46:56,025 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:46:56,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169574003] [2024-11-27 20:46:56,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169574003] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:46:56,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:46:56,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2024-11-27 20:46:56,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468611920] [2024-11-27 20:46:56,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:46:56,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:46:56,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:46:56,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:46:56,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=99, Unknown=6, NotChecked=42, Total=182 [2024-11-27 20:46:56,027 INFO L87 Difference]: Start difference. First operand 115 states and 127 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)