./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fc74ae7e31589f228260101e75826f872a5ff2be20b18370840af309ca05fc6e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:07:07,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:07:08,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:07:08,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:07:08,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:07:08,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:07:08,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:07:08,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:07:08,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:07:08,126 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:07:08,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:07:08,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:07:08,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:07:08,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:07:08,128 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:07:08,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:07:08,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:07:08,129 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:07:08,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:07:08,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:07:08,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:07:08,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:07:08,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:07:08,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:07:08,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:07:08,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:07:08,131 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:07:08,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:07:08,131 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:07:08,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:07:08,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:07:08,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:07:08,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:08,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:07:08,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:07:08,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:07:08,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:07:08,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:08,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:07:08,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:07:08,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:07:08,135 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc74ae7e31589f228260101e75826f872a5ff2be20b18370840af309ca05fc6e [2024-11-23 23:07:08,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:07:08,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:07:08,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:07:08,550 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:07:08,550 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:07:08,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2024-11-23 23:07:12,010 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/data/722183502/2d931ce871f8458f9de5f6642d151634/FLAGc976a0bdc [2024-11-23 23:07:12,322 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:07:12,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2024-11-23 23:07:12,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/data/722183502/2d931ce871f8458f9de5f6642d151634/FLAGc976a0bdc [2024-11-23 23:07:12,353 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/data/722183502/2d931ce871f8458f9de5f6642d151634 [2024-11-23 23:07:12,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:07:12,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:07:12,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:07:12,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:07:12,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:07:12,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4ebf25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12, skipping insertion in model container [2024-11-23 23:07:12,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:07:12,665 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1123,1136] [2024-11-23 23:07:12,671 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1338,1351] [2024-11-23 23:07:12,676 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1654,1667] [2024-11-23 23:07:12,680 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1869,1882] [2024-11-23 23:07:12,683 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2402,2415] [2024-11-23 23:07:12,689 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2617,2630] [2024-11-23 23:07:12,695 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2919,2932] [2024-11-23 23:07:12,697 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3134,3147] [2024-11-23 23:07:12,701 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3404,3417] [2024-11-23 23:07:12,707 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3622,3635] [2024-11-23 23:07:12,713 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4106,4119] [2024-11-23 23:07:12,714 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4324,4337] [2024-11-23 23:07:12,720 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4820,4833] [2024-11-23 23:07:12,724 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5221,5234] [2024-11-23 23:07:12,726 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5439,5452] [2024-11-23 23:07:12,731 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5881,5894] [2024-11-23 23:07:12,734 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[6099,6112] [2024-11-23 23:07:12,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:07:12,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:07:12,778 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1123,1136] [2024-11-23 23:07:12,779 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1338,1351] [2024-11-23 23:07:12,783 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1654,1667] [2024-11-23 23:07:12,784 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1869,1882] [2024-11-23 23:07:12,786 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2402,2415] [2024-11-23 23:07:12,791 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2617,2630] [2024-11-23 23:07:12,793 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2919,2932] [2024-11-23 23:07:12,797 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3134,3147] [2024-11-23 23:07:12,799 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3404,3417] [2024-11-23 23:07:12,806 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3622,3635] [2024-11-23 23:07:12,809 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4106,4119] [2024-11-23 23:07:12,812 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4324,4337] [2024-11-23 23:07:12,817 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4820,4833] [2024-11-23 23:07:12,823 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5221,5234] [2024-11-23 23:07:12,825 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5439,5452] [2024-11-23 23:07:12,828 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5881,5894] [2024-11-23 23:07:12,829 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_1c3b30fe-1977-4c14-96f6-0fba87a0279d/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[6099,6112] [2024-11-23 23:07:12,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:07:12,859 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:07:12,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12 WrapperNode [2024-11-23 23:07:12,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:07:12,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:07:12,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:07:12,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:07:12,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,925 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 261 [2024-11-23 23:07:12,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:07:12,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:07:12,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:07:12,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:07:12,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,971 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:07:12,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,980 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:12,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:07:12,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:07:12,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:07:13,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:07:13,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (1/1) ... [2024-11-23 23:07:13,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:13,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:13,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:07:13,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:07:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:07:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:07:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:07:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:07:13,169 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:07:13,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:07:13,512 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-11-23 23:07:13,512 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:07:13,525 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:07:13,527 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:07:13,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:13 BoogieIcfgContainer [2024-11-23 23:07:13,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:07:13,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:07:13,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:07:13,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:07:13,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:07:12" (1/3) ... [2024-11-23 23:07:13,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0de912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:13, skipping insertion in model container [2024-11-23 23:07:13,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:12" (2/3) ... [2024-11-23 23:07:13,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0de912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:13, skipping insertion in model container [2024-11-23 23:07:13,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:13" (3/3) ... [2024-11-23 23:07:13,547 INFO L128 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+nlh-reducer.c [2024-11-23 23:07:13,566 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:07:13,568 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG apache-get-tag.i.v+nlh-reducer.c that has 1 procedures, 71 locations, 1 initial locations, 0 loop locations, and 17 error locations. [2024-11-23 23:07:13,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:07:13,675 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;@5e9088, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:07:13,675 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-23 23:07:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 53 states have (on average 1.849056603773585) internal successors, (98), 70 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) [2024-11-23 23:07:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-23 23:07:13,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:13,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:13,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:13,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash 123971630, now seen corresponding path program 1 times [2024-11-23 23:07:13,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:13,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91620038] [2024-11-23 23:07:13,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:14,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:14,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91620038] [2024-11-23 23:07:14,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91620038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:14,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:14,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:14,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178206745] [2024-11-23 23:07:14,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:14,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:14,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:14,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:14,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:14,245 INFO L87 Difference]: Start difference. First operand has 71 states, 53 states have (on average 1.849056603773585) internal successors, (98), 70 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) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:14,454 INFO L93 Difference]: Finished difference Result 83 states and 111 transitions. [2024-11-23 23:07:14,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:14,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-23 23:07:14,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:14,468 INFO L225 Difference]: With dead ends: 83 [2024-11-23 23:07:14,469 INFO L226 Difference]: Without dead ends: 73 [2024-11-23 23:07:14,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:14,480 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 10 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:14,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 184 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-23 23:07:14,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2024-11-23 23:07:14,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 64 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2024-11-23 23:07:14,526 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 8 [2024-11-23 23:07:14,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:14,527 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2024-11-23 23:07:14,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2024-11-23 23:07:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-23 23:07:14,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:14,528 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:14,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:07:14,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:14,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash 120336139, now seen corresponding path program 1 times [2024-11-23 23:07:14,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:14,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298495127] [2024-11-23 23:07:14,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:14,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298495127] [2024-11-23 23:07:14,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298495127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:14,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:14,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:14,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597120421] [2024-11-23 23:07:14,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:14,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:14,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:14,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:14,715 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:14,857 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2024-11-23 23:07:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:14,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-23 23:07:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:14,859 INFO L225 Difference]: With dead ends: 65 [2024-11-23 23:07:14,859 INFO L226 Difference]: Without dead ends: 63 [2024-11-23 23:07:14,860 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 [2024-11-23 23:07:14,861 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:14,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 90 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-23 23:07:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-23 23:07:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 62 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) [2024-11-23 23:07:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2024-11-23 23:07:14,875 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 8 [2024-11-23 23:07:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:14,875 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2024-11-23 23:07:14,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2024-11-23 23:07:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-23 23:07:14,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:14,877 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:14,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:07:14,878 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:14,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash -564542931, now seen corresponding path program 1 times [2024-11-23 23:07:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:14,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846695265] [2024-11-23 23:07:14,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:14,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:15,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:15,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846695265] [2024-11-23 23:07:15,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846695265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:15,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:15,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:15,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218615732] [2024-11-23 23:07:15,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:15,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:15,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:15,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:15,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:15,046 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:15,152 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2024-11-23 23:07:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:15,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-11-23 23:07:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:15,154 INFO L225 Difference]: With dead ends: 69 [2024-11-23 23:07:15,155 INFO L226 Difference]: Without dead ends: 67 [2024-11-23 23:07:15,155 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 [2024-11-23 23:07:15,156 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 4 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:15,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 155 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-23 23:07:15,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2024-11-23 23:07:15,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 65 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2024-11-23 23:07:15,169 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 9 [2024-11-23 23:07:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:15,172 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2024-11-23 23:07:15,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2024-11-23 23:07:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-23 23:07:15,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:15,173 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:15,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:07:15,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:15,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:15,174 INFO L85 PathProgramCache]: Analyzing trace with hash -429055130, now seen corresponding path program 1 times [2024-11-23 23:07:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:15,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100006784] [2024-11-23 23:07:15,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:15,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:15,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:15,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:15,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100006784] [2024-11-23 23:07:15,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100006784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:15,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:15,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:15,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043021850] [2024-11-23 23:07:15,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:15,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:15,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:15,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:15,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:15,339 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:15,494 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2024-11-23 23:07:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:15,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2024-11-23 23:07:15,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:15,496 INFO L225 Difference]: With dead ends: 67 [2024-11-23 23:07:15,496 INFO L226 Difference]: Without dead ends: 65 [2024-11-23 23:07:15,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:15,497 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 44 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:15,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 123 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-23 23:07:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2024-11-23 23:07:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.36) internal successors, (68), 63 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2024-11-23 23:07:15,504 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 11 [2024-11-23 23:07:15,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:15,504 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2024-11-23 23:07:15,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,504 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2024-11-23 23:07:15,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-23 23:07:15,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:15,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:15,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:07:15,505 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:15,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:15,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1359750351, now seen corresponding path program 1 times [2024-11-23 23:07:15,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:15,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735381793] [2024-11-23 23:07:15,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:15,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:15,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:15,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735381793] [2024-11-23 23:07:15,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735381793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:15,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:15,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:15,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954338405] [2024-11-23 23:07:15,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:15,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:15,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:15,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:15,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:15,637 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:15,784 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2024-11-23 23:07:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2024-11-23 23:07:15,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:15,786 INFO L225 Difference]: With dead ends: 65 [2024-11-23 23:07:15,786 INFO L226 Difference]: Without dead ends: 63 [2024-11-23 23:07:15,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:15,787 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 42 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:15,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 117 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:15,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-23 23:07:15,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2024-11-23 23:07:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.346938775510204) internal successors, (66), 61 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2024-11-23 23:07:15,800 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 11 [2024-11-23 23:07:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:15,800 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2024-11-23 23:07:15,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2024-11-23 23:07:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 23:07:15,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:15,801 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:15,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:07:15,801 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:15,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:15,806 INFO L85 PathProgramCache]: Analyzing trace with hash -415802953, now seen corresponding path program 1 times [2024-11-23 23:07:15,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:15,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508151153] [2024-11-23 23:07:15,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:15,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:15,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:15,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:15,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508151153] [2024-11-23 23:07:15,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508151153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:15,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:15,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:15,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760261514] [2024-11-23 23:07:15,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:15,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:15,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:15,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:15,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:15,937 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-11-23 23:07:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:15,998 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2024-11-23 23:07:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2024-11-23 23:07:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:15,999 INFO L225 Difference]: With dead ends: 63 [2024-11-23 23:07:16,000 INFO L226 Difference]: Without dead ends: 59 [2024-11-23 23:07:16,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:16,001 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 130 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 [2024-11-23 23:07:16,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 130 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-23 23:07:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2024-11-23 23:07:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 57 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2024-11-23 23:07:16,008 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 12 [2024-11-23 23:07:16,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:16,011 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2024-11-23 23:07:16,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-11-23 23:07:16,011 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-11-23 23:07:16,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 23:07:16,012 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:16,012 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:16,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:07:16,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:16,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:16,013 INFO L85 PathProgramCache]: Analyzing trace with hash -415312395, now seen corresponding path program 1 times [2024-11-23 23:07:16,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:16,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539760209] [2024-11-23 23:07:16,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:16,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:16,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:16,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539760209] [2024-11-23 23:07:16,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539760209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:16,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:16,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:16,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346452840] [2024-11-23 23:07:16,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:16,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:16,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:16,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:16,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:16,113 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-11-23 23:07:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:16,218 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2024-11-23 23:07:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:16,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2024-11-23 23:07:16,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:16,219 INFO L225 Difference]: With dead ends: 59 [2024-11-23 23:07:16,219 INFO L226 Difference]: Without dead ends: 57 [2024-11-23 23:07:16,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:16,220 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:16,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 103 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:16,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-23 23:07:16,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2024-11-23 23:07:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2024-11-23 23:07:16,229 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 12 [2024-11-23 23:07:16,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:16,233 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2024-11-23 23:07:16,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-11-23 23:07:16,233 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2024-11-23 23:07:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 23:07:16,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:16,234 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:16,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:07:16,234 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:16,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:16,235 INFO L85 PathProgramCache]: Analyzing trace with hash 797416153, now seen corresponding path program 1 times [2024-11-23 23:07:16,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:16,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413526863] [2024-11-23 23:07:16,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:16,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:16,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:16,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413526863] [2024-11-23 23:07:16,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413526863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:16,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782355648] [2024-11-23 23:07:16,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:16,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:16,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:16,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:16,315 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-11-23 23:07:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:16,373 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2024-11-23 23:07:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:16,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2024-11-23 23:07:16,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:16,374 INFO L225 Difference]: With dead ends: 57 [2024-11-23 23:07:16,377 INFO L226 Difference]: Without dead ends: 53 [2024-11-23 23:07:16,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:16,378 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 9 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:16,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 116 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:16,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-23 23:07:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-11-23 23:07:16,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2024-11-23 23:07:16,387 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 12 [2024-11-23 23:07:16,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:16,387 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2024-11-23 23:07:16,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2024-11-23 23:07:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2024-11-23 23:07:16,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-23 23:07:16,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:16,388 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:16,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:07:16,388 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:16,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:16,389 INFO L85 PathProgramCache]: Analyzing trace with hash 10221853, now seen corresponding path program 1 times [2024-11-23 23:07:16,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:16,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303828295] [2024-11-23 23:07:16,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:16,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:16,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303828295] [2024-11-23 23:07:16,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303828295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:16,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:16,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687689157] [2024-11-23 23:07:16,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:16,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:16,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:16,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:16,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:16,652 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:16,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:16,795 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2024-11-23 23:07:16,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:07:16,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-11-23 23:07:16,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:16,798 INFO L225 Difference]: With dead ends: 85 [2024-11-23 23:07:16,800 INFO L226 Difference]: Without dead ends: 83 [2024-11-23 23:07:16,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:07:16,801 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 33 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:16,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 117 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:16,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-23 23:07:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 57. [2024-11-23 23:07:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 56 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2024-11-23 23:07:16,814 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 13 [2024-11-23 23:07:16,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:16,814 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2024-11-23 23:07:16,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2024-11-23 23:07:16,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-23 23:07:16,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:16,816 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:16,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:07:16,816 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:16,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1032848570, now seen corresponding path program 1 times [2024-11-23 23:07:16,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:16,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598864776] [2024-11-23 23:07:16,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:16,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:16,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:16,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598864776] [2024-11-23 23:07:16,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598864776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:16,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:16,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:16,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576184203] [2024-11-23 23:07:16,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:16,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:16,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:16,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:16,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:16,938 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:17,045 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2024-11-23 23:07:17,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:17,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-11-23 23:07:17,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:17,046 INFO L225 Difference]: With dead ends: 57 [2024-11-23 23:07:17,046 INFO L226 Difference]: Without dead ends: 55 [2024-11-23 23:07:17,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:17,048 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 34 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:17,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 89 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-23 23:07:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-23 23:07:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 54 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2024-11-23 23:07:17,052 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 13 [2024-11-23 23:07:17,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:17,052 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2024-11-23 23:07:17,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2024-11-23 23:07:17,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-23 23:07:17,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:17,054 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:17,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:07:17,054 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:17,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1031124666, now seen corresponding path program 1 times [2024-11-23 23:07:17,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:17,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849039599] [2024-11-23 23:07:17,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:17,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:17,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:17,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849039599] [2024-11-23 23:07:17,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849039599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:17,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:17,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:17,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303082675] [2024-11-23 23:07:17,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:17,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:17,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:17,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:17,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:17,140 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:17,246 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2024-11-23 23:07:17,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:17,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-11-23 23:07:17,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:17,248 INFO L225 Difference]: With dead ends: 55 [2024-11-23 23:07:17,248 INFO L226 Difference]: Without dead ends: 53 [2024-11-23 23:07:17,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:17,249 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 32 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:17,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 83 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-23 23:07:17,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-23 23:07:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.288888888888889) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2024-11-23 23:07:17,258 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2024-11-23 23:07:17,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:17,258 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2024-11-23 23:07:17,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2024-11-23 23:07:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-23 23:07:17,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:17,263 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:17,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:07:17,263 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:17,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:17,264 INFO L85 PathProgramCache]: Analyzing trace with hash 310078394, now seen corresponding path program 1 times [2024-11-23 23:07:17,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:17,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438339906] [2024-11-23 23:07:17,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:17,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:17,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:17,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:17,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438339906] [2024-11-23 23:07:17,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438339906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:17,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:17,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:17,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20992781] [2024-11-23 23:07:17,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:17,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:17,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:17,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:17,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:17,472 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:17,628 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2024-11-23 23:07:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:07:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2024-11-23 23:07:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:17,629 INFO L225 Difference]: With dead ends: 75 [2024-11-23 23:07:17,629 INFO L226 Difference]: Without dead ends: 73 [2024-11-23 23:07:17,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:07:17,630 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 23 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:17,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 127 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-23 23:07:17,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2024-11-23 23:07:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.288888888888889) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2024-11-23 23:07:17,637 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 14 [2024-11-23 23:07:17,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:17,637 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2024-11-23 23:07:17,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,638 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2024-11-23 23:07:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-23 23:07:17,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:17,639 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:17,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:07:17,640 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:17,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1953530500, now seen corresponding path program 1 times [2024-11-23 23:07:17,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:17,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353692172] [2024-11-23 23:07:17,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:17,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:17,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353692172] [2024-11-23 23:07:17,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353692172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:17,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:17,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:17,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600366670] [2024-11-23 23:07:17,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:17,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:17,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:17,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:17,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:17,853 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:17,971 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2024-11-23 23:07:17,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:07:17,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2024-11-23 23:07:17,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:17,972 INFO L225 Difference]: With dead ends: 73 [2024-11-23 23:07:17,972 INFO L226 Difference]: Without dead ends: 71 [2024-11-23 23:07:17,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:07:17,973 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 21 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:17,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 127 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-23 23:07:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 61. [2024-11-23 23:07:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 60 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2024-11-23 23:07:17,977 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 14 [2024-11-23 23:07:17,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:17,977 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2024-11-23 23:07:17,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:17,978 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2024-11-23 23:07:17,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-23 23:07:17,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:17,978 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:17,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:07:17,979 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:17,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:17,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1951983355, now seen corresponding path program 1 times [2024-11-23 23:07:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:17,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586208323] [2024-11-23 23:07:17,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:17,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:18,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:18,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586208323] [2024-11-23 23:07:18,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586208323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:18,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:18,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:07:18,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162408309] [2024-11-23 23:07:18,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:18,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:07:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:18,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:07:18,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:18,066 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:18,149 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2024-11-23 23:07:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:18,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-11-23 23:07:18,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:18,150 INFO L225 Difference]: With dead ends: 61 [2024-11-23 23:07:18,150 INFO L226 Difference]: Without dead ends: 59 [2024-11-23 23:07:18,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:18,151 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:18,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 77 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-23 23:07:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-23 23:07:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 58 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2024-11-23 23:07:18,161 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2024-11-23 23:07:18,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:18,162 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2024-11-23 23:07:18,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,162 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2024-11-23 23:07:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-23 23:07:18,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:18,163 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:18,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:07:18,163 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:18,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:18,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1900089420, now seen corresponding path program 1 times [2024-11-23 23:07:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:18,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805901939] [2024-11-23 23:07:18,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:18,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:18,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:18,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805901939] [2024-11-23 23:07:18,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805901939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:18,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:18,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:18,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899364469] [2024-11-23 23:07:18,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:18,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:18,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:18,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:18,322 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:18,423 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2024-11-23 23:07:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:07:18,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2024-11-23 23:07:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:18,425 INFO L225 Difference]: With dead ends: 70 [2024-11-23 23:07:18,425 INFO L226 Difference]: Without dead ends: 66 [2024-11-23 23:07:18,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:18,426 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 22 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:18,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 104 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:18,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-23 23:07:18,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2024-11-23 23:07:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 59 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) [2024-11-23 23:07:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2024-11-23 23:07:18,430 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 14 [2024-11-23 23:07:18,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:18,430 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2024-11-23 23:07:18,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2024-11-23 23:07:18,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-23 23:07:18,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:18,431 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:18,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:07:18,435 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:18,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash -381937728, now seen corresponding path program 1 times [2024-11-23 23:07:18,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:18,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744359200] [2024-11-23 23:07:18,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:18,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:18,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744359200] [2024-11-23 23:07:18,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744359200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:18,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:18,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:18,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028854584] [2024-11-23 23:07:18,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:18,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:18,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:18,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:18,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:18,581 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:18,690 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2024-11-23 23:07:18,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:07:18,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2024-11-23 23:07:18,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:18,691 INFO L225 Difference]: With dead ends: 66 [2024-11-23 23:07:18,691 INFO L226 Difference]: Without dead ends: 64 [2024-11-23 23:07:18,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:07:18,692 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:18,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 106 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:18,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-23 23:07:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-11-23 23:07:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 56 states have (on average 1.25) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2024-11-23 23:07:18,695 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 15 [2024-11-23 23:07:18,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:18,695 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2024-11-23 23:07:18,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2024-11-23 23:07:18,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-23 23:07:18,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:18,696 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:18,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:07:18,697 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:18,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:18,697 INFO L85 PathProgramCache]: Analyzing trace with hash -441974753, now seen corresponding path program 1 times [2024-11-23 23:07:18,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:18,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98508807] [2024-11-23 23:07:18,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:18,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:18,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:18,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98508807] [2024-11-23 23:07:18,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98508807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:18,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:18,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:18,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227650159] [2024-11-23 23:07:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:18,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:18,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:18,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:18,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:18,761 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:18,793 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2024-11-23 23:07:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:18,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-11-23 23:07:18,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:18,794 INFO L225 Difference]: With dead ends: 63 [2024-11-23 23:07:18,794 INFO L226 Difference]: Without dead ends: 61 [2024-11-23 23:07:18,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:18,795 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:18,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 70 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:07:18,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-23 23:07:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-23 23:07:18,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 60 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2024-11-23 23:07:18,797 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 16 [2024-11-23 23:07:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:18,798 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2024-11-23 23:07:18,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,798 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2024-11-23 23:07:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-23 23:07:18,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:18,799 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:18,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:07:18,799 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:18,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:18,799 INFO L85 PathProgramCache]: Analyzing trace with hash -816311340, now seen corresponding path program 1 times [2024-11-23 23:07:18,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:18,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875181382] [2024-11-23 23:07:18,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:18,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:18,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:18,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875181382] [2024-11-23 23:07:18,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875181382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:18,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:18,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:18,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462268874] [2024-11-23 23:07:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:18,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:18,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:18,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:18,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:18,860 INFO L87 Difference]: Start difference. First operand 61 states and 68 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) [2024-11-23 23:07:18,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:18,903 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2024-11-23 23:07:18,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:18,904 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 [2024-11-23 23:07:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:18,905 INFO L225 Difference]: With dead ends: 61 [2024-11-23 23:07:18,905 INFO L226 Difference]: Without dead ends: 57 [2024-11-23 23:07:18,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:18,905 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:18,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 86 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:07:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-23 23:07:18,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-23 23:07:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 56 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:18,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2024-11-23 23:07:18,908 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 17 [2024-11-23 23:07:18,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:18,909 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2024-11-23 23:07:18,909 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) [2024-11-23 23:07:18,909 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2024-11-23 23:07:18,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-23 23:07:18,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:18,909 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:18,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:07:18,910 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:18,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:18,910 INFO L85 PathProgramCache]: Analyzing trace with hash -508949322, now seen corresponding path program 1 times [2024-11-23 23:07:18,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:18,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870627066] [2024-11-23 23:07:18,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:18,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:19,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:19,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870627066] [2024-11-23 23:07:19,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870627066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:19,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135874329] [2024-11-23 23:07:19,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:19,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:19,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:19,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:19,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:07:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:19,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 23:07:19,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:19,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:07:19,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135874329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:07:19,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:07:19,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2024-11-23 23:07:19,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724842908] [2024-11-23 23:07:19,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:19,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:07:19,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:19,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:07:19,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:07:19,609 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:19,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:19,863 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2024-11-23 23:07:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:07:19,864 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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 18 [2024-11-23 23:07:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:19,864 INFO L225 Difference]: With dead ends: 83 [2024-11-23 23:07:19,864 INFO L226 Difference]: Without dead ends: 81 [2024-11-23 23:07:19,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:07:19,865 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 218 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:19,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 121 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:07:19,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-23 23:07:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 53. [2024-11-23 23:07:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2024-11-23 23:07:19,868 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 18 [2024-11-23 23:07:19,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:19,869 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2024-11-23 23:07:19,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2024-11-23 23:07:19,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-23 23:07:19,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:19,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:19,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:20,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:20,070 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:20,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash 479271318, now seen corresponding path program 1 times [2024-11-23 23:07:20,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731298919] [2024-11-23 23:07:20,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:20,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:20,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:20,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731298919] [2024-11-23 23:07:20,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731298919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:20,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:20,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:20,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539407232] [2024-11-23 23:07:20,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:20,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:20,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:20,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:20,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:20,190 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:20,268 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2024-11-23 23:07:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:20,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2024-11-23 23:07:20,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:20,269 INFO L225 Difference]: With dead ends: 53 [2024-11-23 23:07:20,269 INFO L226 Difference]: Without dead ends: 51 [2024-11-23 23:07:20,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:07:20,270 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 47 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:20,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 42 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-23 23:07:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2024-11-23 23:07:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 47 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-11-23 23:07:20,273 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 18 [2024-11-23 23:07:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:20,273 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-11-23 23:07:20,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,273 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-11-23 23:07:20,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 23:07:20,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:20,274 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:20,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 23:07:20,274 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:20,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:20,275 INFO L85 PathProgramCache]: Analyzing trace with hash 397067279, now seen corresponding path program 1 times [2024-11-23 23:07:20,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:20,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692571765] [2024-11-23 23:07:20,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:20,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:20,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692571765] [2024-11-23 23:07:20,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692571765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:20,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:20,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:20,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054206838] [2024-11-23 23:07:20,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:20,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:20,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:20,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:20,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:20,396 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:20,468 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2024-11-23 23:07:20,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:20,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2024-11-23 23:07:20,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:20,469 INFO L225 Difference]: With dead ends: 48 [2024-11-23 23:07:20,470 INFO L226 Difference]: Without dead ends: 46 [2024-11-23 23:07:20,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:07:20,470 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 60 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:20,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 35 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-23 23:07:20,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-11-23 23:07:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 42 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2024-11-23 23:07:20,473 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 19 [2024-11-23 23:07:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:20,474 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2024-11-23 23:07:20,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2024-11-23 23:07:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 23:07:20,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:20,474 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:20,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:07:20,475 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:20,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:20,475 INFO L85 PathProgramCache]: Analyzing trace with hash 450508359, now seen corresponding path program 1 times [2024-11-23 23:07:20,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:20,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230055291] [2024-11-23 23:07:20,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:20,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:20,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:20,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230055291] [2024-11-23 23:07:20,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230055291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:20,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:20,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:07:20,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418220799] [2024-11-23 23:07:20,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:20,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:07:20,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:20,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:07:20,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:07:20,607 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:20,675 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2024-11-23 23:07:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:20,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2024-11-23 23:07:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:20,676 INFO L225 Difference]: With dead ends: 43 [2024-11-23 23:07:20,676 INFO L226 Difference]: Without dead ends: 20 [2024-11-23 23:07:20,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:07:20,678 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 42 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:20,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 28 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-23 23:07:20,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-23 23:07:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2024-11-23 23:07:20,680 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 19 [2024-11-23 23:07:20,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:20,680 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2024-11-23 23:07:20,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:20,680 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2024-11-23 23:07:20,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 23:07:20,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:20,681 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:20,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 23:07:20,681 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-11-23 23:07:20,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1395641153, now seen corresponding path program 1 times [2024-11-23 23:07:20,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936135439] [2024-11-23 23:07:20,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:20,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:20,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:20,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936135439] [2024-11-23 23:07:20,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936135439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:20,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688498666] [2024-11-23 23:07:20,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:20,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:20,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:20,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:20,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:07:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:20,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 23:07:20,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:07:21,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:07:21,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688498666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:07:21,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:07:21,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2024-11-23 23:07:21,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095998609] [2024-11-23 23:07:21,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:21,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:07:21,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:21,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:07:21,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:07:21,274 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:21,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:21,391 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-11-23 23:07:21,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:07:21,391 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 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 19 [2024-11-23 23:07:21,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:21,391 INFO L225 Difference]: With dead ends: 31 [2024-11-23 23:07:21,391 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:07:21,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:07:21,393 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:21,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 32 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:07:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:07:21,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:07:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:07:21,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2024-11-23 23:07:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:21,394 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:07:21,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:07:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:07:21,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:07:21,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 17 remaining) [2024-11-23 23:07:21,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (15 of 17 remaining) [2024-11-23 23:07:21,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (14 of 17 remaining) [2024-11-23 23:07:21,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (13 of 17 remaining) [2024-11-23 23:07:21,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (12 of 17 remaining) [2024-11-23 23:07:21,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (11 of 17 remaining) [2024-11-23 23:07:21,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (10 of 17 remaining) [2024-11-23 23:07:21,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (9 of 17 remaining) [2024-11-23 23:07:21,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (8 of 17 remaining) [2024-11-23 23:07:21,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (7 of 17 remaining) [2024-11-23 23:07:21,399 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (6 of 17 remaining) [2024-11-23 23:07:21,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (5 of 17 remaining) [2024-11-23 23:07:21,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (4 of 17 remaining) [2024-11-23 23:07:21,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (3 of 17 remaining) [2024-11-23 23:07:21,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (2 of 17 remaining) [2024-11-23 23:07:21,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (1 of 17 remaining) [2024-11-23 23:07:21,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (0 of 17 remaining) [2024-11-23 23:07:21,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:07:21,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-23 23:07:21,607 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:21,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:07:21,613 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:07:21,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:07:21 BoogieIcfgContainer [2024-11-23 23:07:21,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:07:21,618 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:07:21,618 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:07:21,619 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:07:21,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:13" (3/4) ... [2024-11-23 23:07:21,621 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:07:21,632 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-23 23:07:21,633 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-23 23:07:21,633 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:07:21,633 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:07:21,732 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:07:21,732 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:07:21,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:07:21,733 INFO L158 Benchmark]: Toolchain (without parser) took 9374.43ms. Allocated memory was 167.8MB in the beginning and 343.9MB in the end (delta: 176.2MB). Free memory was 144.4MB in the beginning and 235.2MB in the end (delta: -90.8MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2024-11-23 23:07:21,733 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:07:21,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.96ms. Allocated memory was 167.8MB in the beginning and 117.4MB in the end (delta: -50.3MB). Free memory was 144.4MB in the beginning and 80.1MB in the end (delta: 64.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:07:21,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.92ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:07:21,734 INFO L158 Benchmark]: Boogie Preprocessor took 70.24ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:07:21,734 INFO L158 Benchmark]: RCFGBuilder took 531.66ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 59.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:07:21,735 INFO L158 Benchmark]: TraceAbstraction took 8085.35ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 59.1MB in the beginning and 241.8MB in the end (delta: -182.7MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2024-11-23 23:07:21,735 INFO L158 Benchmark]: Witness Printer took 114.09ms. Allocated memory is still 343.9MB. Free memory was 241.8MB in the beginning and 235.2MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:07:21,737 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.96ms. Allocated memory was 167.8MB in the beginning and 117.4MB in the end (delta: -50.3MB). Free memory was 144.4MB in the beginning and 80.1MB in the end (delta: 64.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.92ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.24ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 531.66ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 59.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8085.35ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 59.1MB in the beginning and 241.8MB in the end (delta: -182.7MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 114.09ms. Allocated memory is still 343.9MB. Free memory was 241.8MB in the beginning and 235.2MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 44]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 56]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 73]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 85]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 115]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 127]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 143]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 155]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 177]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 189]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 225]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 237]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 279]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 298]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 310]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 339]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 351]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 824 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 824 mSDsluCounter, 2262 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1515 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1692 IncrementalHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 747 mSDtfsCounter, 1692 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 99 SyntacticMatches, 4 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 111 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 366 ConstructedInterpolants, 0 QuantifiedInterpolants, 1534 SizeOfPredicates, 6 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 8/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 23:07:21,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c3b30fe-1977-4c14-96f6-0fba87a0279d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE