./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd --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 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:24:55,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:24:55,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:24:55,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:24:55,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:24:55,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:24:55,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:24:55,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:24:55,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:24:55,223 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:24:55,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:24:55,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:24:55,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:24:55,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:24:55,224 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:24:55,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:24:55,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:24:55,227 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:24:55,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:24:55,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:24:55,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:24:55,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:24:55,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:24:55,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:24:55,230 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:24:55,230 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:24:55,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:24:55,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:24:55,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:24:55,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:24:55,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:24:55,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:24:55,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:24:55,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:24:55,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:24:55,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:24:55,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:24:55,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:24:55,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:24:55,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:24:55,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:24:55,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:24:55,234 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_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd 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 -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2024-11-13 16:24:55,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:24:55,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:24:55,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:24:55,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:24:55,665 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:24:55,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i Unable to find full path for "g++" [2024-11-13 16:24:58,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:24:58,819 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:24:58,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-13 16:24:58,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/data/aad7c641a/15e31a5eb2df46b2bd3d1bf5134c5a79/FLAG5a4d1b25b [2024-11-13 16:24:58,870 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/data/aad7c641a/15e31a5eb2df46b2bd3d1bf5134c5a79 [2024-11-13 16:24:58,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:24:58,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:24:58,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:24:58,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:24:58,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:24:58,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:58" (1/1) ... [2024-11-13 16:24:58,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b589c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:58, skipping insertion in model container [2024-11-13 16:24:58,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:58" (1/1) ... [2024-11-13 16:24:58,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:24:59,506 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_b3849eb9-cc83-4628-ab5d-034aa9ff5079/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[33021,33034] [2024-11-13 16:24:59,732 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_b3849eb9-cc83-4628-ab5d-034aa9ff5079/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44124,44137] [2024-11-13 16:24:59,733 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_b3849eb9-cc83-4628-ab5d-034aa9ff5079/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44245,44258] [2024-11-13 16:24:59,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:24:59,765 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:24:59,815 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_b3849eb9-cc83-4628-ab5d-034aa9ff5079/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[33021,33034] [2024-11-13 16:24:59,972 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_b3849eb9-cc83-4628-ab5d-034aa9ff5079/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44124,44137] [2024-11-13 16:24:59,973 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_b3849eb9-cc83-4628-ab5d-034aa9ff5079/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44245,44258] [2024-11-13 16:24:59,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:25:00,036 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:25:00,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00 WrapperNode [2024-11-13 16:25:00,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:25:00,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:25:00,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:25:00,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:25:00,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,183 INFO L138 Inliner]: procedures = 176, calls = 269, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1388 [2024-11-13 16:25:00,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:25:00,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:25:00,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:25:00,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:25:00,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,206 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,296 INFO L175 MemorySlicer]: Split 253 memory accesses to 3 slices as follows [2, 217, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-13 16:25:00,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:25:00,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:25:00,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:25:00,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:25:00,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (1/1) ... [2024-11-13 16:25:00,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:25:00,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:00,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:25:00,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:25:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:25:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:25:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:25:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:25:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:25:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:25:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 16:25:00,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 16:25:00,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 16:25:00,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 16:25:00,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 16:25:00,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 16:25:00,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:25:00,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:25:00,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 16:25:00,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 16:25:00,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 16:25:00,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:25:00,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 16:25:00,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 16:25:00,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 16:25:00,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:25:00,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:25:00,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:25:00,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:25:00,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:25:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:25:00,820 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:25:00,822 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:25:02,984 INFO L? ?]: Removed 311 outVars from TransFormulas that were not future-live. [2024-11-13 16:25:02,984 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:25:03,007 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:25:03,007 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-13 16:25:03,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:25:03 BoogieIcfgContainer [2024-11-13 16:25:03,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:25:03,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:25:03,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:25:03,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:25:03,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:24:58" (1/3) ... [2024-11-13 16:25:03,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557ae162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:25:03, skipping insertion in model container [2024-11-13 16:25:03,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:25:00" (2/3) ... [2024-11-13 16:25:03,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557ae162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:25:03, skipping insertion in model container [2024-11-13 16:25:03,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:25:03" (3/3) ... [2024-11-13 16:25:03,023 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-1.i [2024-11-13 16:25:03,044 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:25:03,045 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test7-1.i that has 4 procedures, 403 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-13 16:25:03,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:25:03,128 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;@7add77f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:25:03,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:25:03,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 395 states, 388 states have (on average 1.6262886597938144) internal successors, (631), 390 states have internal predecessors, (631), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:25:03,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:03,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:03,146 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:03,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:03,150 INFO L85 PathProgramCache]: Analyzing trace with hash -415119352, now seen corresponding path program 1 times [2024-11-13 16:25:03,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214732468] [2024-11-13 16:25:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:03,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:03,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214732468] [2024-11-13 16:25:03,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214732468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:03,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:03,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:25:03,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765018392] [2024-11-13 16:25:03,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:03,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:25:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:03,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:25:03,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:25:03,385 INFO L87 Difference]: Start difference. First operand has 395 states, 388 states have (on average 1.6262886597938144) internal successors, (631), 390 states have internal predecessors, (631), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-13 16:25:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:03,476 INFO L93 Difference]: Finished difference Result 788 states and 1272 transitions. [2024-11-13 16:25:03,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:25:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2024-11-13 16:25:03,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:03,495 INFO L225 Difference]: With dead ends: 788 [2024-11-13 16:25:03,495 INFO L226 Difference]: Without dead ends: 391 [2024-11-13 16:25:03,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:25:03,509 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:03,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:25:03,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-13 16:25:03,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-13 16:25:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 385 states have (on average 1.4493506493506494) internal successors, (558), 386 states have internal predecessors, (558), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 564 transitions. [2024-11-13 16:25:03,582 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 564 transitions. Word has length 8 [2024-11-13 16:25:03,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:03,582 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 564 transitions. [2024-11-13 16:25:03,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-13 16:25:03,583 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 564 transitions. [2024-11-13 16:25:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:25:03,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:03,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:03,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:25:03,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:03,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:03,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1045889067, now seen corresponding path program 1 times [2024-11-13 16:25:03,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:03,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039658844] [2024-11-13 16:25:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:03,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:03,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:03,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039658844] [2024-11-13 16:25:03,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039658844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:03,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:03,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:25:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738485837] [2024-11-13 16:25:03,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:03,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:25:03,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:03,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:25:03,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:03,846 INFO L87 Difference]: Start difference. First operand 391 states and 564 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:25:04,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:04,086 INFO L93 Difference]: Finished difference Result 965 states and 1396 transitions. [2024-11-13 16:25:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:25:04,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-13 16:25:04,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:04,094 INFO L225 Difference]: With dead ends: 965 [2024-11-13 16:25:04,094 INFO L226 Difference]: Without dead ends: 775 [2024-11-13 16:25:04,095 INFO L431 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 [2024-11-13 16:25:04,098 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 548 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:04,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1629 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:25:04,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-13 16:25:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 393. [2024-11-13 16:25:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 387 states have (on average 1.4470284237726099) internal successors, (560), 388 states have internal predecessors, (560), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 566 transitions. [2024-11-13 16:25:04,133 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 566 transitions. Word has length 10 [2024-11-13 16:25:04,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:04,134 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 566 transitions. [2024-11-13 16:25:04,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:25:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 566 transitions. [2024-11-13 16:25:04,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 16:25:04,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:04,137 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:04,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:25:04,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:04,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:04,138 INFO L85 PathProgramCache]: Analyzing trace with hash -553457075, now seen corresponding path program 1 times [2024-11-13 16:25:04,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:04,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143588663] [2024-11-13 16:25:04,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:04,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:04,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:04,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143588663] [2024-11-13 16:25:04,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143588663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:04,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:04,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:25:04,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358636128] [2024-11-13 16:25:04,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:04,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:25:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:04,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:25:04,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:04,797 INFO L87 Difference]: Start difference. First operand 393 states and 566 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-13 16:25:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:04,940 INFO L93 Difference]: Finished difference Result 740 states and 1062 transitions. [2024-11-13 16:25:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:25:04,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 86 [2024-11-13 16:25:04,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:04,943 INFO L225 Difference]: With dead ends: 740 [2024-11-13 16:25:04,943 INFO L226 Difference]: Without dead ends: 351 [2024-11-13 16:25:04,944 INFO L431 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 [2024-11-13 16:25:04,945 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 30 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:04,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1367 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:25:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-13 16:25:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-13 16:25:04,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 345 states have (on average 1.4) internal successors, (483), 346 states have internal predecessors, (483), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 489 transitions. [2024-11-13 16:25:04,963 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 489 transitions. Word has length 86 [2024-11-13 16:25:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:04,963 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 489 transitions. [2024-11-13 16:25:04,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-13 16:25:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 489 transitions. [2024-11-13 16:25:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 16:25:04,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:04,967 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:04,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:25:04,967 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:04,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:04,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1018841, now seen corresponding path program 1 times [2024-11-13 16:25:04,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:04,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376815006] [2024-11-13 16:25:04,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:04,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:05,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:05,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376815006] [2024-11-13 16:25:05,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376815006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:05,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:05,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:25:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741442441] [2024-11-13 16:25:05,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:05,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:25:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:05,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:25:05,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:25:05,344 INFO L87 Difference]: Start difference. First operand 351 states and 489 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-13 16:25:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:05,509 INFO L93 Difference]: Finished difference Result 949 states and 1335 transitions. [2024-11-13 16:25:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:25:05,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-11-13 16:25:05,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:05,515 INFO L225 Difference]: With dead ends: 949 [2024-11-13 16:25:05,517 INFO L226 Difference]: Without dead ends: 602 [2024-11-13 16:25:05,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:25:05,519 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 295 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:05,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1124 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:25:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-13 16:25:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 598. [2024-11-13 16:25:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 592 states have (on average 1.4172297297297298) internal successors, (839), 593 states have internal predecessors, (839), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:05,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 845 transitions. [2024-11-13 16:25:05,563 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 845 transitions. Word has length 86 [2024-11-13 16:25:05,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:05,564 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 845 transitions. [2024-11-13 16:25:05,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-13 16:25:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 845 transitions. [2024-11-13 16:25:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 16:25:05,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:05,572 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:05,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:25:05,573 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:05,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1414336336, now seen corresponding path program 1 times [2024-11-13 16:25:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:05,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570644161] [2024-11-13 16:25:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:06,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:06,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:25:06,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:06,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570644161] [2024-11-13 16:25:06,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570644161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:06,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:06,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:25:06,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060262313] [2024-11-13 16:25:06,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:06,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:25:06,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:06,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:25:06,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:25:06,255 INFO L87 Difference]: Start difference. First operand 598 states and 845 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:06,757 INFO L93 Difference]: Finished difference Result 883 states and 1252 transitions. [2024-11-13 16:25:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:25:06,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2024-11-13 16:25:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:06,765 INFO L225 Difference]: With dead ends: 883 [2024-11-13 16:25:06,765 INFO L226 Difference]: Without dead ends: 879 [2024-11-13 16:25:06,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:25:06,768 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 461 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:06,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1879 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:25:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-13 16:25:06,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 600. [2024-11-13 16:25:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 594 states have (on average 1.4158249158249159) internal successors, (841), 595 states have internal predecessors, (841), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:06,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 847 transitions. [2024-11-13 16:25:06,811 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 847 transitions. Word has length 101 [2024-11-13 16:25:06,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:06,814 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 847 transitions. [2024-11-13 16:25:06,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 847 transitions. [2024-11-13 16:25:06,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 16:25:06,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:06,822 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:06,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:25:06,823 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:06,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1691831720, now seen corresponding path program 1 times [2024-11-13 16:25:06,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:06,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917824226] [2024-11-13 16:25:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:06,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:07,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:07,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:25:07,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:07,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917824226] [2024-11-13 16:25:07,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917824226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:07,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:07,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:25:07,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99247432] [2024-11-13 16:25:07,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:07,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:25:07,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:07,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:25:07,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:25:07,399 INFO L87 Difference]: Start difference. First operand 600 states and 847 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:07,830 INFO L93 Difference]: Finished difference Result 868 states and 1233 transitions. [2024-11-13 16:25:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:25:07,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-13 16:25:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:07,835 INFO L225 Difference]: With dead ends: 868 [2024-11-13 16:25:07,835 INFO L226 Difference]: Without dead ends: 519 [2024-11-13 16:25:07,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:25:07,837 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 36 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:07,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1417 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:25:07,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-13 16:25:07,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 516. [2024-11-13 16:25:07,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 510 states have (on average 1.3470588235294119) internal successors, (687), 511 states have internal predecessors, (687), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 693 transitions. [2024-11-13 16:25:07,863 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 693 transitions. Word has length 155 [2024-11-13 16:25:07,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:07,863 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 693 transitions. [2024-11-13 16:25:07,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 693 transitions. [2024-11-13 16:25:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 16:25:07,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:07,866 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:07,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:25:07,866 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:07,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:07,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1428329272, now seen corresponding path program 1 times [2024-11-13 16:25:07,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:07,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336482314] [2024-11-13 16:25:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:07,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:08,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:08,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:25:08,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:08,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336482314] [2024-11-13 16:25:08,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336482314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:08,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:08,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:25:08,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044145805] [2024-11-13 16:25:08,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:08,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:25:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:08,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:25:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:08,180 INFO L87 Difference]: Start difference. First operand 516 states and 693 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:08,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:08,592 INFO L93 Difference]: Finished difference Result 784 states and 1057 transitions. [2024-11-13 16:25:08,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:25:08,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-13 16:25:08,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:08,596 INFO L225 Difference]: With dead ends: 784 [2024-11-13 16:25:08,596 INFO L226 Difference]: Without dead ends: 519 [2024-11-13 16:25:08,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:08,597 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 5 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:08,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1080 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:25:08,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-13 16:25:08,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 516. [2024-11-13 16:25:08,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 510 states have (on average 1.3352941176470587) internal successors, (681), 511 states have internal predecessors, (681), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 687 transitions. [2024-11-13 16:25:08,621 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 687 transitions. Word has length 155 [2024-11-13 16:25:08,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:08,622 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 687 transitions. [2024-11-13 16:25:08,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:08,622 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 687 transitions. [2024-11-13 16:25:08,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 16:25:08,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:08,626 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:08,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:25:08,626 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:08,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:08,627 INFO L85 PathProgramCache]: Analyzing trace with hash 935261198, now seen corresponding path program 1 times [2024-11-13 16:25:08,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:08,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056451904] [2024-11-13 16:25:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:08,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:09,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:09,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:09,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:09,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056451904] [2024-11-13 16:25:09,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056451904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:09,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:09,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:25:09,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688885616] [2024-11-13 16:25:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:09,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:25:09,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:09,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:25:09,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:25:09,019 INFO L87 Difference]: Start difference. First operand 516 states and 687 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:09,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:09,709 INFO L93 Difference]: Finished difference Result 1289 states and 1719 transitions. [2024-11-13 16:25:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:25:09,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 155 [2024-11-13 16:25:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:09,717 INFO L225 Difference]: With dead ends: 1289 [2024-11-13 16:25:09,718 INFO L226 Difference]: Without dead ends: 864 [2024-11-13 16:25:09,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:25:09,722 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 1337 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:09,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 1534 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 16:25:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-13 16:25:09,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 655. [2024-11-13 16:25:09,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 649 states have (on average 1.3359013867488443) internal successors, (867), 650 states have internal predecessors, (867), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:25:09,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 873 transitions. [2024-11-13 16:25:09,761 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 873 transitions. Word has length 155 [2024-11-13 16:25:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:09,761 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 873 transitions. [2024-11-13 16:25:09,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 873 transitions. [2024-11-13 16:25:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-13 16:25:09,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:09,765 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:09,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:25:09,766 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:09,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash -15311328, now seen corresponding path program 1 times [2024-11-13 16:25:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:09,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862283109] [2024-11-13 16:25:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:09,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:10,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:10,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:10,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862283109] [2024-11-13 16:25:10,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862283109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:25:10,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813346065] [2024-11-13 16:25:10,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:10,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:10,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:10,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:25:10,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:25:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:11,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:25:11,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:25:11,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:25:11,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-13 16:25:11,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:25:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:11,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:25:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:12,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813346065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:25:12,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:25:12,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 12 [2024-11-13 16:25:12,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074280000] [2024-11-13 16:25:12,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:25:12,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:25:12,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:12,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:25:12,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:25:12,110 INFO L87 Difference]: Start difference. First operand 655 states and 873 transitions. Second operand has 12 states, 12 states have (on average 27.25) internal successors, (327), 11 states have internal predecessors, (327), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:25:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:12,873 INFO L93 Difference]: Finished difference Result 2935 states and 3920 transitions. [2024-11-13 16:25:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 16:25:12,874 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 27.25) internal successors, (327), 11 states have internal predecessors, (327), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 165 [2024-11-13 16:25:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:12,884 INFO L225 Difference]: With dead ends: 2935 [2024-11-13 16:25:12,885 INFO L226 Difference]: Without dead ends: 2528 [2024-11-13 16:25:12,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 327 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:25:12,887 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 1654 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:12,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 3827 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:25:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2024-11-13 16:25:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1002. [2024-11-13 16:25:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 992 states have (on average 1.3346774193548387) internal successors, (1324), 993 states have internal predecessors, (1324), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:25:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1336 transitions. [2024-11-13 16:25:12,958 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1336 transitions. Word has length 165 [2024-11-13 16:25:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:12,958 INFO L471 AbstractCegarLoop]: Abstraction has 1002 states and 1336 transitions. [2024-11-13 16:25:12,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 27.25) internal successors, (327), 11 states have internal predecessors, (327), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:25:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1336 transitions. [2024-11-13 16:25:12,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-13 16:25:12,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:12,965 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:12,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:25:13,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:13,169 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:13,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:13,170 INFO L85 PathProgramCache]: Analyzing trace with hash 180332204, now seen corresponding path program 1 times [2024-11-13 16:25:13,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:13,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142228482] [2024-11-13 16:25:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:13,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:18,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:18,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:18,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:18,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142228482] [2024-11-13 16:25:18,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142228482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:25:18,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297660603] [2024-11-13 16:25:18,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:18,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:18,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:18,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:25:18,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:25:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:18,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:25:18,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:25:18,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:25:19,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-13 16:25:19,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:19,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:19,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:19,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:25:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:19,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:25:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:20,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297660603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:25:20,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:25:20,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 21 [2024-11-13 16:25:20,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611450493] [2024-11-13 16:25:20,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:25:20,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 16:25:20,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:20,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 16:25:20,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2024-11-13 16:25:20,640 INFO L87 Difference]: Start difference. First operand 1002 states and 1336 transitions. Second operand has 21 states, 21 states have (on average 37.57142857142857) internal successors, (789), 20 states have internal predecessors, (789), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:25:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:22,054 INFO L93 Difference]: Finished difference Result 6223 states and 8321 transitions. [2024-11-13 16:25:22,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 16:25:22,056 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 37.57142857142857) internal successors, (789), 20 states have internal predecessors, (789), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 393 [2024-11-13 16:25:22,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:22,080 INFO L225 Difference]: With dead ends: 6223 [2024-11-13 16:25:22,080 INFO L226 Difference]: Without dead ends: 5816 [2024-11-13 16:25:22,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 782 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2024-11-13 16:25:22,084 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 5742 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5762 SdHoareTripleChecker+Valid, 5819 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:22,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5762 Valid, 5819 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 16:25:22,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5816 states. [2024-11-13 16:25:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5816 to 1866. [2024-11-13 16:25:22,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1850 states have (on average 1.335135135135135) internal successors, (2470), 1851 states have internal predecessors, (2470), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 16:25:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2494 transitions. [2024-11-13 16:25:22,210 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2494 transitions. Word has length 393 [2024-11-13 16:25:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:22,211 INFO L471 AbstractCegarLoop]: Abstraction has 1866 states and 2494 transitions. [2024-11-13 16:25:22,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 37.57142857142857) internal successors, (789), 20 states have internal predecessors, (789), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:25:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2494 transitions. [2024-11-13 16:25:22,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-13 16:25:22,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:22,238 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:22,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:25:22,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:22,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:22,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1530735164, now seen corresponding path program 2 times [2024-11-13 16:25:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:22,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417286243] [2024-11-13 16:25:22,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:22,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:36,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:36,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:36,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417286243] [2024-11-13 16:25:36,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417286243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:25:36,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132038665] [2024-11-13 16:25:36,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:25:36,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:36,667 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:25:36,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:25:37,528 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:25:37,528 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:25:37,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 16:25:37,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:25:37,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:25:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-13 16:25:38,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:25:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132038665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:38,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:25:38,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [26] total 33 [2024-11-13 16:25:38,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532603908] [2024-11-13 16:25:38,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:38,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:25:38,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:25:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=796, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 16:25:38,642 INFO L87 Difference]: Start difference. First operand 1866 states and 2494 transitions. Second operand has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:39,936 INFO L93 Difference]: Finished difference Result 2438 states and 3253 transitions. [2024-11-13 16:25:39,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:25:39,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 849 [2024-11-13 16:25:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:39,948 INFO L225 Difference]: With dead ends: 2438 [2024-11-13 16:25:39,948 INFO L226 Difference]: Without dead ends: 2034 [2024-11-13 16:25:39,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 849 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 16:25:39,951 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 380 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:39,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 2561 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 16:25:39,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2024-11-13 16:25:40,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1901. [2024-11-13 16:25:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1885 states have (on average 1.3294429708222812) internal successors, (2506), 1886 states have internal predecessors, (2506), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 16:25:40,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2530 transitions. [2024-11-13 16:25:40,037 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2530 transitions. Word has length 849 [2024-11-13 16:25:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:40,039 INFO L471 AbstractCegarLoop]: Abstraction has 1901 states and 2530 transitions. [2024-11-13 16:25:40,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2530 transitions. [2024-11-13 16:25:40,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-13 16:25:40,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:40,064 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:40,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 16:25:40,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:40,269 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:25:40,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:40,270 INFO L85 PathProgramCache]: Analyzing trace with hash -21648843, now seen corresponding path program 1 times [2024-11-13 16:25:40,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:40,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92018086] [2024-11-13 16:25:40,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:40,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:52,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:52,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:52,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:52,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92018086] [2024-11-13 16:25:52,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92018086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:25:52,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355896734] [2024-11-13 16:25:52,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:52,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:52,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:52,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:25:52,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:25:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:53,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 16:25:53,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:25:53,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:25:54,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-13 16:25:54,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:54,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:54,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:54,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:54,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:55,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:55,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:55,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:55,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:55,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:25:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:55,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:25:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:57,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355896734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:25:57,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:25:57,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 15, 14] total 39 [2024-11-13 16:25:57,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800253893] [2024-11-13 16:25:57,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:25:57,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-13 16:25:57,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:57,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-13 16:25:57,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=572, Invalid=910, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 16:25:57,257 INFO L87 Difference]: Start difference. First operand 1901 states and 2530 transitions. Second operand has 39 states, 39 states have (on average 43.94871794871795) internal successors, (1714), 38 states have internal predecessors, (1714), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:26:00,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:26:00,387 INFO L93 Difference]: Finished difference Result 12834 states and 17158 transitions. [2024-11-13 16:26:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-13 16:26:00,390 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 43.94871794871795) internal successors, (1714), 38 states have internal predecessors, (1714), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 850 [2024-11-13 16:26:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:26:00,440 INFO L225 Difference]: With dead ends: 12834 [2024-11-13 16:26:00,440 INFO L226 Difference]: Without dead ends: 12392 [2024-11-13 16:26:00,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1745 GetRequests, 1692 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=877, Invalid=1775, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 16:26:00,516 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 15190 mSDsluCounter, 10120 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15234 SdHoareTripleChecker+Valid, 10546 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:26:00,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15234 Valid, 10546 Invalid, 566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 16:26:00,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12392 states. [2024-11-13 16:26:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12392 to 3629. [2024-11-13 16:26:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3601 states have (on average 1.3324076645376284) internal successors, (4798), 3602 states have internal predecessors, (4798), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 16:26:00,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 4846 transitions. [2024-11-13 16:26:00,950 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 4846 transitions. Word has length 850 [2024-11-13 16:26:00,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:26:00,952 INFO L471 AbstractCegarLoop]: Abstraction has 3629 states and 4846 transitions. [2024-11-13 16:26:00,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 43.94871794871795) internal successors, (1714), 38 states have internal predecessors, (1714), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 16:26:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 4846 transitions. [2024-11-13 16:26:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1763 [2024-11-13 16:26:00,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:26:00,988 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:26:01,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 16:26:01,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:26:01,190 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:26:01,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:26:01,191 INFO L85 PathProgramCache]: Analyzing trace with hash -504129019, now seen corresponding path program 2 times [2024-11-13 16:26:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:26:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470910835] [2024-11-13 16:26:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:26:01,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:26:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:27:13,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:27:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:27:13,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:27:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:27:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 17558 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:27:13,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:27:13,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470910835] [2024-11-13 16:27:13,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470910835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:27:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888230636] [2024-11-13 16:27:13,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:27:13,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:27:13,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:27:13,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:27:13,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:27:15,030 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:27:15,030 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:27:15,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 16:27:15,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:27:47,100 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 30 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:05,200 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:16,894 WARN L286 SmtUtils]: Spent 11.69s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:28,909 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:41,160 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:53,178 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:09,418 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:21,448 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:39,111 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:51,126 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:58,498 WARN L286 SmtUtils]: Spent 7.37s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:30:10,662 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:30:22,680 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:30:43,334 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:30:57,503 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:31:09,531 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:31:27,682 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:31:39,701 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:31:56,870 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:32:08,887 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:32:14,472 WARN L286 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:32:30,570 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:32:42,585 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:32:59,703 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:33:11,721 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:33:28,566 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:33:40,597 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:34:01,329 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:34:13,349 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:34:30,819 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:34:42,836 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:35:03,306 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:35:15,323 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:35:31,718 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:35:42,546 WARN L286 SmtUtils]: Spent 10.83s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:35:51,178 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse9 (* (- 1) |c_ULTIMATE.start_main_~_hf_hashv~0#1|)) (.cse4 (mod (+ 2690382803 |c_ULTIMATE.start_main_~_hf_hashv~0#1|) 4294967296)) (.cse11 (* 4294967295 |c_ULTIMATE.start_main_~_hf_hashv~0#1|)) (.cse15 (* 16777215 |c_ULTIMATE.start_main_~_hf_hashv~0#1|))) (or (exists ((v_z_32 Int)) (and (exists ((v_y_32 Int)) (let ((.cse13 (* 16777217 v_z_32)) (.cse14 (* v_y_32 4294967296))) (let ((.cse16 (+ .cse13 .cse14))) (and (exists ((v_z_10 Int)) (and (<= 0 v_z_10) (<= v_z_10 255) (exists ((v_z_13 Int)) (let ((.cse12 (mod (+ (* 16711680 v_z_10) 14384614 .cse15 (* v_z_13 16776960)) 16777216))) (and (exists ((v_y_19 Int)) (let ((.cse3 (* v_z_32 281474976710655)) (.cse10 (* .cse12 16777215)) (.cse5 (* v_y_32 72057589742960640))) (let ((.cse1 (* v_y_19 16777216)) (.cse0 (+ .cse3 .cse10 .cse5))) (and (<= .cse0 (+ .cse1 562949919866880)) (exists ((v_y_27 Int)) (let ((.cse6 (* v_y_27 16777216)) (.cse2 (mod (+ (* v_y_27 4278190080) .cse11 4276993779) 4294967296))) (and (<= 4294967296 (+ .cse2 v_z_32)) (= (+ .cse3 .cse4 .cse5 .cse6) 4294967296) (exists ((v_y_26 Int)) (let ((.cse8 (div (+ .cse9 (* v_z_10 (- 65536)) (* v_z_13 (- 256)) .cse10 (- 562941365879322)) 16777216)) (.cse7 (* v_y_26 256))) (and (<= (+ v_y_19 v_y_27 .cse7) .cse8) (= (+ 1099511627776 (* v_z_32 281474976710399) (* v_y_26 4294967296) .cse5 .cse6) (* .cse2 256)) (<= .cse8 (+ v_y_19 v_y_27 255 .cse7)))))))) (<= (+ .cse1 562949919866625) .cse0))))) (<= 16777216 (+ .cse12 .cse13 .cse14)) (<= 0 v_z_13) (<= v_z_13 255)))))) (<= .cse16 16777215) (<= 0 .cse16))))) (<= 0 v_z_32) (<= v_z_32 4294967295))) (exists ((v_z_32 Int)) (and (<= 0 v_z_32) (<= v_z_32 4294967295) (exists ((v_y_32 Int)) (let ((.cse18 (* 16777217 v_z_32)) (.cse19 (* v_y_32 4294967296))) (let ((.cse29 (+ .cse18 .cse19))) (and (exists ((v_z_10 Int)) (and (exists ((v_z_13 Int)) (let ((.cse17 (mod (+ (* 16711680 v_z_10) 14384614 .cse15 (* v_z_13 16776960)) 16777216))) (and (<= 16777216 (+ .cse17 .cse18 .cse19)) (<= 0 v_z_13) (exists ((v_y_19 Int)) (let ((.cse28 (* v_z_32 281474976710655)) (.cse27 (* .cse17 16777215)) (.cse23 (* v_y_32 72057589742960640))) (let ((.cse21 (* v_y_19 16777216)) (.cse20 (+ .cse28 .cse27 .cse23))) (and (<= .cse20 (+ .cse21 562949919866880)) (exists ((v_y_27 Int)) (let ((.cse22 (mod (+ (* v_y_27 4278190080) .cse11 4276993779) 4294967296)) (.cse24 (* v_y_27 16777216))) (and (<= (+ .cse22 v_z_32) 4294967295) (exists ((v_y_26 Int)) (let ((.cse26 (div (+ .cse9 (* v_z_10 (- 65536)) (* v_z_13 (- 256)) .cse27 (- 562941365879322)) 16777216)) (.cse25 (* v_y_26 256))) (and (= (+ (* v_z_32 281474976710399) (* v_y_26 4294967296) .cse23 .cse24) (* .cse22 256)) (<= (+ v_y_19 v_y_27 .cse25) .cse26) (<= .cse26 (+ v_y_19 v_y_27 255 .cse25))))) (= (+ .cse28 .cse4 .cse23 .cse24) 4294967296)))) (<= (+ .cse21 562949919866625) .cse20))))) (<= v_z_13 255)))) (<= 0 v_z_10) (<= v_z_10 255))) (<= .cse29 16777215) (<= 0 .cse29))))))))) is different from false [2024-11-13 16:35:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 16:35:51,570 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:35:51,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888230636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:35:51,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:35:51,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [50] total 61 [2024-11-13 16:35:51,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836386236] [2024-11-13 16:35:51,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:35:51,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 16:35:51,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:35:51,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 16:35:51,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=930, Invalid=2607, Unknown=7, NotChecked=116, Total=3660 [2024-11-13 16:35:51,574 INFO L87 Difference]: Start difference. First operand 3629 states and 4846 transitions. Second operand has 13 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:35:55,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:35:58,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:01,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:05,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:08,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:12,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:15,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:19,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:23,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:26,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:29,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:33,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:36,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:40,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:44,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:48,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:52,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:56,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:36:59,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:03,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:07,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:11,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:15,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:19,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:23,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:27,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:31,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:35,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:39,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:43,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:47,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:51,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:55,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:37:59,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:03,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:07,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:11,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:15,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:19,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:23,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:27,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:31,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:37,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:41,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-13 16:38:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:38:41,791 INFO L93 Difference]: Finished difference Result 4054 states and 5415 transitions. [2024-11-13 16:38:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:38:41,792 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1762 [2024-11-13 16:38:41,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:38:41,805 INFO L225 Difference]: With dead ends: 4054 [2024-11-13 16:38:41,805 INFO L226 Difference]: Without dead ends: 3650 [2024-11-13 16:38:41,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1824 GetRequests, 1765 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1785 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=930, Invalid=2607, Unknown=7, NotChecked=116, Total=3660 [2024-11-13 16:38:41,808 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 23 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 1 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 170.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:38:41,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3145 Invalid, 841 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 701 Invalid, 44 Unknown, 95 Unchecked, 170.1s Time] [2024-11-13 16:38:41,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2024-11-13 16:38:41,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 3644. [2024-11-13 16:38:41,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3616 states have (on average 1.331858407079646) internal successors, (4816), 3617 states have internal predecessors, (4816), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 16:38:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 4864 transitions. [2024-11-13 16:38:41,957 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 4864 transitions. Word has length 1762 [2024-11-13 16:38:41,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:38:41,960 INFO L471 AbstractCegarLoop]: Abstraction has 3644 states and 4864 transitions. [2024-11-13 16:38:41,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:38:41,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 4864 transitions. [2024-11-13 16:38:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1763 [2024-11-13 16:38:41,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:38:41,989 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:38:42,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:38:42,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3849eb9-cc83-4628-ab5d-034aa9ff5079/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:38:42,190 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:38:42,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:38:42,190 INFO L85 PathProgramCache]: Analyzing trace with hash -876643059, now seen corresponding path program 1 times [2024-11-13 16:38:42,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:38:42,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737207169] [2024-11-13 16:38:42,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:38:42,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:38:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:44,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:38:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:44,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:38:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 16:38:44,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:38:44,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737207169] [2024-11-13 16:38:44,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737207169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:38:44,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:38:44,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:38:44,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113583968] [2024-11-13 16:38:44,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:38:44,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:38:44,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:38:44,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:38:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:38:44,710 INFO L87 Difference]: Start difference. First operand 3644 states and 4864 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:38:45,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:38:45,204 INFO L93 Difference]: Finished difference Result 4036 states and 5412 transitions. [2024-11-13 16:38:45,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:38:45,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1762 [2024-11-13 16:38:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:38:45,217 INFO L225 Difference]: With dead ends: 4036 [2024-11-13 16:38:45,217 INFO L226 Difference]: Without dead ends: 3611 [2024-11-13 16:38:45,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:38:45,220 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 12 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:38:45,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1414 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 16:38:45,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2024-11-13 16:38:45,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 3605. [2024-11-13 16:38:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3577 states have (on average 1.3326810176125246) internal successors, (4767), 3578 states have internal predecessors, (4767), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 16:38:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 4815 transitions. [2024-11-13 16:38:45,375 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 4815 transitions. Word has length 1762 [2024-11-13 16:38:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:38:45,378 INFO L471 AbstractCegarLoop]: Abstraction has 3605 states and 4815 transitions. [2024-11-13 16:38:45,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:38:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 4815 transitions. [2024-11-13 16:38:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1764 [2024-11-13 16:38:45,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:38:45,406 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:38:45,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:38:45,406 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:38:45,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:38:45,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1419919961, now seen corresponding path program 1 times [2024-11-13 16:38:45,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:38:45,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052768960] [2024-11-13 16:38:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:38:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:38:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:51,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:38:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:51,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:38:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 16:38:51,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:38:51,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052768960] [2024-11-13 16:38:51,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052768960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:38:51,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:38:51,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:38:51,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575721668] [2024-11-13 16:38:51,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:38:51,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:38:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:38:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:38:51,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:38:51,751 INFO L87 Difference]: Start difference. First operand 3605 states and 4815 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:38:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:38:52,717 INFO L93 Difference]: Finished difference Result 4006 states and 5375 transitions. [2024-11-13 16:38:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:38:52,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1763 [2024-11-13 16:38:52,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:38:52,740 INFO L225 Difference]: With dead ends: 4006 [2024-11-13 16:38:52,740 INFO L226 Difference]: Without dead ends: 3620 [2024-11-13 16:38:52,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:38:52,743 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 7 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:38:52,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1920 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 16:38:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3620 states. [2024-11-13 16:38:52,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3620 to 3614. [2024-11-13 16:38:52,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 3586 states have (on average 1.3318460680423871) internal successors, (4776), 3587 states have internal predecessors, (4776), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 16:38:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 4824 transitions. [2024-11-13 16:38:52,957 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 4824 transitions. Word has length 1763 [2024-11-13 16:38:52,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:38:52,959 INFO L471 AbstractCegarLoop]: Abstraction has 3614 states and 4824 transitions. [2024-11-13 16:38:52,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:38:52,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 4824 transitions. [2024-11-13 16:38:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2024-11-13 16:38:53,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:38:53,018 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:38:53,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:38:53,018 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:38:53,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:38:53,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1082800212, now seen corresponding path program 1 times [2024-11-13 16:38:53,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:38:53,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556032425] [2024-11-13 16:38:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:38:53,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:38:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:58,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:38:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:58,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:38:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:38:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 16:38:58,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:38:58,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556032425] [2024-11-13 16:38:58,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556032425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:38:58,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:38:58,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:38:58,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163769926] [2024-11-13 16:38:58,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:38:58,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:38:58,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:38:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:38:58,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:38:58,961 INFO L87 Difference]: Start difference. First operand 3614 states and 4824 transitions. Second operand has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 8 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:39:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:39:00,129 INFO L93 Difference]: Finished difference Result 4030 states and 5402 transitions. [2024-11-13 16:39:00,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:39:00,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 8 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1764 [2024-11-13 16:39:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:39:00,144 INFO L225 Difference]: With dead ends: 4030 [2024-11-13 16:39:00,144 INFO L226 Difference]: Without dead ends: 3635 [2024-11-13 16:39:00,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:39:00,147 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 11 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:39:00,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2495 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 16:39:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2024-11-13 16:39:00,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3626. [2024-11-13 16:39:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3598 states have (on average 1.3315730961645358) internal successors, (4791), 3599 states have internal predecessors, (4791), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 16:39:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 4839 transitions. [2024-11-13 16:39:00,352 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 4839 transitions. Word has length 1764 [2024-11-13 16:39:00,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:39:00,354 INFO L471 AbstractCegarLoop]: Abstraction has 3626 states and 4839 transitions. [2024-11-13 16:39:00,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 8 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:39:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 4839 transitions. [2024-11-13 16:39:00,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2024-11-13 16:39:00,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:39:00,411 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:39:00,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 16:39:00,412 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:39:00,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:39:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1832154552, now seen corresponding path program 1 times [2024-11-13 16:39:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:39:00,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092022589] [2024-11-13 16:39:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:39:00,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:39:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat