./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya --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 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:44:35,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:44:36,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:44:36,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:44:36,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:44:36,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:44:36,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:44:36,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:44:36,063 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:44:36,064 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:44:36,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:44:36,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:44:36,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:44:36,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:44:36,067 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:44:36,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:44:36,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:44:36,069 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:44:36,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:44:36,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:44:36,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:44:36,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:44:36,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:44:36,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:44:36,074 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:44:36,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:44:36,075 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:44:36,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:44:36,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:44:36,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:44:36,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:44:36,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:44:36,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:44:36,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:44:36,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:44:36,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:44:36,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:44:36,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:44:36,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:44:36,078 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:44:36,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:44:36,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:44:36,079 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b [2023-11-29 04:44:36,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:44:36,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:44:36,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:44:36,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:44:36,315 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:44:36,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2023-11-29 04:44:39,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:44:39,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:44:39,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2023-11-29 04:44:39,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/data/2450ed439/b76084bc84d1489fa9ad79c87ff7ca90/FLAG26247c262 [2023-11-29 04:44:39,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/data/2450ed439/b76084bc84d1489fa9ad79c87ff7ca90 [2023-11-29 04:44:39,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:44:39,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:44:39,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:44:39,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:44:39,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:44:39,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:39,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5d0bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39, skipping insertion in model container [2023-11-29 04:44:39,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:39,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:44:39,566 WARN L240 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_76097d1f-f041-4753-8a3b-88d7d16edcbf/sv-benchmarks/c/eca-rers2012/Problem11_label24.c[7451,7464] [2023-11-29 04:44:39,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:44:39,779 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:44:39,812 WARN L240 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_76097d1f-f041-4753-8a3b-88d7d16edcbf/sv-benchmarks/c/eca-rers2012/Problem11_label24.c[7451,7464] [2023-11-29 04:44:39,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:44:39,948 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:44:39,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39 WrapperNode [2023-11-29 04:44:39,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:44:39,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:44:39,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:44:39,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:44:39,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:39,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,095 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2023-11-29 04:44:40,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:44:40,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:44:40,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:44:40,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:44:40,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,117 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,159 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:44:40,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:44:40,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:44:40,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:44:40,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:44:40,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (1/1) ... [2023-11-29 04:44:40,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:44:40,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:44:40,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:44:40,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:44:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:44:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:44:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:44:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:44:40,370 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:44:40,372 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:44:41,832 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:44:41,880 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:44:41,880 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:44:41,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:44:41 BoogieIcfgContainer [2023-11-29 04:44:41,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:44:41,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:44:41,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:44:41,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:44:41,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:44:39" (1/3) ... [2023-11-29 04:44:41,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:44:41, skipping insertion in model container [2023-11-29 04:44:41,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:44:39" (2/3) ... [2023-11-29 04:44:41,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:44:41, skipping insertion in model container [2023-11-29 04:44:41,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:44:41" (3/3) ... [2023-11-29 04:44:41,889 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label24.c [2023-11-29 04:44:41,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:44:41,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:44:41,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:44:41,971 INFO L357 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, mHoare=true, 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;@5dd0229a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:44:41,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:44:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 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) [2023-11-29 04:44:41,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 04:44:41,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:41,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:41,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:41,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:41,992 INFO L85 PathProgramCache]: Analyzing trace with hash 591959794, now seen corresponding path program 1 times [2023-11-29 04:44:42,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:42,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424543707] [2023-11-29 04:44:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:42,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:42,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:42,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424543707] [2023-11-29 04:44:42,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424543707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:42,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:42,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:44:42,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963077650] [2023-11-29 04:44:42,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:42,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:44:42,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:42,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:44:42,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:44:42,206 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-11-29 04:44:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:42,252 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2023-11-29 04:44:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:44:42,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2023-11-29 04:44:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:42,266 INFO L225 Difference]: With dead ends: 441 [2023-11-29 04:44:42,266 INFO L226 Difference]: Without dead ends: 219 [2023-11-29 04:44:42,269 INFO L412 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 [2023-11-29 04:44:42,273 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:42,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:44:42,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-29 04:44:42,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-29 04:44:42,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 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) [2023-11-29 04:44:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2023-11-29 04:44:42,324 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 50 [2023-11-29 04:44:42,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:42,324 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2023-11-29 04:44:42,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-11-29 04:44:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2023-11-29 04:44:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 04:44:42,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:42,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:42,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:44:42,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:42,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:42,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1978295999, now seen corresponding path program 1 times [2023-11-29 04:44:42,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:42,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050492835] [2023-11-29 04:44:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:42,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:42,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:42,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050492835] [2023-11-29 04:44:42,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050492835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:42,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:42,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:44:42,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032631167] [2023-11-29 04:44:42,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:42,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:42,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:42,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:42,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:42,508 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-11-29 04:44:43,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:43,393 INFO L93 Difference]: Finished difference Result 630 states and 1029 transitions. [2023-11-29 04:44:43,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:43,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2023-11-29 04:44:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:43,399 INFO L225 Difference]: With dead ends: 630 [2023-11-29 04:44:43,399 INFO L226 Difference]: Without dead ends: 412 [2023-11-29 04:44:43,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:43,402 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 157 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:43,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 144 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:44:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-11-29 04:44:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2023-11-29 04:44:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.4596577017114913) internal successors, (597), 409 states have internal predecessors, (597), 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) [2023-11-29 04:44:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 597 transitions. [2023-11-29 04:44:43,443 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 597 transitions. Word has length 50 [2023-11-29 04:44:43,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:43,444 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 597 transitions. [2023-11-29 04:44:43,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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) [2023-11-29 04:44:43,444 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 597 transitions. [2023-11-29 04:44:43,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 04:44:43,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:43,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:44:43,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:44:43,450 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:43,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:43,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1138781542, now seen corresponding path program 1 times [2023-11-29 04:44:43,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:43,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223589075] [2023-11-29 04:44:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:43,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:43,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:43,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223589075] [2023-11-29 04:44:43,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223589075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:43,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:43,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:44:43,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572859570] [2023-11-29 04:44:43,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:43,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:43,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:43,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:43,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:43,662 INFO L87 Difference]: Start difference. First operand 410 states and 597 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2023-11-29 04:44:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:44,484 INFO L93 Difference]: Finished difference Result 1208 states and 1764 transitions. [2023-11-29 04:44:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:44,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2023-11-29 04:44:44,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:44,489 INFO L225 Difference]: With dead ends: 1208 [2023-11-29 04:44:44,489 INFO L226 Difference]: Without dead ends: 799 [2023-11-29 04:44:44,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:44,493 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:44,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 118 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:44:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-11-29 04:44:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 786. [2023-11-29 04:44:44,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3859872611464967) internal successors, (1088), 785 states have internal predecessors, (1088), 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) [2023-11-29 04:44:44,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1088 transitions. [2023-11-29 04:44:44,521 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1088 transitions. Word has length 118 [2023-11-29 04:44:44,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:44,522 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1088 transitions. [2023-11-29 04:44:44,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2023-11-29 04:44:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1088 transitions. [2023-11-29 04:44:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 04:44:44,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:44,526 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:44:44,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:44:44,526 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:44,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:44,527 INFO L85 PathProgramCache]: Analyzing trace with hash 762617738, now seen corresponding path program 1 times [2023-11-29 04:44:44,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:44,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354813853] [2023-11-29 04:44:44,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:44,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:44,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:44,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354813853] [2023-11-29 04:44:44,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354813853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:44,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:44,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:44:44,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188746749] [2023-11-29 04:44:44,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:44,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:44,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:44,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:44,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:44,832 INFO L87 Difference]: Start difference. First operand 786 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-11-29 04:44:45,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:45,584 INFO L93 Difference]: Finished difference Result 1941 states and 2630 transitions. [2023-11-29 04:44:45,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:45,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 119 [2023-11-29 04:44:45,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:45,591 INFO L225 Difference]: With dead ends: 1941 [2023-11-29 04:44:45,591 INFO L226 Difference]: Without dead ends: 1156 [2023-11-29 04:44:45,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:45,593 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:45,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 188 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:44:45,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-11-29 04:44:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1155. [2023-11-29 04:44:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.2781629116117852) internal successors, (1475), 1154 states have internal predecessors, (1475), 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) [2023-11-29 04:44:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1475 transitions. [2023-11-29 04:44:45,623 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1475 transitions. Word has length 119 [2023-11-29 04:44:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:45,623 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1475 transitions. [2023-11-29 04:44:45,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-11-29 04:44:45,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1475 transitions. [2023-11-29 04:44:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 04:44:45,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:45,626 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:44:45,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:44:45,627 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:45,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:45,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1330280610, now seen corresponding path program 1 times [2023-11-29 04:44:45,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:45,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423730239] [2023-11-29 04:44:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:45,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:45,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:45,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423730239] [2023-11-29 04:44:45,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423730239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:45,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:45,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:44:45,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754949732] [2023-11-29 04:44:45,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:45,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:45,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:45,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:45,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:45,851 INFO L87 Difference]: Start difference. First operand 1155 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-11-29 04:44:46,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:46,734 INFO L93 Difference]: Finished difference Result 2690 states and 3514 transitions. [2023-11-29 04:44:46,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:46,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 162 [2023-11-29 04:44:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:46,745 INFO L225 Difference]: With dead ends: 2690 [2023-11-29 04:44:46,745 INFO L226 Difference]: Without dead ends: 1720 [2023-11-29 04:44:46,746 INFO L412 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 [2023-11-29 04:44:46,747 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 155 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:46,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 333 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:44:46,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2023-11-29 04:44:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1527. [2023-11-29 04:44:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 1.261467889908257) internal successors, (1925), 1526 states have internal predecessors, (1925), 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) [2023-11-29 04:44:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1925 transitions. [2023-11-29 04:44:46,789 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1925 transitions. Word has length 162 [2023-11-29 04:44:46,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:46,790 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 1925 transitions. [2023-11-29 04:44:46,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-11-29 04:44:46,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1925 transitions. [2023-11-29 04:44:46,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 04:44:46,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:46,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:44:46,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:44:46,793 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:46,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:46,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1168583027, now seen corresponding path program 1 times [2023-11-29 04:44:46,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:46,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499039321] [2023-11-29 04:44:46,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:46,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:46,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:46,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499039321] [2023-11-29 04:44:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499039321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:46,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:46,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:44:46,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142294374] [2023-11-29 04:44:46,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:46,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:46,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:46,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:46,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:46,953 INFO L87 Difference]: Start difference. First operand 1527 states and 1925 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 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) [2023-11-29 04:44:47,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:47,802 INFO L93 Difference]: Finished difference Result 4157 states and 5315 transitions. [2023-11-29 04:44:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:47,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 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 177 [2023-11-29 04:44:47,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:47,817 INFO L225 Difference]: With dead ends: 4157 [2023-11-29 04:44:47,817 INFO L226 Difference]: Without dead ends: 2631 [2023-11-29 04:44:47,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:47,820 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:47,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:44:47,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-11-29 04:44:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2447. [2023-11-29 04:44:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2446 states have (on average 1.2174979558462797) internal successors, (2978), 2446 states have internal predecessors, (2978), 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) [2023-11-29 04:44:47,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 2978 transitions. [2023-11-29 04:44:47,882 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 2978 transitions. Word has length 177 [2023-11-29 04:44:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:47,883 INFO L495 AbstractCegarLoop]: Abstraction has 2447 states and 2978 transitions. [2023-11-29 04:44:47,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 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) [2023-11-29 04:44:47,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 2978 transitions. [2023-11-29 04:44:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 04:44:47,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:47,887 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:44:47,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:44:47,888 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:47,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1296370387, now seen corresponding path program 1 times [2023-11-29 04:44:47,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:47,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353464116] [2023-11-29 04:44:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:47,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:48,117 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:44:48,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:48,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353464116] [2023-11-29 04:44:48,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353464116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:48,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:48,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:44:48,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821668162] [2023-11-29 04:44:48,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:48,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:48,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:48,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:48,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:48,120 INFO L87 Difference]: Start difference. First operand 2447 states and 2978 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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) [2023-11-29 04:44:48,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:48,933 INFO L93 Difference]: Finished difference Result 5451 states and 6619 transitions. [2023-11-29 04:44:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:48,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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 193 [2023-11-29 04:44:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:48,950 INFO L225 Difference]: With dead ends: 5451 [2023-11-29 04:44:48,950 INFO L226 Difference]: Without dead ends: 3005 [2023-11-29 04:44:48,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:48,954 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 75 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:48,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 152 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:44:48,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2023-11-29 04:44:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 3004. [2023-11-29 04:44:49,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 3003 states have (on average 1.2114552114552115) internal successors, (3638), 3003 states have internal predecessors, (3638), 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) [2023-11-29 04:44:49,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 3638 transitions. [2023-11-29 04:44:49,042 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 3638 transitions. Word has length 193 [2023-11-29 04:44:49,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:49,043 INFO L495 AbstractCegarLoop]: Abstraction has 3004 states and 3638 transitions. [2023-11-29 04:44:49,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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) [2023-11-29 04:44:49,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 3638 transitions. [2023-11-29 04:44:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-29 04:44:49,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:49,049 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:49,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:44:49,049 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:49,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2055939193, now seen corresponding path program 1 times [2023-11-29 04:44:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:49,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968328578] [2023-11-29 04:44:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:49,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:49,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968328578] [2023-11-29 04:44:49,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968328578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:49,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:49,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:44:49,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118735663] [2023-11-29 04:44:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:49,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:44:49,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:49,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:44:49,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:44:49,660 INFO L87 Difference]: Start difference. First operand 3004 states and 3638 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-11-29 04:44:51,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:51,279 INFO L93 Difference]: Finished difference Result 8782 states and 10794 transitions. [2023-11-29 04:44:51,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:44:51,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 231 [2023-11-29 04:44:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:51,310 INFO L225 Difference]: With dead ends: 8782 [2023-11-29 04:44:51,311 INFO L226 Difference]: Without dead ends: 5779 [2023-11-29 04:44:51,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:44:51,315 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 324 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:51,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 115 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:44:51,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2023-11-29 04:44:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5403. [2023-11-29 04:44:51,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5402 states have (on average 1.2121436504998149) internal successors, (6548), 5402 states have internal predecessors, (6548), 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) [2023-11-29 04:44:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 6548 transitions. [2023-11-29 04:44:51,446 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 6548 transitions. Word has length 231 [2023-11-29 04:44:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:51,446 INFO L495 AbstractCegarLoop]: Abstraction has 5403 states and 6548 transitions. [2023-11-29 04:44:51,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-11-29 04:44:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 6548 transitions. [2023-11-29 04:44:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-29 04:44:51,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:51,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:51,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:44:51,452 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:51,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:51,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1881508430, now seen corresponding path program 1 times [2023-11-29 04:44:51,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:51,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626487298] [2023-11-29 04:44:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:44:51,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:51,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626487298] [2023-11-29 04:44:51,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626487298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:51,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:51,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:44:51,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881802643] [2023-11-29 04:44:51,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:51,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:51,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:51,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:51,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:51,730 INFO L87 Difference]: Start difference. First operand 5403 states and 6548 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 04:44:52,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:52,677 INFO L93 Difference]: Finished difference Result 11918 states and 14622 transitions. [2023-11-29 04:44:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:52,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 232 [2023-11-29 04:44:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:52,706 INFO L225 Difference]: With dead ends: 11918 [2023-11-29 04:44:52,707 INFO L226 Difference]: Without dead ends: 6884 [2023-11-29 04:44:52,711 INFO L412 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 [2023-11-29 04:44:52,712 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 146 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:52,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 387 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:44:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2023-11-29 04:44:52,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 6691. [2023-11-29 04:44:52,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 6690 states have (on average 1.1928251121076232) internal successors, (7980), 6690 states have internal predecessors, (7980), 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) [2023-11-29 04:44:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 7980 transitions. [2023-11-29 04:44:52,825 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 7980 transitions. Word has length 232 [2023-11-29 04:44:52,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:52,826 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 7980 transitions. [2023-11-29 04:44:52,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 04:44:52,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 7980 transitions. [2023-11-29 04:44:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-29 04:44:52,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:52,830 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:52,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:44:52,830 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:52,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash -245237584, now seen corresponding path program 1 times [2023-11-29 04:44:52,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:52,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165851623] [2023-11-29 04:44:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:52,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:44:53,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:53,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165851623] [2023-11-29 04:44:53,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165851623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:53,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:53,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:44:53,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031813174] [2023-11-29 04:44:53,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:53,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:44:53,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:53,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:44:53,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:44:53,174 INFO L87 Difference]: Start difference. First operand 6691 states and 7980 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-29 04:44:54,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:54,541 INFO L93 Difference]: Finished difference Result 14860 states and 17818 transitions. [2023-11-29 04:44:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:44:54,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 3 states have internal predecessors, (242), 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 242 [2023-11-29 04:44:54,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:54,572 INFO L225 Difference]: With dead ends: 14860 [2023-11-29 04:44:54,573 INFO L226 Difference]: Without dead ends: 8538 [2023-11-29 04:44:54,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:44:54,578 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 239 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:54,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 142 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:44:54,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2023-11-29 04:44:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 8533. [2023-11-29 04:44:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8533 states, 8532 states have (on average 1.1736990154711673) internal successors, (10014), 8532 states have internal predecessors, (10014), 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) [2023-11-29 04:44:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8533 states to 8533 states and 10014 transitions. [2023-11-29 04:44:54,694 INFO L78 Accepts]: Start accepts. Automaton has 8533 states and 10014 transitions. Word has length 242 [2023-11-29 04:44:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:54,695 INFO L495 AbstractCegarLoop]: Abstraction has 8533 states and 10014 transitions. [2023-11-29 04:44:54,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-11-29 04:44:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand 8533 states and 10014 transitions. [2023-11-29 04:44:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-29 04:44:54,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:54,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:54,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 04:44:54,699 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:54,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1908228992, now seen corresponding path program 1 times [2023-11-29 04:44:54,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:54,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89155363] [2023-11-29 04:44:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:54,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-29 04:44:54,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:54,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89155363] [2023-11-29 04:44:54,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89155363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:54,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:54,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:44:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055985162] [2023-11-29 04:44:54,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:54,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:54,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:54,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:54,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:54,874 INFO L87 Difference]: Start difference. First operand 8533 states and 10014 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 04:44:55,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:55,653 INFO L93 Difference]: Finished difference Result 18739 states and 22055 transitions. [2023-11-29 04:44:55,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:55,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 252 [2023-11-29 04:44:55,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:55,670 INFO L225 Difference]: With dead ends: 18739 [2023-11-29 04:44:55,670 INFO L226 Difference]: Without dead ends: 10575 [2023-11-29 04:44:55,676 INFO L412 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 [2023-11-29 04:44:55,677 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 150 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:55,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 188 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:44:55,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2023-11-29 04:44:55,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 10189. [2023-11-29 04:44:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10188 states have (on average 1.1690223792697292) internal successors, (11910), 10188 states have internal predecessors, (11910), 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) [2023-11-29 04:44:55,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 11910 transitions. [2023-11-29 04:44:55,790 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 11910 transitions. Word has length 252 [2023-11-29 04:44:55,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:55,791 INFO L495 AbstractCegarLoop]: Abstraction has 10189 states and 11910 transitions. [2023-11-29 04:44:55,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 04:44:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 11910 transitions. [2023-11-29 04:44:55,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-11-29 04:44:55,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:55,797 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:55,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:44:55,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:55,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2119643857, now seen corresponding path program 1 times [2023-11-29 04:44:55,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:55,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963517794] [2023-11-29 04:44:55,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:55,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-29 04:44:56,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:56,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963517794] [2023-11-29 04:44:56,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963517794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:56,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:56,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:44:56,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786249640] [2023-11-29 04:44:56,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:56,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:56,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:56,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:56,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:56,050 INFO L87 Difference]: Start difference. First operand 10189 states and 11910 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2023-11-29 04:44:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:57,007 INFO L93 Difference]: Finished difference Result 20566 states and 24032 transitions. [2023-11-29 04:44:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:57,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 280 [2023-11-29 04:44:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:57,022 INFO L225 Difference]: With dead ends: 20566 [2023-11-29 04:44:57,022 INFO L226 Difference]: Without dead ends: 10562 [2023-11-29 04:44:57,031 INFO L412 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 [2023-11-29 04:44:57,031 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 150 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:57,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:44:57,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2023-11-29 04:44:57,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 10556. [2023-11-29 04:44:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10556 states, 10555 states have (on average 1.139933680720038) internal successors, (12032), 10555 states have internal predecessors, (12032), 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) [2023-11-29 04:44:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10556 states to 10556 states and 12032 transitions. [2023-11-29 04:44:57,227 INFO L78 Accepts]: Start accepts. Automaton has 10556 states and 12032 transitions. Word has length 280 [2023-11-29 04:44:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:57,228 INFO L495 AbstractCegarLoop]: Abstraction has 10556 states and 12032 transitions. [2023-11-29 04:44:57,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2023-11-29 04:44:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 10556 states and 12032 transitions. [2023-11-29 04:44:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-11-29 04:44:57,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:57,239 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:57,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:44:57,240 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:57,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 609765629, now seen corresponding path program 1 times [2023-11-29 04:44:57,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:57,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119503642] [2023-11-29 04:44:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:57,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:57,616 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 04:44:57,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:57,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119503642] [2023-11-29 04:44:57,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119503642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:57,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:57,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:44:57,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55131474] [2023-11-29 04:44:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:57,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:57,619 INFO L87 Difference]: Start difference. First operand 10556 states and 12032 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2023-11-29 04:44:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:58,419 INFO L93 Difference]: Finished difference Result 23885 states and 27409 transitions. [2023-11-29 04:44:58,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:58,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 313 [2023-11-29 04:44:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:58,437 INFO L225 Difference]: With dead ends: 23885 [2023-11-29 04:44:58,437 INFO L226 Difference]: Without dead ends: 13698 [2023-11-29 04:44:58,445 INFO L412 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 [2023-11-29 04:44:58,445 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 141 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:58,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 133 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:44:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13698 states. [2023-11-29 04:44:58,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13698 to 13693. [2023-11-29 04:44:58,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13693 states, 13692 states have (on average 1.1337277242185217) internal successors, (15523), 13692 states have internal predecessors, (15523), 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) [2023-11-29 04:44:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 15523 transitions. [2023-11-29 04:44:58,643 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 15523 transitions. Word has length 313 [2023-11-29 04:44:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:58,643 INFO L495 AbstractCegarLoop]: Abstraction has 13693 states and 15523 transitions. [2023-11-29 04:44:58,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2023-11-29 04:44:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 15523 transitions. [2023-11-29 04:44:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-11-29 04:44:58,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:58,657 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:44:58,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 04:44:58,657 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:58,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:58,658 INFO L85 PathProgramCache]: Analyzing trace with hash -891213812, now seen corresponding path program 1 times [2023-11-29 04:44:58,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:58,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557322155] [2023-11-29 04:44:58,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:58,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 04:44:59,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:59,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557322155] [2023-11-29 04:44:59,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557322155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:59,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:44:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:44:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034642904] [2023-11-29 04:44:59,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:59,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:44:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:44:59,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:44:59,044 INFO L87 Difference]: Start difference. First operand 13693 states and 15523 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-11-29 04:44:59,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:59,878 INFO L93 Difference]: Finished difference Result 30516 states and 34552 transitions. [2023-11-29 04:44:59,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:44:59,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 321 [2023-11-29 04:44:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:59,901 INFO L225 Difference]: With dead ends: 30516 [2023-11-29 04:44:59,901 INFO L226 Difference]: Without dead ends: 17192 [2023-11-29 04:44:59,910 INFO L412 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 [2023-11-29 04:44:59,911 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 155 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:59,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 71 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:44:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17192 states. [2023-11-29 04:45:00,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17192 to 17189. [2023-11-29 04:45:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17189 states, 17188 states have (on average 1.1226437049104026) internal successors, (19296), 17188 states have internal predecessors, (19296), 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) [2023-11-29 04:45:00,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17189 states to 17189 states and 19296 transitions. [2023-11-29 04:45:00,162 INFO L78 Accepts]: Start accepts. Automaton has 17189 states and 19296 transitions. Word has length 321 [2023-11-29 04:45:00,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:00,163 INFO L495 AbstractCegarLoop]: Abstraction has 17189 states and 19296 transitions. [2023-11-29 04:45:00,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-11-29 04:45:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 17189 states and 19296 transitions. [2023-11-29 04:45:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-29 04:45:00,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:00,173 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:00,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 04:45:00,173 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:00,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:00,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2099478148, now seen corresponding path program 1 times [2023-11-29 04:45:00,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:00,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125048157] [2023-11-29 04:45:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:00,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:45:01,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:01,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125048157] [2023-11-29 04:45:01,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125048157] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:45:01,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768728748] [2023-11-29 04:45:01,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:01,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:45:01,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:45:01,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:45:01,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:45:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:01,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:45:01,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:45:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 04:45:01,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:45:01,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768728748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:01,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:45:01,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-29 04:45:01,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556198416] [2023-11-29 04:45:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:01,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:01,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:01,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:45:01,556 INFO L87 Difference]: Start difference. First operand 17189 states and 19296 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-11-29 04:45:02,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:02,369 INFO L93 Difference]: Finished difference Result 35503 states and 40038 transitions. [2023-11-29 04:45:02,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:02,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 323 [2023-11-29 04:45:02,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:02,392 INFO L225 Difference]: With dead ends: 35503 [2023-11-29 04:45:02,392 INFO L226 Difference]: Without dead ends: 18683 [2023-11-29 04:45:02,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:45:02,403 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 137 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:02,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 356 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:45:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18683 states. [2023-11-29 04:45:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18683 to 18675. [2023-11-29 04:45:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18675 states, 18674 states have (on average 1.121184534647103) internal successors, (20937), 18674 states have internal predecessors, (20937), 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) [2023-11-29 04:45:02,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18675 states to 18675 states and 20937 transitions. [2023-11-29 04:45:02,613 INFO L78 Accepts]: Start accepts. Automaton has 18675 states and 20937 transitions. Word has length 323 [2023-11-29 04:45:02,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:02,614 INFO L495 AbstractCegarLoop]: Abstraction has 18675 states and 20937 transitions. [2023-11-29 04:45:02,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-11-29 04:45:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 18675 states and 20937 transitions. [2023-11-29 04:45:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-11-29 04:45:02,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:02,619 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:02,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 04:45:02,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:45:02,820 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:02,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:02,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1515679309, now seen corresponding path program 1 times [2023-11-29 04:45:02,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:02,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538957835] [2023-11-29 04:45:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:02,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-11-29 04:45:03,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:03,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538957835] [2023-11-29 04:45:03,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538957835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:03,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:03,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:03,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343735996] [2023-11-29 04:45:03,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:03,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:03,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:03,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:03,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:03,134 INFO L87 Difference]: Start difference. First operand 18675 states and 20937 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-29 04:45:03,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:03,807 INFO L93 Difference]: Finished difference Result 40108 states and 44935 transitions. [2023-11-29 04:45:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:03,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 325 [2023-11-29 04:45:03,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:03,824 INFO L225 Difference]: With dead ends: 40108 [2023-11-29 04:45:03,824 INFO L226 Difference]: Without dead ends: 21802 [2023-11-29 04:45:03,831 INFO L412 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 [2023-11-29 04:45:03,832 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 167 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:03,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 153 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:45:03,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21802 states. [2023-11-29 04:45:04,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21802 to 14438. [2023-11-29 04:45:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14438 states, 14437 states have (on average 1.1316062893953038) internal successors, (16337), 14437 states have internal predecessors, (16337), 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) [2023-11-29 04:45:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14438 states to 14438 states and 16337 transitions. [2023-11-29 04:45:04,036 INFO L78 Accepts]: Start accepts. Automaton has 14438 states and 16337 transitions. Word has length 325 [2023-11-29 04:45:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:04,037 INFO L495 AbstractCegarLoop]: Abstraction has 14438 states and 16337 transitions. [2023-11-29 04:45:04,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-29 04:45:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 14438 states and 16337 transitions. [2023-11-29 04:45:04,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-11-29 04:45:04,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:04,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:04,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 04:45:04,045 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:04,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:04,046 INFO L85 PathProgramCache]: Analyzing trace with hash 418456856, now seen corresponding path program 1 times [2023-11-29 04:45:04,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:04,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339075656] [2023-11-29 04:45:04,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:04,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-29 04:45:04,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:04,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339075656] [2023-11-29 04:45:04,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339075656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:04,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:04,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:45:04,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010946585] [2023-11-29 04:45:04,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:04,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:04,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:04,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:04,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:04,289 INFO L87 Difference]: Start difference. First operand 14438 states and 16337 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 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) [2023-11-29 04:45:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:04,714 INFO L93 Difference]: Finished difference Result 28499 states and 32285 transitions. [2023-11-29 04:45:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:04,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 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 332 [2023-11-29 04:45:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:04,725 INFO L225 Difference]: With dead ends: 28499 [2023-11-29 04:45:04,725 INFO L226 Difference]: Without dead ends: 14430 [2023-11-29 04:45:04,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:04,731 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:04,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 38 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:45:04,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14430 states. [2023-11-29 04:45:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14430 to 14427. [2023-11-29 04:45:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14426 states have (on average 1.1309441286565922) internal successors, (16315), 14426 states have internal predecessors, (16315), 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) [2023-11-29 04:45:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 16315 transitions. [2023-11-29 04:45:04,868 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 16315 transitions. Word has length 332 [2023-11-29 04:45:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:04,868 INFO L495 AbstractCegarLoop]: Abstraction has 14427 states and 16315 transitions. [2023-11-29 04:45:04,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 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) [2023-11-29 04:45:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 16315 transitions. [2023-11-29 04:45:04,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 04:45:04,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:04,875 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:04,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 04:45:04,876 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:04,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1811259153, now seen corresponding path program 1 times [2023-11-29 04:45:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:04,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139826189] [2023-11-29 04:45:04,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:04,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-29 04:45:05,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:05,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139826189] [2023-11-29 04:45:05,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139826189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:05,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:05,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:05,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644971549] [2023-11-29 04:45:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:05,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:05,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:05,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:05,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:05,216 INFO L87 Difference]: Start difference. First operand 14427 states and 16315 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-11-29 04:45:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:05,998 INFO L93 Difference]: Finished difference Result 32349 states and 36462 transitions. [2023-11-29 04:45:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:05,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 356 [2023-11-29 04:45:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:06,013 INFO L225 Difference]: With dead ends: 32349 [2023-11-29 04:45:06,013 INFO L226 Difference]: Without dead ends: 16447 [2023-11-29 04:45:06,023 INFO L412 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 [2023-11-29 04:45:06,024 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 150 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:06,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 306 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:45:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16447 states. [2023-11-29 04:45:06,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16447 to 14051. [2023-11-29 04:45:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14051 states, 14050 states have (on average 1.0952313167259786) internal successors, (15388), 14050 states have internal predecessors, (15388), 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) [2023-11-29 04:45:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 15388 transitions. [2023-11-29 04:45:06,184 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 15388 transitions. Word has length 356 [2023-11-29 04:45:06,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:06,184 INFO L495 AbstractCegarLoop]: Abstraction has 14051 states and 15388 transitions. [2023-11-29 04:45:06,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-11-29 04:45:06,185 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 15388 transitions. [2023-11-29 04:45:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 04:45:06,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:06,190 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:06,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 04:45:06,190 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:06,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash -494330591, now seen corresponding path program 1 times [2023-11-29 04:45:06,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:06,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115168652] [2023-11-29 04:45:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-29 04:45:06,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:06,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115168652] [2023-11-29 04:45:06,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115168652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:06,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:06,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:45:06,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082205450] [2023-11-29 04:45:06,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:06,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:45:06,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:06,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:45:06,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:06,726 INFO L87 Difference]: Start difference. First operand 14051 states and 15388 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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) [2023-11-29 04:45:07,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:07,879 INFO L93 Difference]: Finished difference Result 28840 states and 31558 transitions. [2023-11-29 04:45:07,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:45:07,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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 357 [2023-11-29 04:45:07,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:07,890 INFO L225 Difference]: With dead ends: 28840 [2023-11-29 04:45:07,890 INFO L226 Difference]: Without dead ends: 15158 [2023-11-29 04:45:07,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:07,896 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 301 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:07,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 115 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:45:07,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15158 states. [2023-11-29 04:45:08,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15158 to 14235. [2023-11-29 04:45:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14235 states, 14234 states have (on average 1.0942812982998456) internal successors, (15576), 14234 states have internal predecessors, (15576), 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) [2023-11-29 04:45:08,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14235 states to 14235 states and 15576 transitions. [2023-11-29 04:45:08,028 INFO L78 Accepts]: Start accepts. Automaton has 14235 states and 15576 transitions. Word has length 357 [2023-11-29 04:45:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:08,028 INFO L495 AbstractCegarLoop]: Abstraction has 14235 states and 15576 transitions. [2023-11-29 04:45:08,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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) [2023-11-29 04:45:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 14235 states and 15576 transitions. [2023-11-29 04:45:08,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-29 04:45:08,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:08,035 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:08,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 04:45:08,035 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:08,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:08,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1810272138, now seen corresponding path program 1 times [2023-11-29 04:45:08,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:08,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804998746] [2023-11-29 04:45:08,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:08,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 04:45:08,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:08,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804998746] [2023-11-29 04:45:08,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804998746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:08,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:08,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:08,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208185441] [2023-11-29 04:45:08,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:08,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:45:08,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:08,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:45:08,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:08,392 INFO L87 Difference]: Start difference. First operand 14235 states and 15576 transitions. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 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) [2023-11-29 04:45:09,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:09,524 INFO L93 Difference]: Finished difference Result 36218 states and 39626 transitions. [2023-11-29 04:45:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:45:09,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 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 371 [2023-11-29 04:45:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:09,539 INFO L225 Difference]: With dead ends: 36218 [2023-11-29 04:45:09,539 INFO L226 Difference]: Without dead ends: 21800 [2023-11-29 04:45:09,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:09,546 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 229 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:09,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 68 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:45:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21800 states. [2023-11-29 04:45:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21800 to 20505. [2023-11-29 04:45:09,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20505 states, 20504 states have (on average 1.0909090909090908) internal successors, (22368), 20504 states have internal predecessors, (22368), 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) [2023-11-29 04:45:09,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20505 states to 20505 states and 22368 transitions. [2023-11-29 04:45:09,737 INFO L78 Accepts]: Start accepts. Automaton has 20505 states and 22368 transitions. Word has length 371 [2023-11-29 04:45:09,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:09,737 INFO L495 AbstractCegarLoop]: Abstraction has 20505 states and 22368 transitions. [2023-11-29 04:45:09,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 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) [2023-11-29 04:45:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 20505 states and 22368 transitions. [2023-11-29 04:45:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-11-29 04:45:09,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:09,744 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:09,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 04:45:09,745 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:09,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:09,745 INFO L85 PathProgramCache]: Analyzing trace with hash -686072556, now seen corresponding path program 1 times [2023-11-29 04:45:09,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:09,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123812668] [2023-11-29 04:45:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:09,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-29 04:45:10,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123812668] [2023-11-29 04:45:10,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123812668] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:45:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259065071] [2023-11-29 04:45:10,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:10,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:45:10,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:45:10,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:45:10,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:45:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:10,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:45:10,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:45:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:45:11,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:45:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:45:14,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259065071] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:45:14,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:45:14,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2023-11-29 04:45:14,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735479508] [2023-11-29 04:45:14,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:45:14,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:45:14,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:14,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:45:14,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:45:14,834 INFO L87 Difference]: Start difference. First operand 20505 states and 22368 transitions. Second operand has 12 states, 12 states have (on average 76.0) internal successors, (912), 11 states have internal predecessors, (912), 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) [2023-11-29 04:45:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:22,119 INFO L93 Difference]: Finished difference Result 61383 states and 66612 transitions. [2023-11-29 04:45:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 04:45:22,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 76.0) internal successors, (912), 11 states have internal predecessors, (912), 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 388 [2023-11-29 04:45:22,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:22,151 INFO L225 Difference]: With dead ends: 61383 [2023-11-29 04:45:22,151 INFO L226 Difference]: Without dead ends: 40509 [2023-11-29 04:45:22,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=464, Invalid=1176, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 04:45:22,161 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 4568 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 7620 mSolverCounterSat, 1489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 9109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1489 IncrementalHoareTripleChecker+Valid, 7620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:22,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 205 Invalid, 9109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1489 Valid, 7620 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-29 04:45:22,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40509 states. [2023-11-29 04:45:22,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40509 to 35613. [2023-11-29 04:45:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35613 states, 35612 states have (on average 1.0764068291587106) internal successors, (38333), 35612 states have internal predecessors, (38333), 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) [2023-11-29 04:45:22,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35613 states to 35613 states and 38333 transitions. [2023-11-29 04:45:22,623 INFO L78 Accepts]: Start accepts. Automaton has 35613 states and 38333 transitions. Word has length 388 [2023-11-29 04:45:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:22,623 INFO L495 AbstractCegarLoop]: Abstraction has 35613 states and 38333 transitions. [2023-11-29 04:45:22,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 76.0) internal successors, (912), 11 states have internal predecessors, (912), 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) [2023-11-29 04:45:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 35613 states and 38333 transitions. [2023-11-29 04:45:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-11-29 04:45:22,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:22,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:22,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:45:22,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 04:45:22,832 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:22,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:22,833 INFO L85 PathProgramCache]: Analyzing trace with hash 46863823, now seen corresponding path program 1 times [2023-11-29 04:45:22,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:22,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858004538] [2023-11-29 04:45:22,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:22,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-11-29 04:45:23,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:23,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858004538] [2023-11-29 04:45:23,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858004538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:23,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:23,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:23,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528832891] [2023-11-29 04:45:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:23,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:45:23,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:23,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:45:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:23,322 INFO L87 Difference]: Start difference. First operand 35613 states and 38333 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-11-29 04:45:24,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:24,663 INFO L93 Difference]: Finished difference Result 72892 states and 78532 transitions. [2023-11-29 04:45:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:45:24,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 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 393 [2023-11-29 04:45:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:24,690 INFO L225 Difference]: With dead ends: 72892 [2023-11-29 04:45:24,690 INFO L226 Difference]: Without dead ends: 37648 [2023-11-29 04:45:24,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:24,704 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 223 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:24,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 95 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:45:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37648 states. [2023-11-29 04:45:25,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37648 to 33761. [2023-11-29 04:45:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 33760 states have (on average 1.0759774881516588) internal successors, (36325), 33760 states have internal predecessors, (36325), 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) [2023-11-29 04:45:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 36325 transitions. [2023-11-29 04:45:25,156 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 36325 transitions. Word has length 393 [2023-11-29 04:45:25,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:25,157 INFO L495 AbstractCegarLoop]: Abstraction has 33761 states and 36325 transitions. [2023-11-29 04:45:25,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-11-29 04:45:25,157 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 36325 transitions. [2023-11-29 04:45:25,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-11-29 04:45:25,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:25,167 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:45:25,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 04:45:25,167 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:25,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:25,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1096975318, now seen corresponding path program 1 times [2023-11-29 04:45:25,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:25,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471754336] [2023-11-29 04:45:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:25,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-11-29 04:45:25,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:25,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471754336] [2023-11-29 04:45:25,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471754336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:25,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:25,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459445499] [2023-11-29 04:45:25,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:25,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:25,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:25,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:25,583 INFO L87 Difference]: Start difference. First operand 33761 states and 36325 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-11-29 04:45:26,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:26,384 INFO L93 Difference]: Finished difference Result 69173 states and 74441 transitions. [2023-11-29 04:45:26,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:26,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 433 [2023-11-29 04:45:26,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:26,474 INFO L225 Difference]: With dead ends: 69173 [2023-11-29 04:45:26,474 INFO L226 Difference]: Without dead ends: 35781 [2023-11-29 04:45:26,481 INFO L412 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 [2023-11-29 04:45:26,481 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 156 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:26,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 313 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:45:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35781 states. [2023-11-29 04:45:26,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35781 to 29519. [2023-11-29 04:45:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29519 states, 29518 states have (on average 1.0707703773968427) internal successors, (31607), 29518 states have internal predecessors, (31607), 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) [2023-11-29 04:45:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29519 states to 29519 states and 31607 transitions. [2023-11-29 04:45:26,809 INFO L78 Accepts]: Start accepts. Automaton has 29519 states and 31607 transitions. Word has length 433 [2023-11-29 04:45:26,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:26,809 INFO L495 AbstractCegarLoop]: Abstraction has 29519 states and 31607 transitions. [2023-11-29 04:45:26,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-11-29 04:45:26,809 INFO L276 IsEmpty]: Start isEmpty. Operand 29519 states and 31607 transitions. [2023-11-29 04:45:26,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2023-11-29 04:45:26,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:26,817 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:26,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 04:45:26,818 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:26,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:26,818 INFO L85 PathProgramCache]: Analyzing trace with hash -554252170, now seen corresponding path program 1 times [2023-11-29 04:45:26,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:26,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023039945] [2023-11-29 04:45:26,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:26,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-29 04:45:27,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:27,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023039945] [2023-11-29 04:45:27,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023039945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:27,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:27,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:27,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159612149] [2023-11-29 04:45:27,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:27,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:27,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:27,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:27,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:27,287 INFO L87 Difference]: Start difference. First operand 29519 states and 31607 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-29 04:45:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:28,178 INFO L93 Difference]: Finished difference Result 57757 states and 61912 transitions. [2023-11-29 04:45:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 467 [2023-11-29 04:45:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:28,208 INFO L225 Difference]: With dead ends: 57757 [2023-11-29 04:45:28,208 INFO L226 Difference]: Without dead ends: 30815 [2023-11-29 04:45:28,221 INFO L412 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 [2023-11-29 04:45:28,222 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 133 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:28,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 109 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:45:28,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30815 states. [2023-11-29 04:45:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30815 to 29151. [2023-11-29 04:45:28,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29151 states, 29150 states have (on average 1.0702229845626072) internal successors, (31197), 29150 states have internal predecessors, (31197), 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) [2023-11-29 04:45:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29151 states to 29151 states and 31197 transitions. [2023-11-29 04:45:28,627 INFO L78 Accepts]: Start accepts. Automaton has 29151 states and 31197 transitions. Word has length 467 [2023-11-29 04:45:28,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:28,628 INFO L495 AbstractCegarLoop]: Abstraction has 29151 states and 31197 transitions. [2023-11-29 04:45:28,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-29 04:45:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 29151 states and 31197 transitions. [2023-11-29 04:45:28,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2023-11-29 04:45:28,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:28,638 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:28,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 04:45:28,638 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:28,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:28,639 INFO L85 PathProgramCache]: Analyzing trace with hash 134183705, now seen corresponding path program 1 times [2023-11-29 04:45:28,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:28,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059888699] [2023-11-29 04:45:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:28,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 269 proven. 132 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-11-29 04:45:29,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:29,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059888699] [2023-11-29 04:45:29,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059888699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:45:29,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592223845] [2023-11-29 04:45:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:29,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:45:29,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:45:29,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:45:29,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:45:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:29,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:45:29,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:45:29,665 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-11-29 04:45:29,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:45:29,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592223845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:29,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:45:29,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-29 04:45:29,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968201250] [2023-11-29 04:45:29,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:29,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:29,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:29,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:45:29,667 INFO L87 Difference]: Start difference. First operand 29151 states and 31197 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-29 04:45:30,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:30,382 INFO L93 Difference]: Finished difference Result 55909 states and 59880 transitions. [2023-11-29 04:45:30,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:30,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 471 [2023-11-29 04:45:30,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:30,403 INFO L225 Difference]: With dead ends: 55909 [2023-11-29 04:45:30,404 INFO L226 Difference]: Without dead ends: 28781 [2023-11-29 04:45:30,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:45:30,414 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 119 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:30,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 161 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:45:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28781 states. [2023-11-29 04:45:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28781 to 28045. [2023-11-29 04:45:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28045 states, 28044 states have (on average 1.0686064755384397) internal successors, (29968), 28044 states have internal predecessors, (29968), 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) [2023-11-29 04:45:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28045 states to 28045 states and 29968 transitions. [2023-11-29 04:45:30,708 INFO L78 Accepts]: Start accepts. Automaton has 28045 states and 29968 transitions. Word has length 471 [2023-11-29 04:45:30,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:30,708 INFO L495 AbstractCegarLoop]: Abstraction has 28045 states and 29968 transitions. [2023-11-29 04:45:30,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-29 04:45:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 28045 states and 29968 transitions. [2023-11-29 04:45:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2023-11-29 04:45:30,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:30,747 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:30,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:45:30,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 04:45:30,948 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:30,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:30,948 INFO L85 PathProgramCache]: Analyzing trace with hash -482671289, now seen corresponding path program 1 times [2023-11-29 04:45:30,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:30,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497320206] [2023-11-29 04:45:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:30,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:31,986 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:45:31,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:31,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497320206] [2023-11-29 04:45:31,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497320206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:31,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:31,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:45:31,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862015090] [2023-11-29 04:45:31,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:31,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:45:31,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:31,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:45:31,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:45:31,989 INFO L87 Difference]: Start difference. First operand 28045 states and 29968 transitions. Second operand has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 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) [2023-11-29 04:45:33,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:33,537 INFO L93 Difference]: Finished difference Result 59020 states and 63048 transitions. [2023-11-29 04:45:33,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:45:33,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 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 522 [2023-11-29 04:45:33,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:33,560 INFO L225 Difference]: With dead ends: 59020 [2023-11-29 04:45:33,560 INFO L226 Difference]: Without dead ends: 33368 [2023-11-29 04:45:33,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:45:33,570 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 285 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:33,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 174 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:45:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33368 states. [2023-11-29 04:45:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33368 to 29151. [2023-11-29 04:45:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29151 states, 29150 states have (on average 1.069056603773585) internal successors, (31163), 29150 states have internal predecessors, (31163), 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) [2023-11-29 04:45:33,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29151 states to 29151 states and 31163 transitions. [2023-11-29 04:45:33,906 INFO L78 Accepts]: Start accepts. Automaton has 29151 states and 31163 transitions. Word has length 522 [2023-11-29 04:45:33,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:33,907 INFO L495 AbstractCegarLoop]: Abstraction has 29151 states and 31163 transitions. [2023-11-29 04:45:33,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.142857142857146) internal successors, (393), 6 states have internal predecessors, (393), 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) [2023-11-29 04:45:33,907 INFO L276 IsEmpty]: Start isEmpty. Operand 29151 states and 31163 transitions. [2023-11-29 04:45:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2023-11-29 04:45:33,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:33,917 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:33,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 04:45:33,918 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:33,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash -760686944, now seen corresponding path program 1 times [2023-11-29 04:45:33,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:33,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113985462] [2023-11-29 04:45:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:33,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:35,385 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:45:35,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:35,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113985462] [2023-11-29 04:45:35,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113985462] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:45:35,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911135295] [2023-11-29 04:45:35,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:35,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:45:35,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:45:35,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:45:35,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:45:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:35,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:45:35,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:45:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:45:36,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:45:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:45:39,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911135295] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:45:39,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:45:39,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2023-11-29 04:45:39,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089790246] [2023-11-29 04:45:39,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:45:39,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:45:39,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:39,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:45:39,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:45:39,509 INFO L87 Difference]: Start difference. First operand 29151 states and 31163 transitions. Second operand has 11 states, 11 states have (on average 88.0909090909091) internal successors, (969), 10 states have internal predecessors, (969), 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) [2023-11-29 04:45:43,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:43,650 INFO L93 Difference]: Finished difference Result 62320 states and 66458 transitions. [2023-11-29 04:45:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 04:45:43,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 88.0909090909091) internal successors, (969), 10 states have internal predecessors, (969), 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 532 [2023-11-29 04:45:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:43,671 INFO L225 Difference]: With dead ends: 62320 [2023-11-29 04:45:43,671 INFO L226 Difference]: Without dead ends: 28909 [2023-11-29 04:45:43,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 1060 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=363, Invalid=969, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 04:45:43,681 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 1376 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 3874 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:43,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 152 Invalid, 4538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3874 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 04:45:43,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28909 states. [2023-11-29 04:45:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28909 to 14400. [2023-11-29 04:45:43,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14400 states, 14399 states have (on average 1.052295298284603) internal successors, (15152), 14399 states have internal predecessors, (15152), 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) [2023-11-29 04:45:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14400 states to 14400 states and 15152 transitions. [2023-11-29 04:45:43,878 INFO L78 Accepts]: Start accepts. Automaton has 14400 states and 15152 transitions. Word has length 532 [2023-11-29 04:45:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:43,878 INFO L495 AbstractCegarLoop]: Abstraction has 14400 states and 15152 transitions. [2023-11-29 04:45:43,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 88.0909090909091) internal successors, (969), 10 states have internal predecessors, (969), 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) [2023-11-29 04:45:43,878 INFO L276 IsEmpty]: Start isEmpty. Operand 14400 states and 15152 transitions. [2023-11-29 04:45:43,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2023-11-29 04:45:43,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:43,884 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:43,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:45:44,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 04:45:44,084 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:44,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:44,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1789511769, now seen corresponding path program 1 times [2023-11-29 04:45:44,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:44,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943250213] [2023-11-29 04:45:44,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:44,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-29 04:45:44,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:44,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943250213] [2023-11-29 04:45:44,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943250213] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:45:44,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139936528] [2023-11-29 04:45:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:44,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:45:44,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:45:44,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:45:44,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:45:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:45,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:45:45,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:45:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-29 04:45:46,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:45:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 527 proven. 69 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-29 04:45:48,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139936528] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:45:48,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:45:48,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 04:45:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698507623] [2023-11-29 04:45:48,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:45:48,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:45:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:48,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:45:48,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:45:48,896 INFO L87 Difference]: Start difference. First operand 14400 states and 15152 transitions. Second operand has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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) [2023-11-29 04:45:52,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:52,242 INFO L93 Difference]: Finished difference Result 36370 states and 38284 transitions. [2023-11-29 04:45:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:45:52,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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 535 [2023-11-29 04:45:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:52,256 INFO L225 Difference]: With dead ends: 36370 [2023-11-29 04:45:52,256 INFO L226 Difference]: Without dead ends: 20499 [2023-11-29 04:45:52,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1073 GetRequests, 1063 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:45:52,263 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 1014 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 3479 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 3479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:52,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 172 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 3479 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:45:52,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20499 states. [2023-11-29 04:45:52,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20499 to 18460. [2023-11-29 04:45:52,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18460 states, 18459 states have (on average 1.0465897394225039) internal successors, (19319), 18459 states have internal predecessors, (19319), 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) [2023-11-29 04:45:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18460 states to 18460 states and 19319 transitions. [2023-11-29 04:45:52,464 INFO L78 Accepts]: Start accepts. Automaton has 18460 states and 19319 transitions. Word has length 535 [2023-11-29 04:45:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:52,464 INFO L495 AbstractCegarLoop]: Abstraction has 18460 states and 19319 transitions. [2023-11-29 04:45:52,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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) [2023-11-29 04:45:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18460 states and 19319 transitions. [2023-11-29 04:45:52,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-11-29 04:45:52,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:52,476 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 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] [2023-11-29 04:45:52,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:45:52,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 04:45:52,677 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:52,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash -703157061, now seen corresponding path program 1 times [2023-11-29 04:45:52,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:52,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223903252] [2023-11-29 04:45:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:52,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:53,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 984 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-11-29 04:45:53,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:53,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223903252] [2023-11-29 04:45:53,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223903252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:53,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:53,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:53,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489551471] [2023-11-29 04:45:53,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:53,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:53,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:53,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:53,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:53,144 INFO L87 Difference]: Start difference. First operand 18460 states and 19319 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-11-29 04:45:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:53,716 INFO L93 Difference]: Finished difference Result 33963 states and 35529 transitions. [2023-11-29 04:45:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:53,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 669 [2023-11-29 04:45:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:53,727 INFO L225 Difference]: With dead ends: 33963 [2023-11-29 04:45:53,727 INFO L226 Difference]: Without dead ends: 15688 [2023-11-29 04:45:53,734 INFO L412 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 [2023-11-29 04:45:53,734 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 91 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:53,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 256 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:45:53,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15688 states. [2023-11-29 04:45:53,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15688 to 13106. [2023-11-29 04:45:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13106 states, 13105 states have (on average 1.042502861503243) internal successors, (13662), 13105 states have internal predecessors, (13662), 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) [2023-11-29 04:45:53,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13106 states to 13106 states and 13662 transitions. [2023-11-29 04:45:53,914 INFO L78 Accepts]: Start accepts. Automaton has 13106 states and 13662 transitions. Word has length 669 [2023-11-29 04:45:53,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:53,914 INFO L495 AbstractCegarLoop]: Abstraction has 13106 states and 13662 transitions. [2023-11-29 04:45:53,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-11-29 04:45:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 13106 states and 13662 transitions. [2023-11-29 04:45:53,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-11-29 04:45:53,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:53,920 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:53,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 04:45:53,920 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:53,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:53,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1309082084, now seen corresponding path program 1 times [2023-11-29 04:45:53,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:53,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534095684] [2023-11-29 04:45:53,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:53,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:54,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 1067 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2023-11-29 04:45:54,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:54,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534095684] [2023-11-29 04:45:54,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534095684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:54,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:54,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:54,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776088103] [2023-11-29 04:45:54,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:54,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:54,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:54,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:54,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:54,187 INFO L87 Difference]: Start difference. First operand 13106 states and 13662 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-11-29 04:45:54,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:54,696 INFO L93 Difference]: Finished difference Result 25846 states and 26953 transitions. [2023-11-29 04:45:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:54,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 670 [2023-11-29 04:45:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:54,704 INFO L225 Difference]: With dead ends: 25846 [2023-11-29 04:45:54,704 INFO L226 Difference]: Without dead ends: 12741 [2023-11-29 04:45:54,709 INFO L412 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 [2023-11-29 04:45:54,710 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 110 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:54,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 306 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:45:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2023-11-29 04:45:54,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 10898. [2023-11-29 04:45:54,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10898 states, 10897 states have (on average 1.0387262549325502) internal successors, (11319), 10897 states have internal predecessors, (11319), 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) [2023-11-29 04:45:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10898 states to 10898 states and 11319 transitions. [2023-11-29 04:45:54,819 INFO L78 Accepts]: Start accepts. Automaton has 10898 states and 11319 transitions. Word has length 670 [2023-11-29 04:45:54,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:54,820 INFO L495 AbstractCegarLoop]: Abstraction has 10898 states and 11319 transitions. [2023-11-29 04:45:54,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-11-29 04:45:54,820 INFO L276 IsEmpty]: Start isEmpty. Operand 10898 states and 11319 transitions. [2023-11-29 04:45:54,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2023-11-29 04:45:54,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:54,825 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:54,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 04:45:54,825 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:54,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:54,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1340415964, now seen corresponding path program 1 times [2023-11-29 04:45:54,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:54,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221954659] [2023-11-29 04:45:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:54,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 911 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 04:45:55,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221954659] [2023-11-29 04:45:55,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221954659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:55,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:55,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:45:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223513985] [2023-11-29 04:45:55,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:55,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:45:55,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:55,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:45:55,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:55,542 INFO L87 Difference]: Start difference. First operand 10898 states and 11319 transitions. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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) [2023-11-29 04:45:56,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:56,498 INFO L93 Difference]: Finished difference Result 23828 states and 24744 transitions. [2023-11-29 04:45:56,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:45:56,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 676 [2023-11-29 04:45:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:56,509 INFO L225 Difference]: With dead ends: 23828 [2023-11-29 04:45:56,510 INFO L226 Difference]: Without dead ends: 13299 [2023-11-29 04:45:56,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:56,516 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 229 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:56,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 60 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:45:56,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13299 states. [2023-11-29 04:45:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13299 to 9984. [2023-11-29 04:45:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9984 states, 9983 states have (on average 1.0360613042171691) internal successors, (10343), 9983 states have internal predecessors, (10343), 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) [2023-11-29 04:45:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9984 states to 9984 states and 10343 transitions. [2023-11-29 04:45:56,682 INFO L78 Accepts]: Start accepts. Automaton has 9984 states and 10343 transitions. Word has length 676 [2023-11-29 04:45:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:56,682 INFO L495 AbstractCegarLoop]: Abstraction has 9984 states and 10343 transitions. [2023-11-29 04:45:56,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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) [2023-11-29 04:45:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 9984 states and 10343 transitions. [2023-11-29 04:45:56,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2023-11-29 04:45:56,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:56,693 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:56,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 04:45:56,693 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:56,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1065545791, now seen corresponding path program 1 times [2023-11-29 04:45:56,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:56,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791044577] [2023-11-29 04:45:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:56,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 921 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-11-29 04:45:57,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791044577] [2023-11-29 04:45:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791044577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:57,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:57,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:45:57,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731492905] [2023-11-29 04:45:57,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:57,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:45:57,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:45:57,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:57,480 INFO L87 Difference]: Start difference. First operand 9984 states and 10343 transitions. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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) [2023-11-29 04:45:58,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:58,252 INFO L93 Difference]: Finished difference Result 20154 states and 20878 transitions. [2023-11-29 04:45:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:45:58,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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 732 [2023-11-29 04:45:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:58,259 INFO L225 Difference]: With dead ends: 20154 [2023-11-29 04:45:58,259 INFO L226 Difference]: Without dead ends: 10907 [2023-11-29 04:45:58,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:45:58,263 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 234 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:58,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 54 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:45:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10907 states. [2023-11-29 04:45:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10907 to 8318. [2023-11-29 04:45:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 1.037393290850066) internal successors, (8628), 8317 states have internal predecessors, (8628), 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) [2023-11-29 04:45:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 8628 transitions. [2023-11-29 04:45:58,360 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 8628 transitions. Word has length 732 [2023-11-29 04:45:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:58,361 INFO L495 AbstractCegarLoop]: Abstraction has 8318 states and 8628 transitions. [2023-11-29 04:45:58,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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) [2023-11-29 04:45:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 8628 transitions. [2023-11-29 04:45:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2023-11-29 04:45:58,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:45:58,367 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:45:58,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 04:45:58,367 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:45:58,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:45:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1582746863, now seen corresponding path program 1 times [2023-11-29 04:45:58,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:45:58,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092102203] [2023-11-29 04:45:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:45:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:45:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:45:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2023-11-29 04:45:59,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:45:59,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092102203] [2023-11-29 04:45:59,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092102203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:45:59,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:45:59,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:45:59,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094695709] [2023-11-29 04:45:59,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:45:59,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:45:59,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:45:59,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:45:59,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:45:59,002 INFO L87 Difference]: Start difference. First operand 8318 states and 8628 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-11-29 04:45:59,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:59,461 INFO L93 Difference]: Finished difference Result 12571 states and 13009 transitions. [2023-11-29 04:45:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:45:59,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 756 [2023-11-29 04:45:59,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:59,462 INFO L225 Difference]: With dead ends: 12571 [2023-11-29 04:45:59,462 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:45:59,465 INFO L412 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 [2023-11-29 04:45:59,465 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 85 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:59,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 17 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:45:59,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:45:59,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:45:59,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:45:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:45:59,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 756 [2023-11-29 04:45:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:45:59,466 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:45:59,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2023-11-29 04:45:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:45:59,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:45:59,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:45:59,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 04:45:59,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 04:46:44,132 WARN L293 SmtUtils]: Spent 44.66s on a formula simplification. DAG size of input: 982 DAG size of output: 1246 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 04:46:53,998 WARN L293 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 1246 DAG size of output: 155 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2023-11-29 04:46:54,003 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,004 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,005 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,006 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L1038(lines 1038 1054) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,007 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,008 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,009 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,009 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,009 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,009 INFO L895 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse33 (+ (* ~a29~0 3) (- 554771)))) (let ((.cse32 (+ 115704 (div .cse33 25))) (.cse9 (<= ~a25~0 10)) (.cse17 (<= ~a29~0 130)) (.cse23 (< ~a23~0 307)) (.cse12 (= ~a25~0 12))) (let ((.cse11 (<= 260 ~a29~0)) (.cse7 (<= 130 ~a29~0)) (.cse24 (or .cse23 (not .cse12) (< ~a29~0 278))) (.cse4 (= ~a25~0 10)) (.cse10 (<= 246 ~a29~0)) (.cse5 (<= ~a23~0 247)) (.cse18 (<= ~a29~0 274)) (.cse20 (= ~a25~0 13)) (.cse26 (<= ~a29~0 140)) (.cse27 (or (and .cse9 .cse17) (and .cse12 .cse17))) (.cse22 (<= ~a23~0 312)) (.cse21 (<= 0 (+ ~a23~0 42))) (.cse0 (<= ~a23~0 599997)) (.cse25 (<= 21782 ~a23~0)) (.cse30 (<= ~a29~0 232)) (.cse19 (<= 141 ~a29~0)) (.cse6 (= ~a25~0 11)) (.cse8 (<= 307 ~a23~0)) (.cse2 (= ~a4~0 1)) (.cse14 (<= 0 .cse32)) (.cse15 (<= (+ ~a23~0 55) 0)) (.cse16 (or (< 0 .cse32) (not (= (mod (div .cse33 5) 5) 0)))) (.cse28 (<= 0 (+ ~a23~0 599772))) (.cse1 (= ~a3~0 1)) (.cse3 (= ~a8~0 15)) (.cse13 (<= ~a4~0 0))) (or (and .cse0 .cse1 .cse2 (<= 0 (+ ~a29~0 554195)) .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse3 .cse7) (and .cse8 .cse9 .cse1 .cse2 .cse3 .cse10) (and .cse11 (<= ~a29~0 275) .cse12 .cse1 .cse3 .cse13) (and .cse11 .cse9 .cse1 .cse2 .cse3) (and .cse14 .cse15 .cse16 .cse9 .cse1 .cse3 .cse17) (and .cse12 .cse18 .cse1 .cse3 .cse10 .cse13) (and .cse15 .cse12 .cse18 .cse19 .cse1 .cse3 .cse13) (and .cse14 .cse20 .cse16 .cse0 .cse1 .cse2 .cse3 .cse21 .cse17) (and .cse20 .cse11 .cse1 .cse2 .cse22 .cse3 .cse21) (and (or (and .cse12 .cse5 .cse18 .cse2) (and .cse20 .cse5 .cse18 .cse2)) .cse1 .cse3 .cse7) (and (or (not .cse20) .cse23) .cse24 .cse1 .cse2 .cse3 (<= 115953 ~a29~0)) (and .cse14 .cse16 .cse12 .cse0 .cse1 .cse25 .cse2 .cse3 .cse17) (and .cse5 .cse9 .cse1 .cse2 .cse3 .cse10 .cse21) (and .cse20 .cse0 .cse26 .cse1 .cse2 .cse3 .cse7) (and .cse9 .cse19 .cse1 .cse25 .cse2 .cse3) (and .cse6 (<= 278 ~a29~0) .cse1 .cse2 .cse3) (and (or (and .cse5 .cse27) (and .cse20 .cse5 .cse17) (and .cse12 .cse5)) .cse28 .cse1 .cse2 .cse3) (and .cse5 (<= 10250 ~a29~0) .cse1 (<= ~a25~0 9) .cse3) (and (<= ~a23~0 600000) (or (and .cse12 .cse24 .cse8 .cse1 .cse2 .cse3 .cse10) (and (or (and .cse12 .cse18 .cse1 .cse2 .cse3) (and .cse6 .cse1 .cse2 .cse3)) .cse10))) (and .cse14 .cse20 .cse16 .cse0 .cse8 .cse1 .cse2 .cse3) (and .cse14 .cse15 .cse16 .cse6 .cse1 .cse3 .cse17) (and .cse5 .cse2 .cse3 .cse4) (and .cse10 (let ((.cse29 (<= 253 ~a29~0))) (or (and .cse12 .cse28 .cse5 .cse18 .cse1 .cse3) (and .cse12 .cse5 .cse18 .cse1 .cse29 .cse3) (and .cse20 .cse28 .cse5 .cse18 .cse1 .cse29 .cse3)))) (and .cse20 .cse19 .cse1 .cse2 .cse30 .cse3) (and .cse14 .cse16 (or (and .cse26 .cse9 .cse1 .cse2 .cse22 .cse3) (and .cse1 .cse27 .cse2 .cse22 .cse3)) .cse21) (and .cse0 (or (and .cse12 .cse19 .cse1 .cse25 .cse2 .cse30 .cse3) (and .cse19 (let ((.cse31 (<= ~a29~0 220))) (or (and .cse6 .cse1 .cse31 .cse2 .cse3) (and .cse12 .cse8 .cse1 .cse31 .cse2 .cse3)))))) (and .cse14 .cse15 .cse16 .cse12 .cse28 .cse1 .cse3 .cse13 .cse17))))) [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,010 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,011 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,012 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2023-11-29 04:46:54,013 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,014 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,015 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,016 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,017 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2023-11-29 04:46:54,018 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,019 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,020 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2023-11-29 04:46:54,023 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:46:54,025 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:46:54,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:46:54 BoogieIcfgContainer [2023-11-29 04:46:54,053 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:46:54,053 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:46:54,053 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:46:54,054 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:46:54,054 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:44:41" (3/4) ... [2023-11-29 04:46:54,056 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:46:54,080 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 04:46:54,082 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 04:46:54,084 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 04:46:54,086 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:46:54,251 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:46:54,251 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:46:54,251 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:46:54,252 INFO L158 Benchmark]: Toolchain (without parser) took 134960.39ms. Allocated memory was 151.0MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 108.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 283.3MB. Max. memory is 16.1GB. [2023-11-29 04:46:54,252 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:46:54,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.01ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 63.0MB in the end (delta: 45.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-29 04:46:54,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.96ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 63.0MB in the beginning and 148.3MB in the end (delta: -85.2MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-11-29 04:46:54,253 INFO L158 Benchmark]: Boogie Preprocessor took 134.44ms. Allocated memory is still 192.9MB. Free memory was 148.3MB in the beginning and 123.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-29 04:46:54,253 INFO L158 Benchmark]: RCFGBuilder took 1649.69ms. Allocated memory is still 192.9MB. Free memory was 123.1MB in the beginning and 101.3MB in the end (delta: 21.8MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2023-11-29 04:46:54,253 INFO L158 Benchmark]: TraceAbstraction took 132169.73ms. Allocated memory was 192.9MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 100.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-11-29 04:46:54,254 INFO L158 Benchmark]: Witness Printer took 198.14ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:46:54,255 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.01ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 63.0MB in the end (delta: 45.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.96ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 63.0MB in the beginning and 148.3MB in the end (delta: -85.2MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 134.44ms. Allocated memory is still 192.9MB. Free memory was 148.3MB in the beginning and 123.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1649.69ms. Allocated memory is still 192.9MB. Free memory was 123.1MB in the beginning and 101.3MB in the end (delta: 21.8MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * TraceAbstraction took 132169.73ms. Allocated memory was 192.9MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 100.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 198.14ms. Allocated memory is still 1.9GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 169]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 132.1s, OverallIterations: 33, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 41.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 54.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11867 SdHoareTripleChecker+Valid, 35.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11867 mSDsluCounter, 5947 SdHoareTripleChecker+Invalid, 30.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1080 mSDsCounter, 5496 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34756 IncrementalHoareTripleChecker+Invalid, 40252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5496 mSolverCounterUnsat, 4867 mSDtfsCounter, 34756 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3865 GetRequests, 3730 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35613occurred in iteration=21, InterpolantAutomatonStates: 179, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.7s AutomataMinimizationTime, 33 MinimizatonAttempts, 61896 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 93 NumberOfFragments, 1040 HoareAnnotationTreeSize, 1 FomulaSimplifications, 717304 FormulaSimplificationTreeSizeReduction, 44.7s HoareSimplificationTime, 1 FomulaSimplificationsInter, 48177 FormulaSimplificationTreeSizeReductionInter, 9.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 25.4s InterpolantComputationTime, 14297 NumberOfCodeBlocks, 14297 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 15711 ConstructedInterpolants, 0 QuantifiedInterpolants, 65461 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3017 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 41 InterpolantComputations, 30 PerfectInterpolantSequences, 19366/20973 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((a23 <= 599997) && (a3 == 1)) && (a4 == 1)) && (0 <= (a29 + 554195))) && (a8 == 15)) && (a25 == 10)) || (((((a23 <= 247) && (a25 == 11)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((307 <= a23) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29))) || ((((((260 <= a29) && (a29 <= 275)) && (a25 == 12)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || (((((260 <= a29) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((a23 + 55) <= 0)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 <= 10)) && (a3 == 1)) && (a8 == 15)) && (a29 <= 130))) || ((((((a25 == 12) && (a29 <= 274)) && (a3 == 1)) && (a8 == 15)) && (246 <= a29)) && (a4 <= 0))) || ((((((((a23 + 55) <= 0) && (a25 == 12)) && (a29 <= 274)) && (141 <= a29)) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0))) || (((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && (a25 == 13)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a23 <= 599997)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (0 <= (a23 + 42))) && (a29 <= 130))) || (((((((a25 == 13) && (260 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15)) && (0 <= (a23 + 42)))) || ((((((((a25 == 12) && (a23 <= 247)) && (a29 <= 274)) && (a4 == 1)) || ((((a25 == 13) && (a23 <= 247)) && (a29 <= 274)) && (a4 == 1))) && (a3 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((!((a25 == 13)) || (a23 < 307)) && (((a23 < 307) || !((a25 == 12))) || (a29 < 278))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (115953 <= a29))) || (((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 == 12)) && (a23 <= 599997)) && (a3 == 1)) && (21782 <= a23)) && (a4 == 1)) && (a8 == 15)) && (a29 <= 130))) || (((((((a23 <= 247) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29)) && (0 <= (a23 + 42)))) || (((((((a25 == 13) && (a23 <= 599997)) && (a29 <= 140)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (130 <= a29))) || ((((((a25 <= 10) && (141 <= a29)) && (a3 == 1)) && (21782 <= a23)) && (a4 == 1)) && (a8 == 15))) || (((((a25 == 11) && (278 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((((((a23 <= 247) && (((a25 <= 10) && (a29 <= 130)) || ((a25 == 12) && (a29 <= 130)))) || (((a25 == 13) && (a23 <= 247)) && (a29 <= 130))) || ((a25 == 12) && (a23 <= 247))) && (0 <= (a23 + 599772))) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((a23 <= 247) && (10250 <= a29)) && (a3 == 1)) && (a25 <= 9)) && (a8 == 15))) || ((a23 <= 600000) && ((((((((a25 == 12) && (((a23 < 307) || !((a25 == 12))) || (a29 < 278))) && (307 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) && (246 <= a29)) || (((((((a25 == 12) && (a29 <= 274)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) || ((((a25 == 11) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) && (246 <= a29))))) || ((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && (a25 == 13)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a23 <= 599997)) && (307 <= a23)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((a23 + 55) <= 0)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 == 11)) && (a3 == 1)) && (a8 == 15)) && (a29 <= 130))) || ((((a23 <= 247) && (a4 == 1)) && (a8 == 15)) && (a25 == 10))) || ((246 <= a29) && ((((((((a25 == 12) && (0 <= (a23 + 599772))) && (a23 <= 247)) && (a29 <= 274)) && (a3 == 1)) && (a8 == 15)) || ((((((a25 == 12) && (a23 <= 247)) && (a29 <= 274)) && (a3 == 1)) && (253 <= a29)) && (a8 == 15))) || (((((((a25 == 13) && (0 <= (a23 + 599772))) && (a23 <= 247)) && (a29 <= 274)) && (a3 == 1)) && (253 <= a29)) && (a8 == 15))))) || ((((((a25 == 13) && (141 <= a29)) && (a3 == 1)) && (a4 == 1)) && (a29 <= 232)) && (a8 == 15))) || ((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (((((((a29 <= 140) && (a25 <= 10)) && (a3 == 1)) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15)) || (((((a3 == 1) && (((a25 <= 10) && (a29 <= 130)) || ((a25 == 12) && (a29 <= 130)))) && (a4 == 1)) && (a23 <= 312)) && (a8 == 15)))) && (0 <= (a23 + 42)))) || ((a23 <= 599997) && ((((((((a25 == 12) && (141 <= a29)) && (a3 == 1)) && (21782 <= a23)) && (a4 == 1)) && (a29 <= 232)) && (a8 == 15)) || ((141 <= a29) && ((((((a25 == 11) && (a3 == 1)) && (a29 <= 220)) && (a4 == 1)) && (a8 == 15)) || ((((((a25 == 12) && (307 <= a23)) && (a3 == 1)) && (a29 <= 220)) && (a4 == 1)) && (a8 == 15))))))) || (((((((((0 <= (115704 + (((a29 * 3) + -554771) / 25))) && ((a23 + 55) <= 0)) && ((0 < (115704 + (((a29 * 3) + -554771) / 25))) || !((((((a29 * 3) + -554771) / 5) % 5) == 0)))) && (a25 == 12)) && (0 <= (a23 + 599772))) && (a3 == 1)) && (a8 == 15)) && (a4 <= 0)) && (a29 <= 130))) RESULT: Ultimate proved your program to be correct! [2023-11-29 04:46:54,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76097d1f-f041-4753-8a3b-88d7d16edcbf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE