./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 910053966829413301ad38c19b53ab3e8d14b6c38695934fe145e036ec55306d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:56:00,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:56:00,485 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 21:56:00,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:56:00,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:56:00,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:56:00,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:56:00,540 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:56:00,541 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:56:00,542 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:56:00,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:56:00,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:56:00,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:56:00,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:56:00,549 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:56:00,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:56:00,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:56:00,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:56:00,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:56:00,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:56:00,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:56:00,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:56:00,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:56:00,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:56:00,556 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:56:00,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:56:00,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:56:00,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:56:00,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:56:00,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:00,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:56:00,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:56:00,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:56:00,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:56:00,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:56:00,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:56:00,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:56:00,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:56:00,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:56:00,568 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_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 910053966829413301ad38c19b53ab3e8d14b6c38695934fe145e036ec55306d [2024-10-31 21:56:00,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:56:00,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:56:00,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:56:00,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:56:00,961 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:56:00,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.2.prop1-back-serstep.c Unable to find full path for "g++" [2024-10-31 21:56:03,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:56:03,693 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:56:03,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.2.prop1-back-serstep.c [2024-10-31 21:56:03,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/data/71e4762e6/e28ccd83498940c099cfedcc614f6d9d/FLAGa5cd7dce6 [2024-10-31 21:56:03,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/data/71e4762e6/e28ccd83498940c099cfedcc614f6d9d [2024-10-31 21:56:03,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:56:03,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:56:03,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:03,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:56:03,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:56:03,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:03" (1/1) ... [2024-10-31 21:56:03,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dec7217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:03, skipping insertion in model container [2024-10-31 21:56:03,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:56:03" (1/1) ... [2024-10-31 21:56:03,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:56:04,079 WARN L251 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_03145b86-68c5-4c98-a923-ed763e710e8d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.2.prop1-back-serstep.c[1174,1187] [2024-10-31 21:56:04,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:04,814 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:56:04,831 WARN L251 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_03145b86-68c5-4c98-a923-ed763e710e8d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.blocks.2.prop1-back-serstep.c[1174,1187] [2024-10-31 21:56:05,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:56:05,136 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:56:05,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05 WrapperNode [2024-10-31 21:56:05,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:56:05,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:05,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:56:05,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:56:05,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:05,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:06,315 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6209 [2024-10-31 21:56:06,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:56:06,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:56:06,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:56:06,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:56:06,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:06,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:06,713 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:06,975 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:56:06,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:06,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:07,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:07,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:07,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:07,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:07,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:56:07,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:56:07,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:56:07,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:56:07,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (1/1) ... [2024-10-31 21:56:07,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:56:07,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:56:07,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:56:07,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03145b86-68c5-4c98-a923-ed763e710e8d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:56:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:56:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:56:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:56:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:56:08,054 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:56:08,056 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:56:16,012 INFO L? ?]: Removed 3702 outVars from TransFormulas that were not future-live. [2024-10-31 21:56:16,012 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:56:16,059 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:56:16,059 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:56:16,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:16 BoogieIcfgContainer [2024-10-31 21:56:16,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:56:16,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:56:16,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:56:16,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:56:16,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:56:03" (1/3) ... [2024-10-31 21:56:16,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1d7920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:16, skipping insertion in model container [2024-10-31 21:56:16,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:56:05" (2/3) ... [2024-10-31 21:56:16,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1d7920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:56:16, skipping insertion in model container [2024-10-31 21:56:16,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:56:16" (3/3) ... [2024-10-31 21:56:16,073 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.blocks.2.prop1-back-serstep.c [2024-10-31 21:56:16,092 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:56:16,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:56:16,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:56:16,233 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f81de88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:56:16,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:56:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 1890 states, 1888 states have (on average 1.4994703389830508) internal successors, (2831), 1889 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-31 21:56:16,268 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:16,269 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:16,270 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:16,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1106271977, now seen corresponding path program 1 times [2024-10-31 21:56:16,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:16,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360828440] [2024-10-31 21:56:16,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:16,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:17,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:17,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360828440] [2024-10-31 21:56:17,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360828440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:17,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:17,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:56:17,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697605809] [2024-10-31 21:56:17,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:17,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:56:17,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:56:17,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:17,813 INFO L87 Difference]: Start difference. First operand has 1890 states, 1888 states have (on average 1.4994703389830508) internal successors, (2831), 1889 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:18,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:18,035 INFO L93 Difference]: Finished difference Result 3705 states and 5553 transitions. [2024-10-31 21:56:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:18,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-10-31 21:56:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:18,060 INFO L225 Difference]: With dead ends: 3705 [2024-10-31 21:56:18,061 INFO L226 Difference]: Without dead ends: 1889 [2024-10-31 21:56:18,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:18,076 INFO L432 NwaCegarLoop]: 2825 mSDtfsCounter, 0 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8469 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:18,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8469 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:56:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-10-31 21:56:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1889. [2024-10-31 21:56:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 1.4984110169491525) internal successors, (2829), 1888 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:18,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2829 transitions. [2024-10-31 21:56:18,210 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2829 transitions. Word has length 149 [2024-10-31 21:56:18,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:18,211 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2829 transitions. [2024-10-31 21:56:18,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:18,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2829 transitions. [2024-10-31 21:56:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-31 21:56:18,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:18,214 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:18,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:56:18,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:18,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash 67003170, now seen corresponding path program 1 times [2024-10-31 21:56:18,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:18,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805565831] [2024-10-31 21:56:18,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:18,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:18,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805565831] [2024-10-31 21:56:18,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805565831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:18,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:18,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:56:18,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646147094] [2024-10-31 21:56:18,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:18,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:56:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:56:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:18,815 INFO L87 Difference]: Start difference. First operand 1889 states and 2829 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:18,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:18,921 INFO L93 Difference]: Finished difference Result 3706 states and 5551 transitions. [2024-10-31 21:56:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:18,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-10-31 21:56:18,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:18,930 INFO L225 Difference]: With dead ends: 3706 [2024-10-31 21:56:18,930 INFO L226 Difference]: Without dead ends: 1891 [2024-10-31 21:56:18,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:56:18,934 INFO L432 NwaCegarLoop]: 2825 mSDtfsCounter, 0 mSDsluCounter, 5640 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8465 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:18,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8465 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:56:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-10-31 21:56:18,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1891. [2024-10-31 21:56:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1890 states have (on average 1.4978835978835978) internal successors, (2831), 1890 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:18,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2831 transitions. [2024-10-31 21:56:18,984 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2831 transitions. Word has length 150 [2024-10-31 21:56:18,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:18,985 INFO L471 AbstractCegarLoop]: Abstraction has 1891 states and 2831 transitions. [2024-10-31 21:56:18,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2831 transitions. [2024-10-31 21:56:18,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-31 21:56:18,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:18,989 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:18,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:56:18,989 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:18,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash 979133264, now seen corresponding path program 1 times [2024-10-31 21:56:18,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:18,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287567625] [2024-10-31 21:56:18,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:18,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:19,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:56:19,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287567625] [2024-10-31 21:56:19,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287567625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:19,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:19,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:19,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748161882] [2024-10-31 21:56:19,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:19,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:56:19,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:19,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:56:19,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:56:19,876 INFO L87 Difference]: Start difference. First operand 1891 states and 2831 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:20,087 INFO L93 Difference]: Finished difference Result 5511 states and 8254 transitions. [2024-10-31 21:56:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:56:20,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-10-31 21:56:20,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:20,101 INFO L225 Difference]: With dead ends: 5511 [2024-10-31 21:56:20,102 INFO L226 Difference]: Without dead ends: 3694 [2024-10-31 21:56:20,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:56:20,109 INFO L432 NwaCegarLoop]: 2823 mSDtfsCounter, 2668 mSDsluCounter, 8354 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 11177 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:20,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2668 Valid, 11177 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:56:20,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2024-10-31 21:56:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 2101. [2024-10-31 21:56:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2101 states, 2100 states have (on average 1.4976190476190476) internal successors, (3145), 2100 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 3145 transitions. [2024-10-31 21:56:20,192 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 3145 transitions. Word has length 151 [2024-10-31 21:56:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:20,193 INFO L471 AbstractCegarLoop]: Abstraction has 2101 states and 3145 transitions. [2024-10-31 21:56:20,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:20,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 3145 transitions. [2024-10-31 21:56:20,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2024-10-31 21:56:20,246 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:20,248 INFO L215 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:20,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:56:20,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:20,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash 710682820, now seen corresponding path program 1 times [2024-10-31 21:56:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:20,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930372226] [2024-10-31 21:56:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:56:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:56:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-31 21:56:26,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:56:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930372226] [2024-10-31 21:56:26,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930372226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:56:26,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:56:26,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:56:26,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272166335] [2024-10-31 21:56:26,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:56:26,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:56:26,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:56:26,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:56:26,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:56:26,490 INFO L87 Difference]: Start difference. First operand 2101 states and 3145 transitions. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:26,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:56:26,585 INFO L93 Difference]: Finished difference Result 3922 states and 5871 transitions. [2024-10-31 21:56:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:56:26,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 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 1058 [2024-10-31 21:56:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:56:26,596 INFO L225 Difference]: With dead ends: 3922 [2024-10-31 21:56:26,597 INFO L226 Difference]: Without dead ends: 2105 [2024-10-31 21:56:26,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:56:26,602 INFO L432 NwaCegarLoop]: 2825 mSDtfsCounter, 0 mSDsluCounter, 5640 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8465 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:56:26,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8465 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:56:26,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2024-10-31 21:56:26,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2101. [2024-10-31 21:56:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2101 states, 2100 states have (on average 1.4976190476190476) internal successors, (3145), 2100 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 3145 transitions. [2024-10-31 21:56:26,655 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 3145 transitions. Word has length 1058 [2024-10-31 21:56:26,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:56:26,657 INFO L471 AbstractCegarLoop]: Abstraction has 2101 states and 3145 transitions. [2024-10-31 21:56:26,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:56:26,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 3145 transitions. [2024-10-31 21:56:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-10-31 21:56:26,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:56:26,699 INFO L215 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:56:26,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:56:26,700 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:56:26,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:56:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1465218677, now seen corresponding path program 1 times [2024-10-31 21:56:26,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:56:26,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011789941] [2024-10-31 21:56:26,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:56:26,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms