./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/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_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/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 64bit --witnessprinter.graph.data.programhash 53e6dbff486f18c9e67859c6aafc8c76e31b5ebe4bc4a2fff6ca8706de37c876 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:32:16,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:32:16,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 02:32:16,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:32:16,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:32:16,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:32:16,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:32:16,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:32:16,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:32:16,660 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:32:16,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:32:16,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:32:16,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:32:16,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:32:16,663 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:32:16,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:32:16,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:32:16,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:32:16,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:32:16,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:32:16,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:32:16,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:32:16,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:32:16,668 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:32:16,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:32:16,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:32:16,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:32:16,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:32:16,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:32:16,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:32:16,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:32:16,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:32:16,671 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:32:16,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:32:16,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:32:16,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:32:16,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:32:16,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:32:16,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:32:16,673 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_775202d0-9921-4f66-999e-5f2d2b5c203e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e6dbff486f18c9e67859c6aafc8c76e31b5ebe4bc4a2fff6ca8706de37c876 [2023-11-29 02:32:16,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:32:16,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:32:16,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:32:16,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:32:16,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:32:16,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2023-11-29 02:32:20,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:32:20,378 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:32:20,379 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2023-11-29 02:32:20,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data/d65e1c5f9/dd2d304348114af594e171e1fcbece5b/FLAGc505e9a42 [2023-11-29 02:32:20,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data/d65e1c5f9/dd2d304348114af594e171e1fcbece5b [2023-11-29 02:32:20,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:32:20,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:32:20,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:32:20,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:32:20,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:32:20,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c2ea89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20, skipping insertion in model container [2023-11-29 02:32:20,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,458 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:32:20,584 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_775202d0-9921-4f66-999e-5f2d2b5c203e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1248,1261] [2023-11-29 02:32:20,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:32:20,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:32:20,676 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_775202d0-9921-4f66-999e-5f2d2b5c203e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1248,1261] [2023-11-29 02:32:20,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:32:20,736 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:32:20,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20 WrapperNode [2023-11-29 02:32:20,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:32:20,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:32:20,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:32:20,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:32:20,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,819 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 440 [2023-11-29 02:32:20,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:32:20,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:32:20,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:32:20,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:32:20,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,875 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 02:32:20,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:32:20,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:32:20,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:32:20,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:32:20,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (1/1) ... [2023-11-29 02:32:20,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:32:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:20,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:32:20,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:32:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:32:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:32:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:32:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:32:21,138 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:32:21,140 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:32:21,785 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:32:21,819 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:32:21,819 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:32:21,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:21 BoogieIcfgContainer [2023-11-29 02:32:21,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:32:21,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:32:21,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:32:21,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:32:21,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:32:20" (1/3) ... [2023-11-29 02:32:21,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364a5c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:32:21, skipping insertion in model container [2023-11-29 02:32:21,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:20" (2/3) ... [2023-11-29 02:32:21,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364a5c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:32:21, skipping insertion in model container [2023-11-29 02:32:21,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:21" (3/3) ... [2023-11-29 02:32:21,831 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Rrobin.c [2023-11-29 02:32:21,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:32:21,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:32:21,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:32:21,923 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;@11e7e178, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:32:21,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:32:21,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 0 states have call successors, (0), 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 02:32:21,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 02:32:21,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:21,937 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] [2023-11-29 02:32:21,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:21,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2092586942, now seen corresponding path program 1 times [2023-11-29 02:32:21,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:21,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451749361] [2023-11-29 02:32:21,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:21,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:22,471 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 02:32:22,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451749361] [2023-11-29 02:32:22,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451749361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:22,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:22,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:32:22,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651546062] [2023-11-29 02:32:22,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:22,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:22,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:22,519 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 0 states have call successors, (0), 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 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 02:32:22,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:22,585 INFO L93 Difference]: Finished difference Result 132 states and 216 transitions. [2023-11-29 02:32:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:22,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2023-11-29 02:32:22,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:22,599 INFO L225 Difference]: With dead ends: 132 [2023-11-29 02:32:22,599 INFO L226 Difference]: Without dead ends: 74 [2023-11-29 02:32:22,603 INFO L412 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 [2023-11-29 02:32:22,607 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:22,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 334 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-29 02:32:22,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-29 02:32:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.6164383561643836) internal successors, (118), 73 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 02:32:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 118 transitions. [2023-11-29 02:32:22,647 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 118 transitions. Word has length 24 [2023-11-29 02:32:22,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:22,648 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 118 transitions. [2023-11-29 02:32:22,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 02:32:22,648 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2023-11-29 02:32:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 02:32:22,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:22,650 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] [2023-11-29 02:32:22,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:32:22,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:22,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash -443901112, now seen corresponding path program 1 times [2023-11-29 02:32:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:22,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848634065] [2023-11-29 02:32:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:22,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:22,823 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 02:32:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848634065] [2023-11-29 02:32:22,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848634065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:22,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:22,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:32:22,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547941102] [2023-11-29 02:32:22,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:22,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:22,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:22,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:22,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:22,829 INFO L87 Difference]: Start difference. First operand 74 states and 118 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 02:32:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:22,871 INFO L93 Difference]: Finished difference Result 135 states and 214 transitions. [2023-11-29 02:32:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:22,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-11-29 02:32:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:22,873 INFO L225 Difference]: With dead ends: 135 [2023-11-29 02:32:22,874 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 02:32:22,875 INFO L412 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 [2023-11-29 02:32:22,876 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 332 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 [2023-11-29 02:32:22,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 332 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:22,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 02:32:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2023-11-29 02:32:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.6) internal successors, (120), 75 states have internal predecessors, (120), 0 states have call successors, (0), 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 02:32:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 120 transitions. [2023-11-29 02:32:22,889 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 120 transitions. Word has length 25 [2023-11-29 02:32:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:22,890 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 120 transitions. [2023-11-29 02:32:22,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 02:32:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 120 transitions. [2023-11-29 02:32:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 02:32:22,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:22,892 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] [2023-11-29 02:32:22,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:32:22,893 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:22,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:22,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1088252390, now seen corresponding path program 1 times [2023-11-29 02:32:22,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:22,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609767583] [2023-11-29 02:32:22,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:23,183 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 02:32:23,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:23,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609767583] [2023-11-29 02:32:23,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609767583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:23,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:23,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:32:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62954348] [2023-11-29 02:32:23,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:23,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:23,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:23,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:23,187 INFO L87 Difference]: Start difference. First operand 76 states and 120 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:23,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:23,357 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2023-11-29 02:32:23,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:32:23,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-29 02:32:23,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:23,359 INFO L225 Difference]: With dead ends: 203 [2023-11-29 02:32:23,359 INFO L226 Difference]: Without dead ends: 143 [2023-11-29 02:32:23,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:32:23,362 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 279 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:23,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 384 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:23,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-29 02:32:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 79. [2023-11-29 02:32:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.5769230769230769) internal successors, (123), 78 states have internal predecessors, (123), 0 states have call successors, (0), 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 02:32:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 123 transitions. [2023-11-29 02:32:23,374 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 123 transitions. Word has length 26 [2023-11-29 02:32:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:23,374 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 123 transitions. [2023-11-29 02:32:23,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 123 transitions. [2023-11-29 02:32:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 02:32:23,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:23,376 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] [2023-11-29 02:32:23,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:32:23,377 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:23,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:23,377 INFO L85 PathProgramCache]: Analyzing trace with hash 686754972, now seen corresponding path program 1 times [2023-11-29 02:32:23,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:23,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603987189] [2023-11-29 02:32:23,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:23,915 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 02:32:23,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:23,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603987189] [2023-11-29 02:32:23,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603987189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:23,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:23,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:32:23,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890902381] [2023-11-29 02:32:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:23,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:32:23,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:23,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:32:23,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:32:23,919 INFO L87 Difference]: Start difference. First operand 79 states and 123 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:24,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:24,431 INFO L93 Difference]: Finished difference Result 153 states and 237 transitions. [2023-11-29 02:32:24,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:32:24,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-29 02:32:24,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:24,433 INFO L225 Difference]: With dead ends: 153 [2023-11-29 02:32:24,433 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 02:32:24,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:32:24,435 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 187 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:24,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 228 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:32:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 02:32:24,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 79. [2023-11-29 02:32:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.564102564102564) internal successors, (122), 78 states have internal predecessors, (122), 0 states have call successors, (0), 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 02:32:24,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 122 transitions. [2023-11-29 02:32:24,443 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 122 transitions. Word has length 26 [2023-11-29 02:32:24,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:24,444 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 122 transitions. [2023-11-29 02:32:24,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:24,444 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions. [2023-11-29 02:32:24,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 02:32:24,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:24,445 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] [2023-11-29 02:32:24,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:32:24,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:24,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash 686695390, now seen corresponding path program 1 times [2023-11-29 02:32:24,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:24,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340703120] [2023-11-29 02:32:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:24,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:32:24,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:32:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:32:24,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:32:24,545 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:32:24,547 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:32:24,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:32:24,553 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 02:32:24,557 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:32:24,587 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 02:32:24,588 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 02:32:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 02:32:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 02:32:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-29 02:32:24,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 02:32:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-29 02:32:24,590 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-29 02:32:24,591 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 02:32:24,591 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-29 02:32:24,593 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 02:32:24,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-29 02:32:24,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-29 02:32:24,598 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-29 02:32:24,599 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated [2023-11-29 02:32:24,600 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-29 02:32:24,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:32:24 BoogieIcfgContainer [2023-11-29 02:32:24,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:32:24,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:32:24,615 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:32:24,615 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:32:24,616 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:21" (3/4) ... [2023-11-29 02:32:24,618 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:32:24,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:32:24,621 INFO L158 Benchmark]: Toolchain (without parser) took 4206.73ms. Allocated memory was 199.2MB in the beginning and 268.4MB in the end (delta: 69.2MB). Free memory was 167.3MB in the beginning and 128.2MB in the end (delta: 39.1MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. [2023-11-29 02:32:24,621 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:32:24,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.99ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 151.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 02:32:24,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.77ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 142.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:32:24,623 INFO L158 Benchmark]: Boogie Preprocessor took 120.11ms. Allocated memory is still 199.2MB. Free memory was 142.6MB in the beginning and 137.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 02:32:24,623 INFO L158 Benchmark]: RCFGBuilder took 878.91ms. Allocated memory is still 199.2MB. Free memory was 136.8MB in the beginning and 145.6MB in the end (delta: -8.8MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-29 02:32:24,624 INFO L158 Benchmark]: TraceAbstraction took 2790.76ms. Allocated memory was 199.2MB in the beginning and 268.4MB in the end (delta: 69.2MB). Free memory was 144.8MB in the beginning and 129.2MB in the end (delta: 15.6MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2023-11-29 02:32:24,624 INFO L158 Benchmark]: Witness Printer took 5.24ms. Allocated memory is still 268.4MB. Free memory was 129.2MB in the beginning and 128.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:32:24,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.99ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 151.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.77ms. Allocated memory is still 199.2MB. Free memory was 151.8MB in the beginning and 142.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 120.11ms. Allocated memory is still 199.2MB. Free memory was 142.6MB in the beginning and 137.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 878.91ms. Allocated memory is still 199.2MB. Free memory was 136.8MB in the beginning and 145.6MB in the end (delta: -8.8MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2790.76ms. Allocated memory was 199.2MB in the beginning and 268.4MB in the end (delta: 69.2MB). Free memory was 144.8MB in the beginning and 129.2MB in the end (delta: 15.6MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. * Witness Printer took 5.24ms. Allocated memory is still 268.4MB. Free memory was 129.2MB in the beginning and 128.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 90. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L30] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L32] const SORT_1 var_5 = 0; [L33] const SORT_8 var_10 = 0; [L34] const SORT_1 var_19 = 1; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L38] SORT_1 input_4; [L39] SORT_1 input_34; [L40] SORT_1 input_37; [L41] SORT_1 input_41; [L42] SORT_1 input_50; [L43] SORT_1 input_53; [L44] SORT_1 input_57; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, var_10=0, var_19=1, var_5=0] [L46] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_6=0, var_10=0, var_19=1, var_5=0] [L47] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_6=0, var_10=0, var_19=1, var_5=0] [L48] SORT_1 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_6=0, var_10=0, var_19=1, var_5=0] [L49] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_6=0, var_10=0, var_19=1, var_5=0] [L50] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L52] SORT_1 init_7_arg_1 = var_5; [L53] state_6 = init_7_arg_1 [L54] SORT_1 init_13_arg_1 = var_5; [L55] state_12 = init_13_arg_1 [L56] SORT_1 init_27_arg_1 = var_5; [L57] state_26 = init_27_arg_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_19=1, var_5=0] [L60] input_2 = __VERIFIER_nondet_uchar() [L61] input_3 = __VERIFIER_nondet_uchar() [L62] input_4 = __VERIFIER_nondet_uchar() [L63] input_34 = __VERIFIER_nondet_uchar() [L64] input_37 = __VERIFIER_nondet_uchar() [L65] input_41 = __VERIFIER_nondet_uchar() [L66] input_50 = __VERIFIER_nondet_uchar() [L67] input_53 = __VERIFIER_nondet_uchar() [L68] input_57 = __VERIFIER_nondet_uchar() [L71] SORT_1 var_9_arg_0 = state_6; VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_19=1, var_5=0, var_9_arg_0=0] [L72] EXPR var_9_arg_0 & mask_SORT_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_19=1, var_5=0, var_9_arg_0=0] [L72] var_9_arg_0 = var_9_arg_0 & mask_SORT_1 [L73] SORT_8 var_9 = var_9_arg_0; [L74] SORT_8 var_11_arg_0 = var_9; [L75] SORT_8 var_11_arg_1 = var_10; [L76] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L77] SORT_1 var_14_arg_0 = state_12; VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14_arg_0=0, var_19=1, var_5=0, var_9=0, var_9_arg_0=0] [L78] EXPR var_14_arg_0 & mask_SORT_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14_arg_0=0, var_19=1, var_5=0, var_9=0, var_9_arg_0=0] [L78] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L79] SORT_8 var_14 = var_14_arg_0; [L80] SORT_8 var_15_arg_0 = var_14; [L81] SORT_8 var_15_arg_1 = var_10; [L82] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L83] SORT_1 var_16_arg_0 = var_11; [L84] SORT_1 var_16_arg_1 = var_15; VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_5=0, var_9=0, var_9_arg_0=0] [L85] EXPR var_16_arg_0 | var_16_arg_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_5=0, var_9=0, var_9_arg_0=0] [L85] SORT_1 var_16 = var_16_arg_0 | var_16_arg_1; [L86] SORT_1 var_20_arg_0 = var_16; [L87] SORT_1 var_20 = ~var_20_arg_0; [L88] SORT_1 var_21_arg_0 = var_19; [L89] SORT_1 var_21_arg_1 = var_20; VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=254, var_20_arg_0=1, var_21_arg_0=1, var_21_arg_1=254, var_5=0, var_9=0, var_9_arg_0=0] [L90] EXPR var_21_arg_0 & var_21_arg_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=254, var_20_arg_0=1, var_21_arg_0=1, var_21_arg_1=254, var_5=0, var_9=0, var_9_arg_0=0] [L90] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L91] EXPR var_21 & mask_SORT_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=254, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=254, var_5=0, var_9=0, var_9_arg_0=0] [L91] var_21 = var_21 & mask_SORT_1 [L92] SORT_1 bad_22_arg_0 = var_21; [L93] CALL __VERIFIER_assert(!(bad_22_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 468 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 468 mSDsluCounter, 1278 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 880 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 401 IncrementalHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 398 mSDtfsCounter, 401 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=3, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 76 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 02:32:24,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/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_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/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 64bit --witnessprinter.graph.data.programhash 53e6dbff486f18c9e67859c6aafc8c76e31b5ebe4bc4a2fff6ca8706de37c876 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:32:26,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:32:26,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 02:32:26,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:32:26,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:32:26,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:32:26,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:32:26,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:32:26,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:32:26,917 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:32:26,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:32:26,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:32:26,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:32:26,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:32:26,921 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:32:26,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:32:26,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:32:26,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:32:26,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:32:26,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:32:26,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:32:26,925 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:32:26,926 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:32:26,926 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:32:26,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:32:26,928 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:32:26,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:32:26,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:32:26,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:32:26,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:32:26,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:32:26,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:32:26,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:32:26,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:32:26,932 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:32:26,932 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:32:26,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:32:26,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:32:26,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:32:26,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:32:26,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:32:26,934 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:32:26,934 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_775202d0-9921-4f66-999e-5f2d2b5c203e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e6dbff486f18c9e67859c6aafc8c76e31b5ebe4bc4a2fff6ca8706de37c876 [2023-11-29 02:32:27,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:32:27,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:32:27,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:32:27,308 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:32:27,308 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:32:27,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2023-11-29 02:32:30,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:32:30,327 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:32:30,327 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2023-11-29 02:32:30,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data/aabbb5809/2897966797c7412a8861d0978fc6eb68/FLAGa585fa131 [2023-11-29 02:32:30,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/data/aabbb5809/2897966797c7412a8861d0978fc6eb68 [2023-11-29 02:32:30,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:32:30,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:32:30,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:32:30,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:32:30,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:32:30,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4709c839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30, skipping insertion in model container [2023-11-29 02:32:30,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:32:30,567 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_775202d0-9921-4f66-999e-5f2d2b5c203e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1248,1261] [2023-11-29 02:32:30,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:32:30,646 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:32:30,660 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_775202d0-9921-4f66-999e-5f2d2b5c203e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1248,1261] [2023-11-29 02:32:30,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:32:30,716 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:32:30,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30 WrapperNode [2023-11-29 02:32:30,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:32:30,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:32:30,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:32:30,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:32:30,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,772 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 220 [2023-11-29 02:32:30,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:32:30,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:32:30,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:32:30,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:32:30,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,811 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 02:32:30,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:32:30,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:32:30,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:32:30,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:32:30,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (1/1) ... [2023-11-29 02:32:30,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:32:30,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:30,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:32:30,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:32:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:32:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:32:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:32:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:32:31,043 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:32:31,046 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:32:31,302 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:32:31,343 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:32:31,343 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:32:31,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:31 BoogieIcfgContainer [2023-11-29 02:32:31,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:32:31,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:32:31,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:32:31,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:32:31,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:32:30" (1/3) ... [2023-11-29 02:32:31,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23817183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:32:31, skipping insertion in model container [2023-11-29 02:32:31,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:30" (2/3) ... [2023-11-29 02:32:31,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23817183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:32:31, skipping insertion in model container [2023-11-29 02:32:31,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:31" (3/3) ... [2023-11-29 02:32:31,355 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Rrobin.c [2023-11-29 02:32:31,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:32:31,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:32:31,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:32:31,445 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;@6e072948, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:32:31,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:32:31,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:31,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 02:32:31,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:31,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 02:32:31,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:31,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:31,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-29 02:32:31,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:32:31,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819509307] [2023-11-29 02:32:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:31,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:32:31,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:32:31,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:32:31,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 02:32:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:31,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:32:31,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:31,888 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 02:32:31,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:31,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:32:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819509307] [2023-11-29 02:32:31,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819509307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:31,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:31,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:32:31,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162889096] [2023-11-29 02:32:31,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:31,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:31,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:32:31,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:31,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:31,932 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 02:32:32,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:32,008 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-29 02:32:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:32,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-11-29 02:32:32,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:32,018 INFO L225 Difference]: With dead ends: 16 [2023-11-29 02:32:32,018 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 02:32:32,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:32:32,025 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 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 [2023-11-29 02:32:32,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:32,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 02:32:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-29 02:32:32,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:32,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-29 02:32:32,073 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-29 02:32:32,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:32,073 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-29 02:32:32,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 02:32:32,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-29 02:32:32,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 02:32:32,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:32,074 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-29 02:32:32,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:32:32,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:32:32,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:32,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-29 02:32:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:32:32,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295829781] [2023-11-29 02:32:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:32,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:32:32,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:32:32,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:32:32,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 02:32:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:32,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 68 conjunts are in the unsatisfiable core [2023-11-29 02:32:32,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:34,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:37,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:32:37,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295829781] [2023-11-29 02:32:37,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295829781] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:37,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:37,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:32:37,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517316399] [2023-11-29 02:32:37,561 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:37,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:32:37,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:32:37,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:32:37,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:37,565 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:37,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:37,707 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-29 02:32:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:32:37,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 02:32:37,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:37,711 INFO L225 Difference]: With dead ends: 14 [2023-11-29 02:32:37,711 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 02:32:37,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:32:37,713 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:37,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:37,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 02:32:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-29 02:32:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:37,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-29 02:32:37,718 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-29 02:32:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:37,719 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-29 02:32:37,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:37,719 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-29 02:32:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 02:32:37,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:37,720 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-29 02:32:37,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 02:32:37,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:32:37,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:37,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-29 02:32:37,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:32:37,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364398415] [2023-11-29 02:32:37,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:32:37,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:32:37,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:32:37,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:32:37,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 02:32:38,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:32:38,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:38,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-29 02:32:38,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 02:32:40,278 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 02:32:44,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:32:44,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364398415] [2023-11-29 02:32:44,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364398415] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:44,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:44,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:32:44,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809881397] [2023-11-29 02:32:44,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:44,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:32:44,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:32:44,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:32:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:44,024 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:44,137 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2023-11-29 02:32:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:44,139 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 02:32:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:44,139 INFO L225 Difference]: With dead ends: 11 [2023-11-29 02:32:44,139 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:32:44,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:32:44,140 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:44,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:44,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:32:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:32:44,142 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 02:32:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:32:44,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-29 02:32:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:44,143 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:32:44,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:32:44,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:32:44,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:32:44,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 02:32:44,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:32:44,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:32:46,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:32:46,267 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 208) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (exists ((|ULTIMATE.start_main_~var_47_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_46_arg_0~0#1| (_ BitVec 8))) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_46_arg_0~0#1|))))) (.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_47_arg_0~0#1|)))))) (and (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse0))))))))))) |ULTIMATE.start_main_~state_6~0#1|) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 .cse1))) (_ bv1 32))) (_ bv0 8)) (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse1))))))))))) |ULTIMATE.start_main_~state_12~0#1|)))) (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~var_10~0#1| (_ bv0 32))) [2023-11-29 02:32:46,267 INFO L899 garLoopResultBuilder]: For program point L58-3(lines 58 208) no Hoare annotation was computed. [2023-11-29 02:32:46,267 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-29 02:32:46,267 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-29 02:32:46,268 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-29 02:32:46,268 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:32:46,268 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-29 02:32:46,270 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-29 02:32:46,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:32:46,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_47_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_46_arg_0~0#1 : bv8 :: (~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == ~state_6~0 && ~bvand~32(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0]), ~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0]))[7:0]), 1bv32)[7:0] == 0bv8) && ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == ~state_12~0) could not be translated [2023-11-29 02:32:46,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:32:46 BoogieIcfgContainer [2023-11-29 02:32:46,285 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:32:46,285 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:32:46,285 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:32:46,286 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:32:46,286 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:31" (3/4) ... [2023-11-29 02:32:46,288 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:32:46,298 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 02:32:46,298 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 02:32:46,299 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:32:46,300 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:32:46,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:32:46,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:32:46,404 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:32:46,404 INFO L158 Benchmark]: Toolchain (without parser) took 16043.90ms. Allocated memory was 100.7MB in the beginning and 262.1MB in the end (delta: 161.5MB). Free memory was 76.5MB in the beginning and 149.1MB in the end (delta: -72.5MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2023-11-29 02:32:46,405 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:32:46,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.37ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 61.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 02:32:46,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.54ms. Allocated memory is still 100.7MB. Free memory was 61.4MB in the beginning and 58.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:32:46,406 INFO L158 Benchmark]: Boogie Preprocessor took 61.29ms. Allocated memory is still 100.7MB. Free memory was 58.6MB in the beginning and 55.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:32:46,406 INFO L158 Benchmark]: RCFGBuilder took 508.39ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 59.6MB in the end (delta: -4.2MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-29 02:32:46,406 INFO L158 Benchmark]: TraceAbstraction took 14937.79ms. Allocated memory was 100.7MB in the beginning and 262.1MB in the end (delta: 161.5MB). Free memory was 59.1MB in the beginning and 156.4MB in the end (delta: -97.3MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2023-11-29 02:32:46,407 INFO L158 Benchmark]: Witness Printer took 118.27ms. Allocated memory is still 262.1MB. Free memory was 156.4MB in the beginning and 149.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:32:46,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.37ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 61.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.54ms. Allocated memory is still 100.7MB. Free memory was 61.4MB in the beginning and 58.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.29ms. Allocated memory is still 100.7MB. Free memory was 58.6MB in the beginning and 55.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.39ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 59.6MB in the end (delta: -4.2MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14937.79ms. Allocated memory was 100.7MB in the beginning and 262.1MB in the end (delta: 161.5MB). Free memory was 59.1MB in the beginning and 156.4MB in the end (delta: -97.3MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. * Witness Printer took 118.27ms. Allocated memory is still 262.1MB. Free memory was 156.4MB in the beginning and 149.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_47_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_46_arg_0~0#1 : bv8 :: (~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == ~state_6~0 && ~bvand~32(~zero_extend~32~8(~bvand~32(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_46_arg_0~0#1))[7:0]), ~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0]))[7:0]), 1bv32)[7:0] == 0bv8) && ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~bvnot~32(~zero_extend~32~8(ULTIMATE.start_main_~var_47_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == ~state_12~0) could not be translated * 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: 21]: 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, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 66 HoareAnnotationTreeSize, 1 FomulaSimplifications, 138 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 279 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 13 QuantifiedInterpolants, 11048 SizeOfPredicates, 199 NumberOfNonLiveVariables, 531 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 6/18 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: 58]: Loop Invariant Derived loop invariant: (((1 == mask_SORT_1) && (var_5 == 0)) && (var_10 == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:32:46,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775202d0-9921-4f66-999e-5f2d2b5c203e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE