./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 716547a7fbdfceb31d193aabba3879422257a24dd737c70a32b939b695035c3c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:41:04,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:41:04,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 02:41:04,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:41:04,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:41:04,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:41:04,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:41:04,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:41:04,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:41:04,417 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:41:04,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:41:04,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:41:04,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:41:04,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:41:04,420 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:41:04,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:41:04,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:41:04,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:41:04,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:41:04,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:41:04,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:41:04,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:41:04,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:41:04,425 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:41:04,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:41:04,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:41:04,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:41:04,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:41:04,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:41:04,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:41:04,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:41:04,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:41:04,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:41:04,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:41:04,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:41:04,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:41:04,430 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:41:04,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:41:04,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:41:04,431 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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716547a7fbdfceb31d193aabba3879422257a24dd737c70a32b939b695035c3c [2023-11-29 02:41:04,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:41:04,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:41:04,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:41:04,669 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:41:04,669 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:41:04,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2023-11-29 02:41:07,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:41:07,555 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:41:07,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2023-11-29 02:41:07,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data/f4f90c936/e4f84992f916445bb1bd64f6207e3049/FLAG37b56bc28 [2023-11-29 02:41:07,575 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data/f4f90c936/e4f84992f916445bb1bd64f6207e3049 [2023-11-29 02:41:07,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:41:07,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:41:07,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:41:07,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:41:07,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:41:07,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2774961c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07, skipping insertion in model container [2023-11-29 02:41:07,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:41:07,729 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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1245,1258] [2023-11-29 02:41:07,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:41:07,799 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:41:07,809 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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1245,1258] [2023-11-29 02:41:07,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:41:07,859 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:41:07,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07 WrapperNode [2023-11-29 02:41:07,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:41:07,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:41:07,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:41:07,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:41:07,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,931 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 326 [2023-11-29 02:41:07,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:41:07,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:41:07,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:41:07,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:41:07,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,976 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 02:41:07,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:07,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:08,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:08,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:08,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:41:08,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:41:08,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:41:08,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:41:08,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (1/1) ... [2023-11-29 02:41:08,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:41:08,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:08,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:41:08,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:41:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:41:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:41:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:41:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:41:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:41:08,184 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:41:08,186 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:41:08,611 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:41:08,637 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:41:08,637 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:41:08,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:08 BoogieIcfgContainer [2023-11-29 02:41:08,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:41:08,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:41:08,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:41:08,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:41:08,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:41:07" (1/3) ... [2023-11-29 02:41:08,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7281e014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:41:08, skipping insertion in model container [2023-11-29 02:41:08,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:07" (2/3) ... [2023-11-29 02:41:08,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7281e014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:41:08, skipping insertion in model container [2023-11-29 02:41:08,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:08" (3/3) ... [2023-11-29 02:41:08,646 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal58.c [2023-11-29 02:41:08,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:41:08,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:41:08,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:41:08,720 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;@36161d27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:41:08,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:41:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 49 states have internal predecessors, (80), 0 states have call successors, (0), 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 02:41:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 02:41:08,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:08,732 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 02:41:08,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:08,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:08,738 INFO L85 PathProgramCache]: Analyzing trace with hash -927131471, now seen corresponding path program 1 times [2023-11-29 02:41:08,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:08,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711974053] [2023-11-29 02:41:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:08,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:09,201 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 02:41:09,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:09,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711974053] [2023-11-29 02:41:09,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711974053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:09,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:09,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:41:09,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842418181] [2023-11-29 02:41:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:09,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:09,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:09,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:09,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:09,240 INFO L87 Difference]: Start difference. First operand has 50 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 49 states have internal predecessors, (80), 0 states have call successors, (0), 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 6.5) internal successors, (26), 4 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 02:41:09,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:09,283 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2023-11-29 02:41:09,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:09,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 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 02:41:09,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:09,293 INFO L225 Difference]: With dead ends: 87 [2023-11-29 02:41:09,294 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 02:41:09,296 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 02:41:09,300 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 1 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 214 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 02:41:09,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 214 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:09,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 02:41:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-29 02:41:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.5918367346938775) internal successors, (78), 49 states have internal predecessors, (78), 0 states have call successors, (0), 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 02:41:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 78 transitions. [2023-11-29 02:41:09,336 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 78 transitions. Word has length 26 [2023-11-29 02:41:09,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:09,337 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 78 transitions. [2023-11-29 02:41:09,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 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 02:41:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 78 transitions. [2023-11-29 02:41:09,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 02:41:09,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:09,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:09,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:41:09,339 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:09,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:09,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1325420551, now seen corresponding path program 1 times [2023-11-29 02:41:09,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:09,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686524182] [2023-11-29 02:41:09,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:09,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:09,484 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 02:41:09,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:09,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686524182] [2023-11-29 02:41:09,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686524182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:09,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:09,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:41:09,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161762904] [2023-11-29 02:41:09,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:09,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:09,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:09,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:09,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:09,487 INFO L87 Difference]: Start difference. First operand 50 states and 78 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 02:41:09,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:09,516 INFO L93 Difference]: Finished difference Result 90 states and 139 transitions. [2023-11-29 02:41:09,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:09,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-29 02:41:09,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:09,517 INFO L225 Difference]: With dead ends: 90 [2023-11-29 02:41:09,518 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 02:41:09,518 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 02:41:09,519 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 1 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 212 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 02:41:09,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 212 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 02:41:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2023-11-29 02:41:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 51 states have internal predecessors, (80), 0 states have call successors, (0), 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 02:41:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 80 transitions. [2023-11-29 02:41:09,527 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 80 transitions. Word has length 27 [2023-11-29 02:41:09,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:09,527 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 80 transitions. [2023-11-29 02:41:09,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 02:41:09,528 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 80 transitions. [2023-11-29 02:41:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 02:41:09,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:09,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:09,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:41:09,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:09,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:09,530 INFO L85 PathProgramCache]: Analyzing trace with hash -297060851, now seen corresponding path program 1 times [2023-11-29 02:41:09,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:09,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952030541] [2023-11-29 02:41:09,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:09,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:09,841 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 02:41:09,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:09,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952030541] [2023-11-29 02:41:09,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952030541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:09,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:09,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:41:09,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541242420] [2023-11-29 02:41:09,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:09,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:41:09,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:09,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:41:09,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:41:09,845 INFO L87 Difference]: Start difference. First operand 52 states and 80 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 02:41:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:09,990 INFO L93 Difference]: Finished difference Result 143 states and 219 transitions. [2023-11-29 02:41:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:41:09,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2023-11-29 02:41:09,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:09,992 INFO L225 Difference]: With dead ends: 143 [2023-11-29 02:41:09,992 INFO L226 Difference]: Without dead ends: 104 [2023-11-29 02:41:09,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:41:09,994 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 295 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:09,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 292 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:09,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-29 02:41:10,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 66. [2023-11-29 02:41:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 65 states have internal predecessors, (102), 0 states have call successors, (0), 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 02:41:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 102 transitions. [2023-11-29 02:41:10,005 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 102 transitions. Word has length 28 [2023-11-29 02:41:10,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:10,005 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 102 transitions. [2023-11-29 02:41:10,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 02:41:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 102 transitions. [2023-11-29 02:41:10,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 02:41:10,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:10,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:10,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:41:10,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:10,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:10,007 INFO L85 PathProgramCache]: Analyzing trace with hash -729658193, now seen corresponding path program 1 times [2023-11-29 02:41:10,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:10,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485621284] [2023-11-29 02:41:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:10,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:10,286 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 02:41:10,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:10,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485621284] [2023-11-29 02:41:10,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485621284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:10,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:10,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:41:10,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370196008] [2023-11-29 02:41:10,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:10,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:41:10,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:10,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:41:10,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:41:10,289 INFO L87 Difference]: Start difference. First operand 66 states and 102 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 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 02:41:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:10,565 INFO L93 Difference]: Finished difference Result 175 states and 267 transitions. [2023-11-29 02:41:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:41:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2023-11-29 02:41:10,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:10,567 INFO L225 Difference]: With dead ends: 175 [2023-11-29 02:41:10,567 INFO L226 Difference]: Without dead ends: 136 [2023-11-29 02:41:10,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:41:10,569 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 483 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:10,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 461 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-29 02:41:10,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 69. [2023-11-29 02:41:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.5588235294117647) internal successors, (106), 68 states have internal predecessors, (106), 0 states have call successors, (0), 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 02:41:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 106 transitions. [2023-11-29 02:41:10,578 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 106 transitions. Word has length 29 [2023-11-29 02:41:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:10,579 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 106 transitions. [2023-11-29 02:41:10,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 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 02:41:10,579 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 106 transitions. [2023-11-29 02:41:10,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 02:41:10,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:10,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:10,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:41:10,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:10,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:10,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1122685203, now seen corresponding path program 1 times [2023-11-29 02:41:10,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:10,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650870454] [2023-11-29 02:41:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:10,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:41:10,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:41:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:41:10,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:41:10,679 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:41:10,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:41:10,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:41:10,684 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 02:41:10,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:41:10,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 02:41:10,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 02:41:10,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 02:41:10,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 02:41:10,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-29 02:41:10,714 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 02:41:10,714 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-29 02:41:10,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-29 02:41:10,716 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 02:41:10,716 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-29 02:41:10,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-29 02:41:10,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 02:41:10,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-29 02:41:10,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-29 02:41:10,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-29 02:41:10,725 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-29 02:41:10,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:41:10 BoogieIcfgContainer [2023-11-29 02:41:10,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:41:10,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:41:10,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:41:10,738 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:41:10,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:08" (3/4) ... [2023-11-29 02:41:10,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:41:10,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:41:10,742 INFO L158 Benchmark]: Toolchain (without parser) took 3162.57ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 109.3MB in the beginning and 80.0MB in the end (delta: 29.3MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2023-11-29 02:41:10,742 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:41:10,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.26ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 94.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 02:41:10,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.98ms. Allocated memory is still 144.7MB. Free memory was 94.6MB in the beginning and 88.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 02:41:10,743 INFO L158 Benchmark]: Boogie Preprocessor took 85.95ms. Allocated memory is still 144.7MB. Free memory was 88.3MB in the beginning and 83.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:41:10,744 INFO L158 Benchmark]: RCFGBuilder took 619.21ms. Allocated memory is still 144.7MB. Free memory was 83.1MB in the beginning and 98.9MB in the end (delta: -15.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-29 02:41:10,744 INFO L158 Benchmark]: TraceAbstraction took 2097.02ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 98.0MB in the beginning and 80.0MB in the end (delta: 18.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-29 02:41:10,745 INFO L158 Benchmark]: Witness Printer took 3.51ms. Allocated memory is still 174.1MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:41:10,747 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.26ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 94.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.98ms. Allocated memory is still 144.7MB. Free memory was 94.6MB in the beginning and 88.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.95ms. Allocated memory is still 144.7MB. Free memory was 88.3MB in the beginning and 83.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 619.21ms. Allocated memory is still 144.7MB. Free memory was 83.1MB in the beginning and 98.9MB in the end (delta: -15.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2097.02ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 98.0MB in the beginning and 80.0MB in the end (delta: 18.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 3.51ms. Allocated memory is still 174.1MB. Free memory is still 80.0MB. 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~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 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 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 bitwiseOr at line 96, overapproximation of bitwiseAnd at line 101. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L32] const SORT_1 var_11 = 0; [L33] const SORT_5 var_15 = 0; [L34] const SORT_5 var_21 = 4; [L35] const SORT_1 var_31 = 1; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L39] SORT_1 input_4; [L40] SORT_5 input_6; [L41] SORT_5 input_7; [L42] SORT_1 input_8; [L43] SORT_5 input_9; [L44] SORT_5 input_10; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, var_11=0, var_15=0, var_21=4, var_31=1] [L46] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, var_11=0, var_15=0, var_21=4, var_31=1] [L47] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, var_11=0, var_15=0, var_21=4, var_31=1] [L48] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, var_11=0, var_15=0, var_21=4, var_31=1] [L49] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] SORT_1 init_13_arg_1 = var_11; [L52] state_12 = init_13_arg_1 [L53] SORT_5 init_17_arg_1 = var_15; [L54] state_16 = init_17_arg_1 [L55] SORT_1 init_19_arg_1 = var_11; [L56] state_18 = init_19_arg_1 [L57] SORT_5 init_24_arg_1 = var_15; [L58] state_23 = init_24_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_15=0, var_21=4, var_31=1] [L61] input_2 = __VERIFIER_nondet_uchar() [L62] EXPR input_2 & mask_SORT_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_15=0, var_21=4, var_31=1] [L62] input_2 = input_2 & mask_SORT_1 [L63] input_3 = __VERIFIER_nondet_uchar() [L64] EXPR input_3 & mask_SORT_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_15=0, var_21=4, var_31=1] [L64] input_3 = input_3 & mask_SORT_1 [L65] input_4 = __VERIFIER_nondet_uchar() [L66] input_6 = __VERIFIER_nondet_uchar() [L67] input_7 = __VERIFIER_nondet_uchar() [L68] input_8 = __VERIFIER_nondet_uchar() [L69] input_9 = __VERIFIER_nondet_uchar() [L70] input_10 = __VERIFIER_nondet_uchar() [L73] SORT_1 var_14_arg_0 = state_12; [L74] SORT_1 var_14 = ~var_14_arg_0; [L75] SORT_1 var_20_arg_0 = state_18; [L76] SORT_5 var_20_arg_1 = state_16; [L77] SORT_5 var_20_arg_2 = input_7; [L78] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_31=1] [L79] EXPR var_20 & mask_SORT_5 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_31=1] [L79] var_20 = var_20 & mask_SORT_5 [L80] SORT_5 var_22_arg_0 = var_20; [L81] SORT_5 var_22_arg_1 = var_21; [L82] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L83] SORT_1 var_25_arg_0 = state_18; [L84] SORT_5 var_25_arg_1 = state_23; [L85] SORT_5 var_25_arg_2 = input_7; [L86] SORT_5 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_22=0, var_22_arg_0=0, var_22_arg_1=4, var_25=0, var_25_arg_0=0, var_25_arg_1=0, var_25_arg_2=0, var_31=1] [L87] EXPR var_25 & mask_SORT_5 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_22=0, var_22_arg_0=0, var_22_arg_1=4, var_25=0, var_25_arg_0=0, var_25_arg_1=0, var_25_arg_2=0, var_31=1] [L87] var_25 = var_25 & mask_SORT_5 [L88] SORT_5 var_26_arg_0 = var_25; [L89] SORT_5 var_26_arg_1 = var_21; [L90] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L91] SORT_1 var_27_arg_0 = var_22; [L92] SORT_1 var_27_arg_1 = var_26; [L93] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L94] SORT_1 var_28_arg_0 = var_14; [L95] SORT_1 var_28_arg_1 = var_27; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_22=0, var_22_arg_0=0, var_22_arg_1=4, var_25=0, var_25_arg_0=0, var_25_arg_1=0, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=4, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_28_arg_0=255, var_28_arg_1=1, var_31=1] [L96] EXPR var_28_arg_0 | var_28_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_22=0, var_22_arg_0=0, var_22_arg_1=4, var_25=0, var_25_arg_0=0, var_25_arg_1=0, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=4, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_28_arg_0=255, var_28_arg_1=1, var_31=1] [L96] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L97] SORT_1 var_32_arg_0 = var_28; [L98] SORT_1 var_32 = ~var_32_arg_0; [L99] SORT_1 var_33_arg_0 = var_31; [L100] SORT_1 var_33_arg_1 = var_32; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_22=0, var_22_arg_0=0, var_22_arg_1=4, var_25=0, var_25_arg_0=0, var_25_arg_1=0, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=4, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_28_arg_0=255, var_28_arg_1=1, var_31=1, var_32=255, var_32_arg_0=0, var_33_arg_0=1, var_33_arg_1=255] [L101] EXPR var_33_arg_0 & var_33_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_22=0, var_22_arg_0=0, var_22_arg_1=4, var_25=0, var_25_arg_0=0, var_25_arg_1=0, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=4, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_28_arg_0=255, var_28_arg_1=1, var_31=1, var_32=255, var_32_arg_0=0, var_33_arg_0=1, var_33_arg_1=255] [L101] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L102] EXPR var_33 & mask_SORT_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=4, var_22=0, var_22_arg_0=0, var_22_arg_1=4, var_25=0, var_25_arg_0=0, var_25_arg_1=0, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=4, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_28=0, var_28_arg_0=255, var_28_arg_1=1, var_31=1, var_32=255, var_32_arg_0=0, var_33=1, var_33_arg_0=1, var_33_arg_1=255] [L102] var_33 = var_33 & mask_SORT_1 [L103] SORT_1 bad_34_arg_0 = var_33; [L104] CALL __VERIFIER_assert(!(bad_34_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, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 780 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 780 mSDsluCounter, 1179 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 857 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 322 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=4, InterpolantAutomatonStates: 29, 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, 4 MinimizatonAttempts, 106 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 310 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 02:41:10,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 716547a7fbdfceb31d193aabba3879422257a24dd737c70a32b939b695035c3c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:41:12,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:41:12,681 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 02:41:12,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:41:12,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:41:12,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:41:12,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:41:12,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:41:12,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:41:12,715 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:41:12,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:41:12,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:41:12,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:41:12,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:41:12,717 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:41:12,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:41:12,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:41:12,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:41:12,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:41:12,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:41:12,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:41:12,721 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:41:12,721 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:41:12,722 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:41:12,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:41:12,722 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:41:12,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:41:12,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:41:12,724 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:41:12,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:41:12,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:41:12,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:41:12,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:41:12,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:41:12,726 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:41:12,726 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:41:12,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:41:12,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:41:12,727 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:41:12,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:41:12,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:41:12,727 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:41:12,728 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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716547a7fbdfceb31d193aabba3879422257a24dd737c70a32b939b695035c3c [2023-11-29 02:41:13,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:41:13,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:41:13,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:41:13,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:41:13,045 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:41:13,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2023-11-29 02:41:15,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:41:15,940 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:41:15,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2023-11-29 02:41:15,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data/a92d288dd/aaa45f85ffdd4befbd2ddf8310101373/FLAG5cc5a9138 [2023-11-29 02:41:15,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/data/a92d288dd/aaa45f85ffdd4befbd2ddf8310101373 [2023-11-29 02:41:15,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:41:15,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:41:15,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:41:15,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:41:15,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:41:15,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:41:15" (1/1) ... [2023-11-29 02:41:15,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2df93c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:15, skipping insertion in model container [2023-11-29 02:41:15,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:41:15" (1/1) ... [2023-11-29 02:41:15,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:41:16,115 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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1245,1258] [2023-11-29 02:41:16,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:41:16,173 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:41:16,196 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_b54b18e6-1e4c-40e8-a575-65f9a0ace190/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1245,1258] [2023-11-29 02:41:16,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:41:16,240 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:41:16,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16 WrapperNode [2023-11-29 02:41:16,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:41:16,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:41:16,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:41:16,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:41:16,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,288 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 186 [2023-11-29 02:41:16,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:41:16,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:41:16,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:41:16,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:41:16,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,306 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,320 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 02:41:16,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:41:16,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:41:16,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:41:16,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:41:16,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (1/1) ... [2023-11-29 02:41:16,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:41:16,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:16,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:41:16,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:41:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:41:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:41:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 02:41:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:41:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:41:16,505 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:41:16,507 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:41:16,702 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:41:16,736 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:41:16,736 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:41:16,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:16 BoogieIcfgContainer [2023-11-29 02:41:16,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:41:16,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:41:16,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:41:16,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:41:16,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:41:15" (1/3) ... [2023-11-29 02:41:16,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e12f536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:41:16, skipping insertion in model container [2023-11-29 02:41:16,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:16" (2/3) ... [2023-11-29 02:41:16,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e12f536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:41:16, skipping insertion in model container [2023-11-29 02:41:16,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:16" (3/3) ... [2023-11-29 02:41:16,747 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal58.c [2023-11-29 02:41:16,766 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:41:16,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:41:16,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:41:16,820 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;@734b8bfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:41:16,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:41:16,824 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 02:41:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 02:41:16,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:16,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 02:41:16,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:16,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-29 02:41:16,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:41:16,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924140255] [2023-11-29 02:41:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:16,856 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 02:41:16,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:41:16,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:16,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:16,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:41:16,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:17,151 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 02:41:17,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:41:17,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:41:17,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924140255] [2023-11-29 02:41:17,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924140255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:17,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:17,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:17,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528383358] [2023-11-29 02:41:17,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:17,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:17,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:41:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:17,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:17,189 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 02:41:17,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:17,246 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-29 02:41:17,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:17,249 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 02:41:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:17,256 INFO L225 Difference]: With dead ends: 16 [2023-11-29 02:41:17,256 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 02:41:17,259 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 02:41:17,262 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 02:41:17,263 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 02:41:17,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 02:41:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-29 02:41:17,290 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 02:41:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-29 02:41:17,291 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-29 02:41:17,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:17,292 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-29 02:41:17,292 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 02:41:17,292 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-29 02:41:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 02:41:17,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:17,293 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-29 02:41:17,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:17,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:17,494 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:17,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-29 02:41:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:41:17,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676353013] [2023-11-29 02:41:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:17,495 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 02:41:17,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:41:17,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:17,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:17,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-29 02:41:17,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:18,037 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 02:41:18,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:19,228 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 02:41:19,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:41:19,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676353013] [2023-11-29 02:41:19,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676353013] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:41:19,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:41:19,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:41:19,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795267148] [2023-11-29 02:41:19,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:19,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:41:19,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:41:19,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:41:19,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:41:19,232 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 02:41:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:19,357 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-29 02:41:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:41:19,357 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 02:41:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:19,358 INFO L225 Difference]: With dead ends: 14 [2023-11-29 02:41:19,358 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 02:41:19,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:41:19,360 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:19,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:19,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 02:41:19,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-29 02:41:19,364 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 02:41:19,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-29 02:41:19,365 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-29 02:41:19,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:19,365 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-29 02:41:19,365 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 02:41:19,365 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-29 02:41:19,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 02:41:19,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:19,366 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-29 02:41:19,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:19,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:19,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:41:19,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-29 02:41:19,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:41:19,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923902647] [2023-11-29 02:41:19,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:41:19,570 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 02:41:19,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:41:19,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:19,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:41:19,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:41:19,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:41:19,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-29 02:41:19,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:21,682 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:21,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:42:07,578 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 479 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:42:48,244 WARN L293 SmtUtils]: Spent 20.41s on a formula simplification. DAG size of input: 532 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:43:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:43:32,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:43:32,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923902647] [2023-11-29 02:43:32,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923902647] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:43:32,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:43:32,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 02:43:32,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076599086] [2023-11-29 02:43:32,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:43:32,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:43:32,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:43:32,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:43:32,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:43:32,678 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:43:33,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:43:33,233 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-29 02:43:33,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:43:33,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 02:43:33,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:43:33,234 INFO L225 Difference]: With dead ends: 12 [2023-11-29 02:43:33,234 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:43:33,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 29.5s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:43:33,236 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:43:33,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:43:33,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:43:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:43:33,237 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 02:43:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:43:33,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-29 02:43:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:43:33,238 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:43:33,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:43:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:43:33,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:43:33,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:43:33,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:43:33,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/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 02:43:33,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:43:33,604 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:43:33,605 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-29 02:43:33,605 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-29 02:43:33,605 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-29 02:43:33,605 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:43:33,606 INFO L895 garLoopResultBuilder]: At program point L59-2(lines 59 170) the Hoare annotation is: (let ((.cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv4 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse2 (= (_ bv1 8) |ULTIMATE.start_main_~state_12~0#1|)) (.cse3 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~var_31~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 8))) (.cse7 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv0 8)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse3 .cse4 (= (_ bv0 8) |ULTIMATE.start_main_~state_12~0#1|) .cse5 .cse6 .cse7) (and (exists ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8))) (let ((.cse8 ((_ 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) |ULTIMATE.start_main_~input_6~0#1|)))))))))))) (and (= |ULTIMATE.start_main_~state_23~0#1| .cse8) (= .cse8 |ULTIMATE.start_main_~state_16~0#1|)))) (exists ((|v_ULTIMATE.start_main_#t~nondet9#1_20| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet9#1_20|) (_ bv1 32))) |ULTIMATE.start_main_~input_3~0#1|)) .cse0 .cse1 (exists ((|v_ULTIMATE.start_main_#t~nondet8#1_20| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet8#1_20|) (_ bv1 32))) |ULTIMATE.start_main_~input_2~0#1|)) (exists ((|ULTIMATE.start_main_~var_25_arg_2~0#1| (_ BitVec 8))) (let ((.cse9 ((_ extract 7 0) (bvand (_ bv7 32) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_25_arg_2~0#1|))))))) (and (= |ULTIMATE.start_main_~var_20~0#1| .cse9) (= |ULTIMATE.start_main_~var_25~0#1| .cse9)))) .cse2 (= (_ bv1 8) |ULTIMATE.start_main_~state_18~0#1|) .cse3 .cse4 .cse6 .cse7))) [2023-11-29 02:43:33,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-29 02:43:33,606 INFO L899 garLoopResultBuilder]: For program point L59-3(lines 59 170) no Hoare annotation was computed. [2023-11-29 02:43:33,608 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-29 02:43:33,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:43:33,620 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~input_6~0#1 : bv8 :: ~state_23~0 == ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~input_6~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] && ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~input_6~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == ~state_16~0) could not be translated [2023-11-29 02:43:33,620 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet9#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet9#1_20), 1bv32)[7:0] == ~input_3~0) could not be translated [2023-11-29 02:43:33,621 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet8#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet8#1_20), 1bv32)[7:0] == ~input_2~0) could not be translated [2023-11-29 02:43:33,621 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_25_arg_2~0#1 : bv8 :: ~var_20~0 == ~bvand~32(7bv32, ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] && ~var_25~0 == ~bvand~32(7bv32, ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0]) could not be translated [2023-11-29 02:43:33,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:43:33 BoogieIcfgContainer [2023-11-29 02:43:33,622 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:43:33,622 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:43:33,622 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:43:33,622 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:43:33,623 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:16" (3/4) ... [2023-11-29 02:43:33,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:43:33,633 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-29 02:43:33,634 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 02:43:33,634 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 02:43:33,635 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:43:33,635 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:43:33,763 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:43:33,763 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:43:33,763 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:43:33,764 INFO L158 Benchmark]: Toolchain (without parser) took 137796.82ms. Allocated memory was 75.5MB in the beginning and 780.1MB in the end (delta: 704.6MB). Free memory was 47.4MB in the beginning and 748.8MB in the end (delta: -701.4MB). Peak memory consumption was 251.6MB. Max. memory is 16.1GB. [2023-11-29 02:43:33,764 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:43:33,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.17ms. Allocated memory is still 75.5MB. Free memory was 47.2MB in the beginning and 52.9MB in the end (delta: -5.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 02:43:33,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.30ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 50.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:43:33,765 INFO L158 Benchmark]: Boogie Preprocessor took 50.05ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 47.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:43:33,766 INFO L158 Benchmark]: RCFGBuilder took 397.56ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 47.7MB in the beginning and 74.3MB in the end (delta: -26.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-29 02:43:33,766 INFO L158 Benchmark]: TraceAbstraction took 136881.74ms. Allocated memory was 102.8MB in the beginning and 780.1MB in the end (delta: 677.4MB). Free memory was 73.3MB in the beginning and 504.6MB in the end (delta: -431.3MB). Peak memory consumption was 247.0MB. Max. memory is 16.1GB. [2023-11-29 02:43:33,767 INFO L158 Benchmark]: Witness Printer took 141.21ms. Allocated memory is still 780.1MB. Free memory was 504.6MB in the beginning and 748.8MB in the end (delta: -244.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:43:33,769 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.17ms. Allocated memory is still 75.5MB. Free memory was 47.2MB in the beginning and 52.9MB in the end (delta: -5.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.30ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 50.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.05ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 47.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.56ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 47.7MB in the beginning and 74.3MB in the end (delta: -26.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 136881.74ms. Allocated memory was 102.8MB in the beginning and 780.1MB in the end (delta: 677.4MB). Free memory was 73.3MB in the beginning and 504.6MB in the end (delta: -431.3MB). Peak memory consumption was 247.0MB. Max. memory is 16.1GB. * Witness Printer took 141.21ms. Allocated memory is still 780.1MB. Free memory was 504.6MB in the beginning and 748.8MB in the end (delta: -244.2MB). Peak memory consumption was 4.2MB. 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_~input_6~0#1 : bv8 :: ~state_23~0 == ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~input_6~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] && ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~input_6~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == ~state_16~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet9#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet9#1_20), 1bv32)[7:0] == ~input_3~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet8#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet8#1_20), 1bv32)[7:0] == ~input_2~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_25_arg_2~0#1 : bv8 :: ~var_20~0 == ~bvand~32(7bv32, ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] && ~var_25~0 == ~bvand~32(7bv32, ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0]) 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: 136.8s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 4 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 29.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 140 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 134.7s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 14 QuantifiedInterpolants, 162097 SizeOfPredicates, 158 NumberOfNonLiveVariables, 489 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 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: 59]: Loop Invariant Derived loop invariant: ((((((((((1 == mask_SORT_1) && (4 == var_21)) && (1 == state_12)) && (7 == mask_SORT_5)) && (1 == var_31)) && (0 == state_18)) && (var_15 == 0)) && (var_11 == 0)) || ((((((((1 == mask_SORT_1) && (4 == var_21)) && (7 == mask_SORT_5)) && (1 == var_31)) && (0 == state_12)) && (0 == state_18)) && (var_15 == 0)) && (var_11 == 0))) || ((((((((1 == mask_SORT_1) && (4 == var_21)) && (1 == state_12)) && (1 == state_18)) && (7 == mask_SORT_5)) && (1 == var_31)) && (var_15 == 0)) && (var_11 == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:43:33,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54b18e6-1e4c-40e8-a575-65f9a0ace190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE