./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:56:15,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:56:15,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 01:56:15,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:56:15,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:56:15,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:56:15,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:56:15,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:56:15,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:56:15,768 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:56:15,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:56:15,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:56:15,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:56:15,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:56:15,771 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:56:15,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:56:15,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:56:15,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:56:15,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:56:15,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:56:15,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:56:15,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:56:15,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:56:15,776 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:56:15,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:56:15,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:56:15,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:56:15,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:56:15,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:56:15,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:56:15,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:56:15,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:56:15,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:56:15,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:56:15,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:56:15,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:56:15,782 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:56:15,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:56:15,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:56:15,783 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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 [2023-11-29 01:56:15,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:56:16,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:56:16,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:56:16,007 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:56:16,008 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:56:16,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-29 01:56:18,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:56:18,997 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:56:18,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-29 01:56:19,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data/458a9bc60/53df51cf1e184bb0aed818fb33c94def/FLAG6a5d7630e [2023-11-29 01:56:19,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data/458a9bc60/53df51cf1e184bb0aed818fb33c94def [2023-11-29 01:56:19,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:56:19,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:56:19,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:56:19,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:56:19,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:56:19,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd040e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19, skipping insertion in model container [2023-11-29 01:56:19,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:56:19,227 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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-29 01:56:19,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:56:19,296 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:56:19,310 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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-29 01:56:19,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:56:19,358 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:56:19,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19 WrapperNode [2023-11-29 01:56:19,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:56:19,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:56:19,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:56:19,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:56:19,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,434 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 327 [2023-11-29 01:56:19,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:56:19,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:56:19,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:56:19,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:56:19,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,479 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 01:56:19,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:56:19,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:56:19,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:56:19,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:56:19,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (1/1) ... [2023-11-29 01:56:19,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:56:19,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:19,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:56:19,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:56:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:56:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:56:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:56:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:56:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:56:19,710 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:56:19,712 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:56:20,129 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:56:20,155 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:56:20,155 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:56:20,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:20 BoogieIcfgContainer [2023-11-29 01:56:20,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:56:20,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:56:20,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:56:20,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:56:20,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:56:19" (1/3) ... [2023-11-29 01:56:20,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3497d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:56:20, skipping insertion in model container [2023-11-29 01:56:20,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:19" (2/3) ... [2023-11-29 01:56:20,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3497d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:56:20, skipping insertion in model container [2023-11-29 01:56:20,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:20" (3/3) ... [2023-11-29 01:56:20,165 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal25.c [2023-11-29 01:56:20,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:56:20,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:56:20,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:56:20,227 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;@5da63dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:56:20,227 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:56:20,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6666666666666667) internal successors, (85), 52 states have internal predecessors, (85), 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 01:56:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 01:56:20,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:20,239 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 01:56:20,240 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:20,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash -554893787, now seen corresponding path program 1 times [2023-11-29 01:56:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:20,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893893428] [2023-11-29 01:56:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:20,771 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 01:56:20,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:20,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893893428] [2023-11-29 01:56:20,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893893428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:20,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:20,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:56:20,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592573910] [2023-11-29 01:56:20,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:20,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:20,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:20,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:20,814 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6666666666666667) internal successors, (85), 52 states have internal predecessors, (85), 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 01:56:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:20,863 INFO L93 Difference]: Finished difference Result 93 states and 151 transitions. [2023-11-29 01:56:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:20,865 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 01:56:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:20,874 INFO L225 Difference]: With dead ends: 93 [2023-11-29 01:56:20,874 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 01:56:20,877 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 01:56:20,881 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 1 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 229 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 01:56:20,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 229 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:56:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 01:56:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-29 01:56:20,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 52 states have internal predecessors, (83), 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 01:56:20,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 83 transitions. [2023-11-29 01:56:20,919 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 83 transitions. Word has length 26 [2023-11-29 01:56:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:20,919 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 83 transitions. [2023-11-29 01:56:20,920 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 01:56:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 83 transitions. [2023-11-29 01:56:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 01:56:20,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:20,921 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 01:56:20,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:56:20,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:20,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash -20113133, now seen corresponding path program 1 times [2023-11-29 01:56:20,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:20,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347509630] [2023-11-29 01:56:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:20,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:21,065 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 01:56:21,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:21,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347509630] [2023-11-29 01:56:21,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347509630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:21,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:21,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:56:21,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019313344] [2023-11-29 01:56:21,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:21,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:21,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:21,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:21,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:21,069 INFO L87 Difference]: Start difference. First operand 53 states and 83 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 01:56:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:21,100 INFO L93 Difference]: Finished difference Result 96 states and 149 transitions. [2023-11-29 01:56:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:21,100 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 01:56:21,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:21,102 INFO L225 Difference]: With dead ends: 96 [2023-11-29 01:56:21,102 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 01:56:21,103 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 01:56:21,104 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 1 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 227 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 01:56:21,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 227 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:56:21,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 01:56:21,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2023-11-29 01:56:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 54 states have internal predecessors, (85), 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 01:56:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 85 transitions. [2023-11-29 01:56:21,113 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 85 transitions. Word has length 27 [2023-11-29 01:56:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:21,113 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 85 transitions. [2023-11-29 01:56:21,114 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 01:56:21,114 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 85 transitions. [2023-11-29 01:56:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 01:56:21,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:21,115 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 01:56:21,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:56:21,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:21,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash 941067905, now seen corresponding path program 1 times [2023-11-29 01:56:21,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:21,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083123443] [2023-11-29 01:56:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:21,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:21,434 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 01:56:21,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:21,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083123443] [2023-11-29 01:56:21,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083123443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:21,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:21,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:56:21,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024438026] [2023-11-29 01:56:21,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:21,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:56:21,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:21,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:56:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:56:21,438 INFO L87 Difference]: Start difference. First operand 55 states and 85 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 01:56:21,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:21,608 INFO L93 Difference]: Finished difference Result 152 states and 234 transitions. [2023-11-29 01:56:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:56:21,609 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 01:56:21,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:21,610 INFO L225 Difference]: With dead ends: 152 [2023-11-29 01:56:21,610 INFO L226 Difference]: Without dead ends: 110 [2023-11-29 01:56:21,611 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 01:56:21,613 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 320 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:21,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 308 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-29 01:56:21,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 69. [2023-11-29 01:56:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.5735294117647058) internal successors, (107), 68 states have internal predecessors, (107), 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 01:56:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 107 transitions. [2023-11-29 01:56:21,624 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 107 transitions. Word has length 28 [2023-11-29 01:56:21,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:21,624 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 107 transitions. [2023-11-29 01:56:21,625 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 01:56:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 107 transitions. [2023-11-29 01:56:21,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:56:21,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:21,626 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 01:56:21,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:56:21,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:21,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1002372421, now seen corresponding path program 1 times [2023-11-29 01:56:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:21,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271954312] [2023-11-29 01:56:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:21,879 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 01:56:21,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:21,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271954312] [2023-11-29 01:56:21,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271954312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:21,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:21,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:56:21,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139891494] [2023-11-29 01:56:21,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:21,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:56:21,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:21,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:56:21,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:56:21,882 INFO L87 Difference]: Start difference. First operand 69 states and 107 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 01:56:22,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:22,148 INFO L93 Difference]: Finished difference Result 187 states and 287 transitions. [2023-11-29 01:56:22,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:56:22,149 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 01:56:22,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:22,151 INFO L225 Difference]: With dead ends: 187 [2023-11-29 01:56:22,151 INFO L226 Difference]: Without dead ends: 145 [2023-11-29 01:56:22,152 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 01:56:22,153 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 533 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:22,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 485 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:22,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-29 01:56:22,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 72. [2023-11-29 01:56:22,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 71 states have internal predecessors, (111), 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 01:56:22,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 111 transitions. [2023-11-29 01:56:22,163 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 111 transitions. Word has length 29 [2023-11-29 01:56:22,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:22,164 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 111 transitions. [2023-11-29 01:56:22,164 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 01:56:22,164 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 111 transitions. [2023-11-29 01:56:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:56:22,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:22,166 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 01:56:22,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:56:22,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:22,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1395399431, now seen corresponding path program 1 times [2023-11-29 01:56:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:22,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290952940] [2023-11-29 01:56:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:22,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:56:22,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:56:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:56:22,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:56:22,247 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:56:22,248 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:56:22,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:56:22,252 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 01:56:22,255 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:56:22,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 01:56:22,281 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 01:56:22,281 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 01:56:22,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 01:56:22,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 01:56:22,282 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-29 01:56:22,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-29 01:56:22,283 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-29 01:56:22,284 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 01:56:22,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-29 01:56:22,286 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-29 01:56:22,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-29 01:56:22,290 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 01:56:22,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-29 01:56:22,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-29 01:56:22,294 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-29 01:56:22,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:56:22 BoogieIcfgContainer [2023-11-29 01:56:22,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:56:22,306 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:56:22,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:56:22,307 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:56:22,307 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:20" (3/4) ... [2023-11-29 01:56:22,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:56:22,310 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:56:22,311 INFO L158 Benchmark]: Toolchain (without parser) took 3284.04ms. Allocated memory is still 218.1MB. Free memory was 182.4MB in the beginning and 111.5MB in the end (delta: 70.9MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2023-11-29 01:56:22,312 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:56:22,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.27ms. Allocated memory is still 218.1MB. Free memory was 182.4MB in the beginning and 167.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 01:56:22,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.81ms. Allocated memory is still 218.1MB. Free memory was 167.8MB in the beginning and 161.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 01:56:22,313 INFO L158 Benchmark]: Boogie Preprocessor took 95.37ms. Allocated memory is still 218.1MB. Free memory was 161.5MB in the beginning and 156.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:56:22,313 INFO L158 Benchmark]: RCFGBuilder took 624.48ms. Allocated memory is still 218.1MB. Free memory was 156.6MB in the beginning and 121.0MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-29 01:56:22,314 INFO L158 Benchmark]: TraceAbstraction took 2147.00ms. Allocated memory is still 218.1MB. Free memory was 120.2MB in the beginning and 112.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-11-29 01:56:22,314 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 218.1MB. Free memory was 112.6MB in the beginning and 111.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:56:22,317 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 113.2MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.27ms. Allocated memory is still 218.1MB. Free memory was 182.4MB in the beginning and 167.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.81ms. Allocated memory is still 218.1MB. Free memory was 167.8MB in the beginning and 161.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.37ms. Allocated memory is still 218.1MB. Free memory was 161.5MB in the beginning and 156.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 624.48ms. Allocated memory is still 218.1MB. Free memory was 156.6MB in the beginning and 121.0MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2147.00ms. Allocated memory is still 218.1MB. Free memory was 120.2MB in the beginning and 112.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 218.1MB. Free memory was 112.6MB in the beginning and 111.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 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~nondet21 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 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 92, overapproximation of bitwiseAnd at line 97. 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 - 2); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (2 - 1); [L32] const SORT_1 var_10 = 0; [L33] const SORT_5 var_14 = 0; [L34] const SORT_1 var_29 = 1; [L35] const SORT_5 var_40 = 1; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L39] SORT_1 input_4; [L40] SORT_5 input_6; [L41] SORT_1 input_7; [L42] SORT_5 input_8; [L43] SORT_5 input_9; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, var_10=0, var_14=0, var_29=1, var_40=1] [L45] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, var_10=0, var_14=0, var_29=1, var_40=1] [L46] SORT_5 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, var_10=0, var_14=0, var_29=1, var_40=1] [L47] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, var_10=0, var_14=0, var_29=1, var_40=1] [L48] SORT_5 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_1 init_12_arg_1 = var_10; [L51] state_11 = init_12_arg_1 [L52] SORT_5 init_16_arg_1 = var_14; [L53] state_15 = init_16_arg_1 [L54] SORT_1 init_18_arg_1 = var_10; [L55] state_17 = init_18_arg_1 [L56] SORT_5 init_22_arg_1 = var_14; [L57] state_21 = init_22_arg_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_40=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L61] EXPR input_2 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_40=1] [L61] input_2 = input_2 & mask_SORT_1 [L62] input_3 = __VERIFIER_nondet_uchar() [L63] EXPR input_3 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_40=1] [L63] input_3 = input_3 & mask_SORT_1 [L64] input_4 = __VERIFIER_nondet_uchar() [L65] input_6 = __VERIFIER_nondet_uchar() [L66] input_7 = __VERIFIER_nondet_uchar() [L67] input_8 = __VERIFIER_nondet_uchar() [L68] input_9 = __VERIFIER_nondet_uchar() [L71] SORT_1 var_13_arg_0 = state_11; [L72] SORT_1 var_13 = ~var_13_arg_0; [L73] SORT_1 var_19_arg_0 = state_17; [L74] SORT_5 var_19_arg_1 = state_15; [L75] SORT_5 var_19_arg_2 = input_6; [L76] SORT_5 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; [L77] SORT_5 var_20_arg_0 = var_19; [L78] SORT_1 var_20 = var_20_arg_0 >> 0; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_29=1, var_40=1] [L79] EXPR var_20 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_29=1, var_40=1] [L79] var_20 = var_20 & mask_SORT_1 [L80] SORT_1 var_23_arg_0 = state_17; [L81] SORT_5 var_23_arg_1 = state_21; [L82] SORT_5 var_23_arg_2 = input_6; [L83] SORT_5 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L84] SORT_5 var_24_arg_0 = var_23; [L85] SORT_1 var_24 = var_24_arg_0 >> 0; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_29=1, var_40=1] [L86] EXPR var_24 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_29=1, var_40=1] [L86] var_24 = var_24 & mask_SORT_1 [L87] SORT_1 var_25_arg_0 = var_20; [L88] SORT_1 var_25_arg_1 = var_24; [L89] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L90] SORT_1 var_26_arg_0 = var_13; [L91] SORT_1 var_26_arg_1 = var_25; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_40=1] [L92] EXPR var_26_arg_0 | var_26_arg_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_40=1] [L92] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L93] SORT_1 var_30_arg_0 = var_26; [L94] SORT_1 var_30 = ~var_30_arg_0; [L95] SORT_1 var_31_arg_0 = var_29; [L96] SORT_1 var_31_arg_1 = var_30; VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_30=255, var_30_arg_0=0, var_31_arg_0=1, var_31_arg_1=255, var_40=1] [L97] EXPR var_31_arg_0 & var_31_arg_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_30=255, var_30_arg_0=0, var_31_arg_0=1, var_31_arg_1=255, var_40=1] [L97] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L98] EXPR var_31 & mask_SORT_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, input_2=0, input_3=0, input_6=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_13=255, var_13_arg_0=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_19_arg_2=0, var_20=0, var_20_arg_0=0, var_23=0, var_23_arg_0=0, var_23_arg_1=0, var_23_arg_2=0, var_24=0, var_24_arg_0=0, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=0, var_26_arg_0=255, var_26_arg_1=1, var_29=1, var_30=255, var_30_arg_0=0, var_31=1, var_31_arg_0=1, var_31_arg_1=255, var_40=1] [L98] var_31 = var_31 & mask_SORT_1 [L99] SORT_1 bad_32_arg_0 = var_31; [L100] CALL __VERIFIER_assert(!(bad_32_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, 53 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, 855 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 855 mSDsluCounter, 1249 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 909 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 340 mSDtfsCounter, 134 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=72occurred 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, 115 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 309 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 01:56:22,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:56:24,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:56:24,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 01:56:24,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:56:24,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:56:24,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:56:24,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:56:24,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:56:24,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:56:24,466 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:56:24,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:56:24,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:56:24,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:56:24,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:56:24,470 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:56:24,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:56:24,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:56:24,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:56:24,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:56:24,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:56:24,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:56:24,474 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:56:24,474 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:56:24,475 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:56:24,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:56:24,476 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:56:24,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:56:24,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:56:24,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:56:24,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:56:24,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:56:24,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:56:24,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:56:24,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:56:24,480 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:56:24,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:56:24,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:56:24,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:56:24,481 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:56:24,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:56:24,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:56:24,482 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:56:24,482 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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2f9f17c6d1e33b7d4937d5702f73ddc421381e322ac5ad4ecf1688b251301a7 [2023-11-29 01:56:24,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:56:24,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:56:24,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:56:24,789 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:56:24,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:56:24,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-29 01:56:27,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:56:27,766 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:56:27,766 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c [2023-11-29 01:56:27,775 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data/d9761fd6f/a209389a38d04729aadaf9e961b02dda/FLAGb0124efca [2023-11-29 01:56:27,788 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/data/d9761fd6f/a209389a38d04729aadaf9e961b02dda [2023-11-29 01:56:27,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:56:27,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:56:27,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:56:27,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:56:27,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:56:27,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:56:27" (1/1) ... [2023-11-29 01:56:27,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfdf3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:27, skipping insertion in model container [2023-11-29 01:56:27,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:56:27" (1/1) ... [2023-11-29 01:56:27,828 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:56:27,958 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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-29 01:56:28,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:56:28,024 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:56:28,035 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_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal25.c[1245,1258] [2023-11-29 01:56:28,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:56:28,097 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:56:28,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28 WrapperNode [2023-11-29 01:56:28,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:56:28,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:56:28,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:56:28,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:56:28,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,150 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 177 [2023-11-29 01:56:28,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:56:28,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:56:28,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:56:28,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:56:28,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,170 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,186 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 01:56:28,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:56:28,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:56:28,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:56:28,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:56:28,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (1/1) ... [2023-11-29 01:56:28,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:56:28,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:28,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:56:28,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:56:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:56:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:56:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 01:56:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:56:28,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:56:28,372 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:56:28,375 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:56:28,592 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:56:28,632 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:56:28,633 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:56:28,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:28 BoogieIcfgContainer [2023-11-29 01:56:28,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:56:28,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:56:28,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:56:28,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:56:28,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:56:27" (1/3) ... [2023-11-29 01:56:28,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a68e771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:56:28, skipping insertion in model container [2023-11-29 01:56:28,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:28" (2/3) ... [2023-11-29 01:56:28,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a68e771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:56:28, skipping insertion in model container [2023-11-29 01:56:28,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:28" (3/3) ... [2023-11-29 01:56:28,645 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal25.c [2023-11-29 01:56:28,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:56:28,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:56:28,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:56:28,733 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;@4a660d6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:56:28,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:56:28,738 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 01:56:28,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 01:56:28,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:28,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 01:56:28,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:28,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:28,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-29 01:56:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:56:28,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085010869] [2023-11-29 01:56:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:28,766 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 01:56:28,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:56:28,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:28,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:28,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:56:28,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:29,062 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 01:56:29,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:29,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:56:29,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085010869] [2023-11-29 01:56:29,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085010869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:29,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:29,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:56:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438247973] [2023-11-29 01:56:29,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:29,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:29,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:56:29,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:29,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:29,101 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 01:56:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:29,169 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-29 01:56:29,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:29,171 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 01:56:29,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:29,179 INFO L225 Difference]: With dead ends: 16 [2023-11-29 01:56:29,179 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 01:56:29,181 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 01:56:29,185 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 01:56:29,187 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 01:56:29,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 01:56:29,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-29 01:56:29,216 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 01:56:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-29 01:56:29,218 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-29 01:56:29,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:29,219 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-29 01:56:29,219 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 01:56:29,219 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-29 01:56:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 01:56:29,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:29,220 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-29 01:56:29,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:29,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:29,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:29,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:29,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-29 01:56:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:56:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573773060] [2023-11-29 01:56:29,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:29,423 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 01:56:29,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:56:29,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:29,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:29,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 01:56:29,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:29,804 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 01:56:29,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:56:30,581 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 01:56:30,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:56:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573773060] [2023-11-29 01:56:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573773060] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:56:30,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:56:30,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 01:56:30,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309068032] [2023-11-29 01:56:30,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:56:30,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:56:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:56:30,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:56:30,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:56:30,586 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 01:56:30,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:30,697 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-29 01:56:30,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:56:30,697 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 01:56:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:30,698 INFO L225 Difference]: With dead ends: 14 [2023-11-29 01:56:30,698 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 01:56:30,699 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 01:56:30,700 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 01:56:30,701 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 01:56:30,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 01:56:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-29 01:56:30,705 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 01:56:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-29 01:56:30,705 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-29 01:56:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:30,706 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-29 01:56:30,706 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 01:56:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-29 01:56:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 01:56:30,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:30,707 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-29 01:56:30,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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)] Forceful destruction successful, exit code 0 [2023-11-29 01:56:30,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:30,908 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:56:30,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:30,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-29 01:56:30,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:56:30,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55351348] [2023-11-29 01:56:30,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:56:30,910 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 01:56:30,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:56:30,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:30,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:31,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:56:31,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:56:31,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 01:56:31,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:31,369 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 01:56:31,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:56:32,696 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 01:56:32,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:56:32,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55351348] [2023-11-29 01:56:32,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55351348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:56:32,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:56:32,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 01:56:32,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57646690] [2023-11-29 01:56:32,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:56:32,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:56:32,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:56:32,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:56:32,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:56:32,700 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 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 01:56:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:32,903 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-29 01:56:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:56:32,904 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 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 01:56:32,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:32,905 INFO L225 Difference]: With dead ends: 12 [2023-11-29 01:56:32,905 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 01:56:32,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:56:32,907 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:32,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 01:56:32,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 01:56:32,909 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 01:56:32,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 01:56:32,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-29 01:56:32,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:32,910 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 01:56:32,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 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 01:56:32,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 01:56:32,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 01:56:32,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:56:32,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:33,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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 01:56:33,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 01:56:33,182 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 01:56:33,182 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 163) the Hoare annotation is: (let ((.cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_17~0#1|)) (.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~state_11~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_10~0#1| (_ bv0 8))) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~var_29~0#1|)) (.cse5 (exists ((|ULTIMATE.start_main_~var_58_arg_2~0#1| (_ BitVec 8))) (let ((.cse6 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_58_arg_2~0#1|)))))) (and (= .cse6 |ULTIMATE.start_main_~state_21~0#1|) (= .cse6 |ULTIMATE.start_main_~state_15~0#1|)))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_11~0#1|) .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse4 .cse5))) [2023-11-29 01:56:33,182 INFO L899 garLoopResultBuilder]: For program point L58-3(lines 58 163) no Hoare annotation was computed. [2023-11-29 01:56:33,183 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-29 01:56:33,183 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-29 01:56:33,183 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-29 01:56:33,183 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 01:56:33,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-29 01:56:33,186 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-29 01:56:33,189 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:56:33,201 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-29 01:56:33,203 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated [2023-11-29 01:56:33,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:56:33 BoogieIcfgContainer [2023-11-29 01:56:33,204 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:56:33,204 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:56:33,204 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:56:33,205 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:56:33,205 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:28" (3/4) ... [2023-11-29 01:56:33,207 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:56:33,216 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-29 01:56:33,217 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 01:56:33,217 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 01:56:33,218 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:56:33,218 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:56:33,336 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:56:33,337 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:56:33,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:56:33,338 INFO L158 Benchmark]: Toolchain (without parser) took 5545.85ms. Allocated memory was 73.4MB in the beginning and 180.4MB in the end (delta: 107.0MB). Free memory was 45.2MB in the beginning and 156.1MB in the end (delta: -110.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2023-11-29 01:56:33,338 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:56:33,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.56ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 45.0MB in the beginning and 80.2MB in the end (delta: -35.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 01:56:33,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.92ms. Allocated memory is still 102.8MB. Free memory was 80.2MB in the beginning and 77.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:56:33,341 INFO L158 Benchmark]: Boogie Preprocessor took 56.98ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 75.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:56:33,342 INFO L158 Benchmark]: RCFGBuilder took 424.77ms. Allocated memory is still 102.8MB. Free memory was 75.0MB in the beginning and 55.8MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:56:33,342 INFO L158 Benchmark]: TraceAbstraction took 4566.63ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 54.8MB in the beginning and 103.9MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:56:33,342 INFO L158 Benchmark]: Witness Printer took 133.04ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 103.9MB in the beginning and 156.1MB in the end (delta: -52.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-29 01:56:33,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.56ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 45.0MB in the beginning and 80.2MB in the end (delta: -35.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.92ms. Allocated memory is still 102.8MB. Free memory was 80.2MB in the beginning and 77.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.98ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 75.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.77ms. Allocated memory is still 102.8MB. Free memory was 75.0MB in the beginning and 55.8MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4566.63ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 54.8MB in the beginning and 103.9MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 133.04ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 103.9MB in the beginning and 156.1MB in the end (delta: -52.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_58_arg_2~0#1 : bv8 :: ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_21~0 && ~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_58_arg_2~0#1)[7:0])[7:0] == ~state_15~0) 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: 4.5s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 5 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s 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, 78 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 12 QuantifiedInterpolants, 2798 SizeOfPredicates, 101 NumberOfNonLiveVariables, 468 ConjunctsInSsa, 98 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: 58]: Loop Invariant Derived loop invariant: (((((((1 == mask_SORT_1) && (1 == state_11)) && (var_10 == 0)) && (0 == state_17)) && (1 == var_29)) || (((((1 == mask_SORT_1) && (var_10 == 0)) && (0 == state_17)) && (0 == state_11)) && (1 == var_29))) || ((((1 == mask_SORT_1) && (1 == state_11)) && (var_10 == 0)) && (1 == var_29))) RESULT: Ultimate proved your program to be correct! [2023-11-29 01:56:33,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8bb4d3c-6c38-4d77-aa54-7f1e4a8001c0/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