./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdb04820b0552f240cac64f9b4eeb39d6636c8d16d50737ca938c89bab3fc009 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:19:55,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:19:55,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:19:55,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:19:55,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:19:55,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:19:55,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:19:55,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:19:55,361 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:19:55,362 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:19:55,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:19:55,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:19:55,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:19:55,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:19:55,365 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:19:55,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:19:55,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:19:55,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:19:55,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:19:55,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:19:55,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:19:55,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:19:55,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:19:55,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:19:55,374 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:19:55,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:19:55,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:19:55,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:19:55,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:19:55,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:19:55,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:19:55,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:19:55,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:19:55,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:19:55,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:19:55,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:19:55,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:19:55,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:19:55,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:19:55,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:19:55,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:19:55,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:19:55,380 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_092f1059-483c-4d8f-a590-c62cbeb86469/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb04820b0552f240cac64f9b4eeb39d6636c8d16d50737ca938c89bab3fc009 [2023-11-29 04:19:55,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:19:55,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:19:55,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:19:55,669 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:19:55,670 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:19:55,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i [2023-11-29 04:19:58,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:19:58,759 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:19:58,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i [2023-11-29 04:19:58,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data/a93250502/cca75e37a7ee4164a61727427702ce25/FLAG1bb879335 [2023-11-29 04:19:59,123 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data/a93250502/cca75e37a7ee4164a61727427702ce25 [2023-11-29 04:19:59,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:19:59,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:19:59,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:19:59,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:19:59,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:19:59,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f002339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59, skipping insertion in model container [2023-11-29 04:19:59,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,161 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:19:59,295 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_092f1059-483c-4d8f-a590-c62cbeb86469/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i[913,926] [2023-11-29 04:19:59,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:19:59,367 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:19:59,384 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_092f1059-483c-4d8f-a590-c62cbeb86469/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i[913,926] [2023-11-29 04:19:59,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:19:59,435 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:19:59,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59 WrapperNode [2023-11-29 04:19:59,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:19:59,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:19:59,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:19:59,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:19:59,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,506 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-11-29 04:19:59,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:19:59,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:19:59,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:19:59,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:19:59,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,546 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:19:59,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:19:59,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:19:59,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:19:59,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:19:59,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (1/1) ... [2023-11-29 04:19:59,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:19:59,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:19:59,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:19:59,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:19:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:19:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:19:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:19:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:19:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:19:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:19:59,758 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:19:59,761 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:20:00,114 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:20:00,155 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:20:00,156 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:20:00,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:00 BoogieIcfgContainer [2023-11-29 04:20:00,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:20:00,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:20:00,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:20:00,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:20:00,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:19:59" (1/3) ... [2023-11-29 04:20:00,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483a328b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:00, skipping insertion in model container [2023-11-29 04:20:00,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:19:59" (2/3) ... [2023-11-29 04:20:00,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483a328b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:00, skipping insertion in model container [2023-11-29 04:20:00,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:00" (3/3) ... [2023-11-29 04:20:00,167 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-68.i [2023-11-29 04:20:00,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:20:00,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:20:00,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:20:00,241 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;@343449d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:20:00,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:20:00,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 35 states have (on average 1.6) internal successors, (56), 36 states have internal predecessors, (56), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:20:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 04:20:00,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:00,258 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:00,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:20:00,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:00,264 INFO L85 PathProgramCache]: Analyzing trace with hash -349145383, now seen corresponding path program 1 times [2023-11-29 04:20:00,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:00,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399586406] [2023-11-29 04:20:00,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:00,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:00,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399586406] [2023-11-29 04:20:00,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 04:20:00,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067413235] [2023-11-29 04:20:00,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:00,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:00,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:00,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:00,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:20:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:00,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:20:00,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:20:00,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:00,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067413235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:00,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:00,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:20:00,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124843147] [2023-11-29 04:20:00,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:00,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:20:00,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:00,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:20:00,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:20:00,832 INFO L87 Difference]: Start difference. First operand has 54 states, 35 states have (on average 1.6) internal successors, (56), 36 states have internal predecessors, (56), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:20:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:00,884 INFO L93 Difference]: Finished difference Result 105 states and 190 transitions. [2023-11-29 04:20:00,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:20:00,888 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2023-11-29 04:20:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:00,899 INFO L225 Difference]: With dead ends: 105 [2023-11-29 04:20:00,899 INFO L226 Difference]: Without dead ends: 52 [2023-11-29 04:20:00,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:20:00,908 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:00,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:20:00,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-29 04:20:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-29 04:20:00,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 34 states have internal predecessors, (50), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:20:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 82 transitions. [2023-11-29 04:20:00,964 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 82 transitions. Word has length 102 [2023-11-29 04:20:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:00,967 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 82 transitions. [2023-11-29 04:20:00,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:20:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 82 transitions. [2023-11-29 04:20:00,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:20:00,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:00,973 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:00,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:20:01,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 04:20:01,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:20:01,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1275987121, now seen corresponding path program 1 times [2023-11-29 04:20:01,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:01,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796891568] [2023-11-29 04:20:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:01,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:01,230 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:01,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156324425] [2023-11-29 04:20:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:01,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:01,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:01,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:01,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:20:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:01,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:20:01,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:20:01,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:01,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796891568] [2023-11-29 04:20:01,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156324425] [2023-11-29 04:20:01,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156324425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:01,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:01,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:20:01,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128894087] [2023-11-29 04:20:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:01,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:20:01,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:01,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:20:01,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:20:01,536 INFO L87 Difference]: Start difference. First operand 52 states and 82 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:20:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:01,732 INFO L93 Difference]: Finished difference Result 156 states and 239 transitions. [2023-11-29 04:20:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:20:01,732 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), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2023-11-29 04:20:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:01,736 INFO L225 Difference]: With dead ends: 156 [2023-11-29 04:20:01,736 INFO L226 Difference]: Without dead ends: 105 [2023-11-29 04:20:01,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 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 04:20:01,739 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 113 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:01,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 154 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:01,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-29 04:20:01,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 57. [2023-11-29 04:20:01,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:20:01,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 86 transitions. [2023-11-29 04:20:01,760 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 86 transitions. Word has length 103 [2023-11-29 04:20:01,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:01,761 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 86 transitions. [2023-11-29 04:20:01,761 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), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:20:01,761 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 86 transitions. [2023-11-29 04:20:01,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:20:01,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:01,764 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:01,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:20:01,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:01,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:20:01,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:01,970 INFO L85 PathProgramCache]: Analyzing trace with hash 466640495, now seen corresponding path program 1 times [2023-11-29 04:20:01,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:01,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709528919] [2023-11-29 04:20:01,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:01,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:02,007 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:02,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164886837] [2023-11-29 04:20:02,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:02,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:02,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:02,010 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:02,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:20:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:02,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:20:02,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 253 proven. 24 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-29 04:20:02,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 04:20:02,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:02,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709528919] [2023-11-29 04:20:02,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:02,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164886837] [2023-11-29 04:20:02,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164886837] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:20:02,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:20:02,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 04:20:02,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049314442] [2023-11-29 04:20:02,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:02,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:20:02,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:02,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:20:02,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:20:02,437 INFO L87 Difference]: Start difference. First operand 57 states and 86 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 04:20:02,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:02,640 INFO L93 Difference]: Finished difference Result 120 states and 176 transitions. [2023-11-29 04:20:02,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:20:02,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 103 [2023-11-29 04:20:02,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:02,643 INFO L225 Difference]: With dead ends: 120 [2023-11-29 04:20:02,643 INFO L226 Difference]: Without dead ends: 64 [2023-11-29 04:20:02,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:20:02,646 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 47 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:02,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 126 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:02,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-29 04:20:02,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2023-11-29 04:20:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:20:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 86 transitions. [2023-11-29 04:20:02,661 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 86 transitions. Word has length 103 [2023-11-29 04:20:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:02,662 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 86 transitions. [2023-11-29 04:20:02,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 04:20:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 86 transitions. [2023-11-29 04:20:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 04:20:02,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:02,666 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:02,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:20:02,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:02,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:20:02,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:02,870 INFO L85 PathProgramCache]: Analyzing trace with hash -520066930, now seen corresponding path program 1 times [2023-11-29 04:20:02,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:02,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363836358] [2023-11-29 04:20:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:02,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:02,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:02,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379576795] [2023-11-29 04:20:02,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:02,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:02,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:02,905 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:02,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:20:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:20:03,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:20:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:20:03,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:20:03,105 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:20:03,106 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:20:03,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:20:03,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:03,322 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 04:20:03,325 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:20:03,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 04:20:03,395 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 04:20:03,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:20:03 BoogieIcfgContainer [2023-11-29 04:20:03,415 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:20:03,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:20:03,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:20:03,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:20:03,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:00" (3/4) ... [2023-11-29 04:20:03,419 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:20:03,420 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:20:03,420 INFO L158 Benchmark]: Toolchain (without parser) took 4294.25ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 104.3MB in the beginning and 85.7MB in the end (delta: 18.6MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2023-11-29 04:20:03,420 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:20:03,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.76ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 90.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:20:03,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.56ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 87.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:20:03,421 INFO L158 Benchmark]: Boogie Preprocessor took 69.89ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 81.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 04:20:03,422 INFO L158 Benchmark]: RCFGBuilder took 577.97ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 57.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 04:20:03,422 INFO L158 Benchmark]: TraceAbstraction took 3255.90ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 57.1MB in the beginning and 86.7MB in the end (delta: -29.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-11-29 04:20:03,423 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 180.4MB. Free memory was 86.7MB in the beginning and 85.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:20:03,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.76ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 90.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.56ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 87.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.89ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 81.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 577.97ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 57.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3255.90ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 57.1MB in the beginning and 86.7MB in the end (delta: -29.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 180.4MB. Free memory was 86.7MB in the beginning and 85.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 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: 19]: 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 someBinaryDOUBLEComparisonOperation at line 111, overapproximation of someBinaryFLOATComparisonOperation at line 111. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_2 = 10; [L24] unsigned char var_1_3 = 25; [L25] unsigned char var_1_4 = 16; [L26] unsigned char var_1_5 = 0; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 1; [L29] unsigned char var_1_8 = 32; [L30] double var_1_9 = 4.6; [L31] double var_1_10 = 9.25; [L32] double var_1_11 = 1.25; [L33] unsigned char var_1_12 = 100; [L34] unsigned char var_1_13 = 64; [L35] unsigned char var_1_14 = 0; [L36] float var_1_15 = 7.5; [L37] signed long int var_1_16 = 0; [L115] isInitial = 1 [L116] FCALL initially() [L117] COND TRUE 1 [L118] FCALL updateLastVariables() [L119] CALL updateVariables() [L83] var_1_2 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L84] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L85] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L85] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L86] var_1_3 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L87] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L88] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L88] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L89] var_1_4 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L90] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L91] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L91] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L92] var_1_5 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L93] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L94] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L94] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L95] var_1_7 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L96] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L97] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L97] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L98] var_1_8 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L99] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L100] CALL assume_abort_if_not(var_1_8 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L100] RET assume_abort_if_not(var_1_8 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L101] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L101] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L102] var_1_10 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L103] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L104] var_1_13 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L105] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L106] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L106] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L119] RET updateVariables() [L120] CALL step() [L41] EXPR var_1_3 ^ var_1_4 VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L41] COND TRUE var_1_2 <= (var_1_3 ^ var_1_4) [L42] var_1_1 = (! var_1_5) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L46] COND FALSE !(-256 >= var_1_3) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=2, var_1_9=23/5] [L49] COND TRUE (var_1_2 < (var_1_4 / var_1_8)) || ((var_1_5 && var_1_7) && var_1_1) [L50] var_1_6 = var_1_7 VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=23/5] [L53] COND TRUE ((((((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) > (var_1_4)) ? (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) : (var_1_4))) <= (50 * var_1_8) [L54] var_1_9 = var_1_10 VAL [isInitial=1, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] [L56] COND TRUE (var_1_7 && var_1_1) || (! var_1_5) [L57] var_1_11 = var_1_10 VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] [L59] COND TRUE \read(var_1_1) VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=100, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] [L60] COND FALSE !(var_1_10 >= (- var_1_9)) [L67] var_1_12 = var_1_13 VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=3, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] [L72] COND FALSE !((var_1_13 % (5u + 256u)) <= var_1_2) VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=3, var_1_13=3, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] [L79] var_1_15 = var_1_10 [L80] var_1_16 = var_1_3 [L120] RET step() [L121] CALL, EXPR property() [L111] EXPR var_1_3 ^ var_1_4 VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=3, var_1_13=3, var_1_14=0, var_1_15=2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] [L111-L112] return ((((((((var_1_2 <= (var_1_3 ^ var_1_4)) ? (var_1_1 == ((unsigned char) (! var_1_5))) : (var_1_1 == ((unsigned char) (! var_1_5)))) && ((-256 >= var_1_3) ? (var_1_6 == ((unsigned char) (var_1_1 || var_1_7))) : (((var_1_2 < (var_1_4 / var_1_8)) || ((var_1_5 && var_1_7) && var_1_1)) ? (var_1_6 == ((unsigned char) var_1_7)) : 1))) && ((((((((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) > (var_1_4)) ? (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) : (var_1_4))) <= (50 * var_1_8)) ? (var_1_9 == ((double) var_1_10)) : 1)) && (((var_1_7 && var_1_1) || (! var_1_5)) ? (var_1_11 == ((double) var_1_10)) : 1)) && (var_1_1 ? ((var_1_10 >= (- var_1_9)) ? ((var_1_8 != var_1_3) ? (var_1_12 == ((unsigned char) var_1_13)) : (var_1_12 == ((unsigned char) 50))) : (var_1_12 == ((unsigned char) var_1_13))) : (var_1_12 == ((unsigned char) var_1_13)))) && (((var_1_13 % (5u + 256u)) <= var_1_2) ? (((var_1_13 + 16) >= var_1_2) ? (var_1_14 == ((unsigned char) var_1_7)) : (var_1_14 == ((unsigned char) var_1_7))) : 1)) && (var_1_15 == ((float) var_1_10))) && (var_1_16 == ((signed long int) var_1_3)) ; [L121] RET, EXPR property() [L121] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=2, var_1_12=3, var_1_13=3, var_1_14=0, var_1_15=2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=2, var_1_12=3, var_1_13=3, var_1_14=0, var_1_15=2, var_1_16=0, var_1_1=1, var_1_2=2, var_1_3=0, var_1_4=6, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 160 mSDsluCounter, 358 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 217 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 400 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 52 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 514 NumberOfCodeBlocks, 514 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 407 ConstructedInterpolants, 0 QuantifiedInterpolants, 803 SizeOfPredicates, 4 NumberOfNonLiveVariables, 749 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1872/1920 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 04:20:03,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdb04820b0552f240cac64f9b4eeb39d6636c8d16d50737ca938c89bab3fc009 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:20:05,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:20:05,715 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 04:20:05,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:20:05,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:20:05,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:20:05,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:20:05,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:20:05,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:20:05,755 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:20:05,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:20:05,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:20:05,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:20:05,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:20:05,758 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:20:05,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:20:05,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:20:05,760 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:20:05,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:20:05,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:20:05,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:20:05,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:20:05,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:20:05,764 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:20:05,764 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:20:05,765 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:20:05,765 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:20:05,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:20:05,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:20:05,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:20:05,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:20:05,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:20:05,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:20:05,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:20:05,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:20:05,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:20:05,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:20:05,769 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:20:05,769 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:20:05,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:20:05,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:20:05,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:20:05,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:20:05,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:20:05,771 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:20:05,771 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_092f1059-483c-4d8f-a590-c62cbeb86469/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb04820b0552f240cac64f9b4eeb39d6636c8d16d50737ca938c89bab3fc009 [2023-11-29 04:20:06,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:20:06,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:20:06,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:20:06,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:20:06,123 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:20:06,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i [2023-11-29 04:20:09,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:20:09,491 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:20:09,492 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i [2023-11-29 04:20:09,502 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data/468a39174/595aac59c8074215a053ab206c71c3a5/FLAGa3ccaea71 [2023-11-29 04:20:09,517 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/data/468a39174/595aac59c8074215a053ab206c71c3a5 [2023-11-29 04:20:09,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:20:09,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:20:09,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:09,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:20:09,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:20:09,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2f86df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09, skipping insertion in model container [2023-11-29 04:20:09,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,563 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:20:09,713 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_092f1059-483c-4d8f-a590-c62cbeb86469/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i[913,926] [2023-11-29 04:20:09,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:09,788 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:20:09,802 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_092f1059-483c-4d8f-a590-c62cbeb86469/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-68.i[913,926] [2023-11-29 04:20:09,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:09,862 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:20:09,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09 WrapperNode [2023-11-29 04:20:09,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:09,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:20:09,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:20:09,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:20:09,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,927 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-29 04:20:09,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:20:09,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:20:09,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:20:09,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:20:09,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,966 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:20:09,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:09,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:20:09,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:20:09,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:20:09,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:20:10,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (1/1) ... [2023-11-29 04:20:10,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:20:10,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:10,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:20:10,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:20:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:20:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:20:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:20:10,084 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:20:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:20:10,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:20:10,196 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:20:10,199 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:20:10,968 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:20:11,044 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:20:11,044 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:20:11,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:11 BoogieIcfgContainer [2023-11-29 04:20:11,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:20:11,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:20:11,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:20:11,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:20:11,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:20:09" (1/3) ... [2023-11-29 04:20:11,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526d5c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:11, skipping insertion in model container [2023-11-29 04:20:11,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:09" (2/3) ... [2023-11-29 04:20:11,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526d5c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:11, skipping insertion in model container [2023-11-29 04:20:11,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:11" (3/3) ... [2023-11-29 04:20:11,055 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-68.i [2023-11-29 04:20:11,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:20:11,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:20:11,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:20:11,133 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;@167b340, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:20:11,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:20:11,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:20:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 04:20:11,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:11,152 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:11,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:20:11,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:11,159 INFO L85 PathProgramCache]: Analyzing trace with hash -987653615, now seen corresponding path program 1 times [2023-11-29 04:20:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:20:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997843233] [2023-11-29 04:20:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:11,174 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 04:20:11,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:20:11,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:11,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:11,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:20:11,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:20:11,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:11,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:20:11,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997843233] [2023-11-29 04:20:11,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997843233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:11,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:11,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:20:11,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855694422] [2023-11-29 04:20:11,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:11,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:20:11,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:20:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:20:11,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:20:11,506 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:20:11,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:11,769 INFO L93 Difference]: Finished difference Result 91 states and 164 transitions. [2023-11-29 04:20:11,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:20:11,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-11-29 04:20:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:11,800 INFO L225 Difference]: With dead ends: 91 [2023-11-29 04:20:11,800 INFO L226 Difference]: Without dead ends: 45 [2023-11-29 04:20:11,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:20:11,807 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:11,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:20:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-29 04:20:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-29 04:20:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:20:11,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2023-11-29 04:20:11,858 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 69 transitions. Word has length 99 [2023-11-29 04:20:11,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:11,861 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 69 transitions. [2023-11-29 04:20:11,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 04:20:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2023-11-29 04:20:11,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:20:11,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:11,867 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:11,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:12,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:12,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:20:12,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash 939860491, now seen corresponding path program 1 times [2023-11-29 04:20:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:20:12,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085331933] [2023-11-29 04:20:12,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:12,070 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 04:20:12,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:20:12,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:12,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:12,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:20:12,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 253 proven. 24 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-29 04:20:12,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 04:20:12,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:20:12,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085331933] [2023-11-29 04:20:12,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085331933] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:20:12,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:20:12,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 04:20:12,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098992575] [2023-11-29 04:20:12,890 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:12,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:20:12,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:20:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:20:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:20:12,895 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 04:20:13,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:13,763 INFO L93 Difference]: Finished difference Result 97 states and 144 transitions. [2023-11-29 04:20:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:20:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 100 [2023-11-29 04:20:13,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:13,777 INFO L225 Difference]: With dead ends: 97 [2023-11-29 04:20:13,778 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 04:20:13,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:20:13,780 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 151 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:13,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 85 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:20:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 04:20:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2023-11-29 04:20:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:20:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2023-11-29 04:20:13,796 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 100 [2023-11-29 04:20:13,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:13,796 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2023-11-29 04:20:13,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 04:20:13,797 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2023-11-29 04:20:13,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:20:13,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:13,799 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:13,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 04:20:14,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:14,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:20:14,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1345783482, now seen corresponding path program 1 times [2023-11-29 04:20:14,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:20:14,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434028359] [2023-11-29 04:20:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:14,003 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 04:20:14,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:20:14,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:14,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092f1059-483c-4d8f-a590-c62cbeb86469/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 04:20:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:14,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:20:14,233 INFO L285 TraceCheckSpWp]: Computing forward predicates...