./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.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_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/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_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/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_13dc7b9d-9e12-42ab-b178-23b07301034d/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 a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:48:22,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:48:22,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:48:22,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:48:22,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:48:22,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:48:22,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:48:22,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:48:22,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:48:22,930 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:48:22,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:48:22,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:48:22,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:48:22,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:48:22,932 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:48:22,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:48:22,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:48:22,934 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:48:22,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:48:22,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:48:22,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:48:22,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:48:22,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:48:22,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:48:22,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:48:22,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:48:22,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:48:22,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:48:22,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:48:22,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:48:22,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:48:22,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:48:22,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:48:22,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:48:22,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:48:22,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:48:22,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:48:22,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:48:22,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:48:22,945 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:48:22,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:48:22,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:48:22,946 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_13dc7b9d-9e12-42ab-b178-23b07301034d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce [2023-11-29 01:48:23,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:48:23,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:48:23,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:48:23,201 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:48:23,201 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:48:23,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-29 01:48:25,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:48:26,112 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:48:26,112 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-29 01:48:26,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data/fc5509049/e5b829107a31471f9f37c136010a159f/FLAG9785a7027 [2023-11-29 01:48:26,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data/fc5509049/e5b829107a31471f9f37c136010a159f [2023-11-29 01:48:26,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:48:26,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:48:26,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:48:26,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:48:26,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:48:26,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701e7751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26, skipping insertion in model container [2023-11-29 01:48:26,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,167 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:48:26,285 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_13dc7b9d-9e12-42ab-b178-23b07301034d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-29 01:48:26,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:48:26,336 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:48:26,348 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_13dc7b9d-9e12-42ab-b178-23b07301034d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-29 01:48:26,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:48:26,387 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:48:26,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26 WrapperNode [2023-11-29 01:48:26,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:48:26,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:48:26,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:48:26,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:48:26,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,442 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-29 01:48:26,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:48:26,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:48:26,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:48:26,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:48:26,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,476 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 01:48:26,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,492 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:48:26,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:48:26,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:48:26,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:48:26,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (1/1) ... [2023-11-29 01:48:26,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:48:26,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:48:26,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:48:26,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:48:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:48:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:48:26,559 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:48:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:48:26,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:48:26,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:48:26,632 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:48:26,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:48:26,907 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:48:26,940 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:48:26,940 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:48:26,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:48:26 BoogieIcfgContainer [2023-11-29 01:48:26,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:48:26,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:48:26,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:48:26,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:48:26,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:48:26" (1/3) ... [2023-11-29 01:48:26,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a60c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:48:26, skipping insertion in model container [2023-11-29 01:48:26,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:26" (2/3) ... [2023-11-29 01:48:26,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a60c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:48:26, skipping insertion in model container [2023-11-29 01:48:26,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:48:26" (3/3) ... [2023-11-29 01:48:26,950 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-82.i [2023-11-29 01:48:26,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:48:26,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:48:27,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:48:27,011 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;@142696c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:48:27,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:48:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 34 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:48:27,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 01:48:27,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:27,027 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:27,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:48:27,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 63447685, now seen corresponding path program 1 times [2023-11-29 01:48:27,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:27,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968131938] [2023-11-29 01:48:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:27,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:48:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:48:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:48:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:48:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:48:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:48:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 01:48:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 01:48:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 01:48:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 01:48:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 01:48:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:48:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 01:48:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 01:48:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 01:48:27,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:27,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968131938] [2023-11-29 01:48:27,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968131938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:48:27,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:48:27,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:48:27,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034122370] [2023-11-29 01:48:27,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:48:27,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:48:27,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:27,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:48:27,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:48:27,424 INFO L87 Difference]: Start difference. First operand has 50 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 34 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:48:27,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:27,459 INFO L93 Difference]: Finished difference Result 97 states and 166 transitions. [2023-11-29 01:48:27,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:48:27,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 91 [2023-11-29 01:48:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:27,469 INFO L225 Difference]: With dead ends: 97 [2023-11-29 01:48:27,469 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 01:48:27,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 01:48:27,476 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:27,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:48:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 01:48:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-29 01:48:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:48:27,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 72 transitions. [2023-11-29 01:48:27,523 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 72 transitions. Word has length 91 [2023-11-29 01:48:27,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:27,523 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 72 transitions. [2023-11-29 01:48:27,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:48:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2023-11-29 01:48:27,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 01:48:27,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:27,528 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:27,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:48:27,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:48:27,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash -956742015, now seen corresponding path program 1 times [2023-11-29 01:48:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:27,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548387850] [2023-11-29 01:48:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:48:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:48:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:48:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:48:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:48:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:48:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 01:48:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 01:48:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 01:48:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 01:48:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 01:48:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:48:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 01:48:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 01:48:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 01:48:27,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:27,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548387850] [2023-11-29 01:48:27,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548387850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:48:27,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:48:27,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:48:27,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036648148] [2023-11-29 01:48:27,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:48:27,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:48:27,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:27,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:48:27,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:48:27,848 INFO L87 Difference]: Start difference. First operand 48 states and 72 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 01:48:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:27,909 INFO L93 Difference]: Finished difference Result 110 states and 164 transitions. [2023-11-29 01:48:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:48:27,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2023-11-29 01:48:27,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:27,912 INFO L225 Difference]: With dead ends: 110 [2023-11-29 01:48:27,913 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 01:48:27,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:48:27,915 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 26 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:27,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 184 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:48:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 01:48:27,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2023-11-29 01:48:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:48:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2023-11-29 01:48:27,928 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 91 [2023-11-29 01:48:27,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:27,930 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2023-11-29 01:48:27,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 01:48:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2023-11-29 01:48:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 01:48:27,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:27,932 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:27,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:48:27,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:48:27,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash -776358970, now seen corresponding path program 1 times [2023-11-29 01:48:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321559895] [2023-11-29 01:48:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:27,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:48:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:48:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:48:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:48:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:48:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:48:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 01:48:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 01:48:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 01:48:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 01:48:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 01:48:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:48:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 01:48:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 01:48:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:28,288 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 01:48:28,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:28,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321559895] [2023-11-29 01:48:28,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321559895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:48:28,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:48:28,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:48:28,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319660183] [2023-11-29 01:48:28,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:48:28,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:48:28,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:48:28,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:48:28,291 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 01:48:28,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:28,498 INFO L93 Difference]: Finished difference Result 165 states and 242 transitions. [2023-11-29 01:48:28,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:48:28,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2023-11-29 01:48:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:28,501 INFO L225 Difference]: With dead ends: 165 [2023-11-29 01:48:28,501 INFO L226 Difference]: Without dead ends: 114 [2023-11-29 01:48:28,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:48:28,504 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 63 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:28,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 256 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:48:28,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-29 01:48:28,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 105. [2023-11-29 01:48:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 01:48:28,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2023-11-29 01:48:28,525 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 154 transitions. Word has length 93 [2023-11-29 01:48:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:28,525 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 154 transitions. [2023-11-29 01:48:28,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 01:48:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 154 transitions. [2023-11-29 01:48:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 01:48:28,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:28,528 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:28,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:48:28,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:48:28,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:28,529 INFO L85 PathProgramCache]: Analyzing trace with hash -75294392, now seen corresponding path program 1 times [2023-11-29 01:48:28,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:28,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728467342] [2023-11-29 01:48:28,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:28,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:48:28,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:48:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:48:28,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:48:28,693 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:48:28,694 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:48:28,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:48:28,699 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 01:48:28,703 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:48:28,751 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 01:48:28,753 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-29 01:48:28,753 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-29 01:48:28,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 01:48:28,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-29 01:48:28,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 01:48:28,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:48:28 BoogieIcfgContainer [2023-11-29 01:48:28,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:48:28,770 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:48:28,770 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:48:28,770 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:48:28,771 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:48:26" (3/4) ... [2023-11-29 01:48:28,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:48:28,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:48:28,775 INFO L158 Benchmark]: Toolchain (without parser) took 2642.13ms. Allocated memory was 165.7MB in the beginning and 224.4MB in the end (delta: 58.7MB). Free memory was 127.2MB in the beginning and 149.2MB in the end (delta: -22.0MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-29 01:48:28,775 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:48:28,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.02ms. Allocated memory is still 165.7MB. Free memory was 127.2MB in the beginning and 114.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 01:48:28,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.02ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 110.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:48:28,776 INFO L158 Benchmark]: Boogie Preprocessor took 55.70ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 105.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:48:28,777 INFO L158 Benchmark]: RCFGBuilder took 441.16ms. Allocated memory is still 165.7MB. Free memory was 105.6MB in the beginning and 83.8MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 01:48:28,777 INFO L158 Benchmark]: TraceAbstraction took 1825.68ms. Allocated memory was 165.7MB in the beginning and 224.4MB in the end (delta: 58.7MB). Free memory was 83.2MB in the beginning and 149.2MB in the end (delta: -66.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:48:28,778 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 224.4MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:48:28,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.02ms. Allocated memory is still 165.7MB. Free memory was 127.2MB in the beginning and 114.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.02ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 110.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.70ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 105.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 441.16ms. Allocated memory is still 165.7MB. Free memory was 105.6MB in the beginning and 83.8MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1825.68ms. Allocated memory was 165.7MB in the beginning and 224.4MB in the end (delta: 58.7MB). Free memory was 83.2MB in the beginning and 149.2MB in the end (delta: -66.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 224.4MB. Free memory is still 149.2MB. 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~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 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 someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 99. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 128.75; [L23] unsigned char var_1_2 = 1; [L24] float var_1_3 = 63.5; [L25] float var_1_4 = 255.5; [L26] unsigned char var_1_5 = 32; [L27] unsigned char var_1_9 = 25; [L28] unsigned char var_1_10 = 128; [L29] unsigned char var_1_11 = 16; [L30] unsigned char var_1_12 = 2; [L31] unsigned char var_1_14 = 5; [L32] unsigned char var_1_15 = 10; [L33] double var_1_16 = 3.75; [L34] unsigned char var_1_17 = 0; [L35] double var_1_18 = 255.5; [L36] unsigned char last_1_var_1_5 = 32; [L37] unsigned char last_1_var_1_12 = 2; [L38] unsigned char last_1_var_1_17 = 0; [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L94] last_1_var_1_5 = var_1_5 [L95] last_1_var_1_12 = var_1_12 [L96] last_1_var_1_17 = var_1_17 [L106] RET updateLastVariables() [L107] CALL updateVariables() [L70] var_1_2 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L71] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L72] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L72] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L73] var_1_3 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_4=511/2, var_1_5=32, var_1_9=25] [L74] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_4=511/2, var_1_5=32, var_1_9=25] [L75] var_1_4 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=25] [L76] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=25] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32] [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32] [L79] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L79] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L80] var_1_10 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_10 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L81] RET assume_abort_if_not(var_1_10 >= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L82] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L82] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L83] var_1_11 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L84] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L85] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L85] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L86] var_1_14 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L87] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L88] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L88] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L89] var_1_15 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L90] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L91] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L91] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L107] RET updateVariables() [L108] CALL step() [L42] EXPR last_1_var_1_17 | last_1_var_1_12 VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=32, var_1_9=254] [L42] signed long int stepLocal_0 = last_1_var_1_17 | last_1_var_1_12; [L43] COND FALSE !((last_1_var_1_5 / -2) >= stepLocal_0) [L46] var_1_5 = (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=126, var_1_9=254] [L48] COND FALSE !(! var_1_2) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=127, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_5=126, var_1_9=254] [L53] var_1_16 = var_1_4 [L54] var_1_17 = var_1_9 [L55] var_1_18 = var_1_3 [L56] unsigned char stepLocal_1 = var_1_9; VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, stepLocal_1=254, var_1_10=253, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=127, var_1_16=33027, var_1_17=254, var_1_18=33026, var_1_1=515/4, var_1_2=1, var_1_3=33026, var_1_4=33027, var_1_5=126, var_1_9=254] [L57] COND FALSE !((var_1_5 + var_1_11) >= stepLocal_1) [L66] var_1_12 = var_1_9 VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, stepLocal_1=254, var_1_10=253, var_1_11=127, var_1_12=254, var_1_14=126, var_1_15=127, var_1_16=33027, var_1_17=254, var_1_18=33026, var_1_1=515/4, var_1_2=1, var_1_3=33026, var_1_4=33027, var_1_5=126, var_1_9=254] [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR ((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))))) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=254, var_1_14=126, var_1_15=127, var_1_16=33027, var_1_17=254, var_1_18=33026, var_1_1=515/4, var_1_2=1, var_1_3=33026, var_1_4=33027, var_1_5=126, var_1_9=254] [L99] EXPR last_1_var_1_17 | last_1_var_1_12 VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=254, var_1_14=126, var_1_15=127, var_1_16=33027, var_1_17=254, var_1_18=33026, var_1_1=515/4, var_1_2=1, var_1_3=33026, var_1_4=33027, var_1_5=126, var_1_9=254] [L99] EXPR ((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))))) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=254, var_1_14=126, var_1_15=127, var_1_16=33027, var_1_17=254, var_1_18=33026, var_1_1=515/4, var_1_2=1, var_1_3=33026, var_1_4=33027, var_1_5=126, var_1_9=254] [L99-L100] return ((((((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))))) && (((var_1_5 + var_1_11) >= var_1_9) ? ((((((var_1_4) > ((var_1_1 * var_1_3))) ? (var_1_4) : ((var_1_1 * var_1_3)))) <= var_1_1) ? (var_1_12 == ((unsigned char) ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))))) : (var_1_2 ? (var_1_12 == ((unsigned char) (var_1_11 + var_1_15))) : 1)) : (var_1_12 == ((unsigned char) var_1_9)))) && (var_1_16 == ((double) var_1_4))) && (var_1_17 == ((unsigned char) var_1_9))) && (var_1_18 == ((double) var_1_3)) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=254, var_1_14=126, var_1_15=127, var_1_16=33027, var_1_17=254, var_1_18=33026, var_1_1=515/4, var_1_2=1, var_1_3=33026, var_1_4=33027, var_1_5=126, var_1_9=254] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=253, var_1_11=127, var_1_12=254, var_1_14=126, var_1_15=127, var_1_16=33027, var_1_17=254, var_1_18=33026, var_1_1=515/4, var_1_2=1, var_1_3=33026, var_1_4=33027, var_1_5=126, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 509 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 201 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1092/1092 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 01:48:28,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/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_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/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_13dc7b9d-9e12-42ab-b178-23b07301034d/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 a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:48:30,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:48:30,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 01:48:30,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:48:30,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:48:30,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:48:30,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:48:30,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:48:30,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:48:30,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:48:30,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:48:30,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:48:30,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:48:30,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:48:30,783 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:48:30,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:48:30,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:48:30,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:48:30,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:48:30,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:48:30,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:48:30,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:48:30,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:48:30,787 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:48:30,788 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:48:30,788 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:48:30,788 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:48:30,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:48:30,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:48:30,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:48:30,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:48:30,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:48:30,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:48:30,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:48:30,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:48:30,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:48:30,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:48:30,792 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:48:30,792 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:48:30,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:48:30,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:48:30,793 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:48:30,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:48:30,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:48:30,793 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:48:30,794 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_13dc7b9d-9e12-42ab-b178-23b07301034d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce [2023-11-29 01:48:31,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:48:31,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:48:31,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:48:31,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:48:31,117 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:48:31,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-29 01:48:33,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:48:34,061 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:48:34,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-29 01:48:34,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data/3179550cd/85d855182be442e7b32f745fda8f89e5/FLAGb3e3d841d [2023-11-29 01:48:34,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/data/3179550cd/85d855182be442e7b32f745fda8f89e5 [2023-11-29 01:48:34,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:48:34,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:48:34,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:48:34,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:48:34,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:48:34,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28876911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34, skipping insertion in model container [2023-11-29 01:48:34,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,126 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:48:34,276 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_13dc7b9d-9e12-42ab-b178-23b07301034d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-29 01:48:34,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:48:34,330 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:48:34,343 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_13dc7b9d-9e12-42ab-b178-23b07301034d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-29 01:48:34,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:48:34,382 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:48:34,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34 WrapperNode [2023-11-29 01:48:34,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:48:34,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:48:34,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:48:34,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:48:34,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,430 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2023-11-29 01:48:34,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:48:34,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:48:34,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:48:34,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:48:34,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,461 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 01:48:34,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:48:34,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:48:34,484 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:48:34,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:48:34,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (1/1) ... [2023-11-29 01:48:34,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:48:34,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:48:34,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:48:34,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:48:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:48:34,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:48:34,587 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:48:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:48:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:48:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:48:34,675 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:48:34,677 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:48:44,136 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:48:44,183 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:48:44,183 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:48:44,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:48:44 BoogieIcfgContainer [2023-11-29 01:48:44,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:48:44,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:48:44,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:48:44,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:48:44,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:48:34" (1/3) ... [2023-11-29 01:48:44,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517679b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:48:44, skipping insertion in model container [2023-11-29 01:48:44,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:48:34" (2/3) ... [2023-11-29 01:48:44,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517679b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:48:44, skipping insertion in model container [2023-11-29 01:48:44,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:48:44" (3/3) ... [2023-11-29 01:48:44,191 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-82.i [2023-11-29 01:48:44,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:48:44,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:48:44,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:48:44,247 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;@3f5691be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:48:44,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:48:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:48:44,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 01:48:44,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:44,260 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:44,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:48:44,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:44,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1824637310, now seen corresponding path program 1 times [2023-11-29 01:48:44,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:48:44,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140131570] [2023-11-29 01:48:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:44,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:48:44,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:48:44,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:48:44,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 01:48:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:44,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:48:44,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:48:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-11-29 01:48:44,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:48:44,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:48:44,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140131570] [2023-11-29 01:48:44,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140131570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:48:44,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:48:44,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:48:44,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316075391] [2023-11-29 01:48:44,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:48:44,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:48:44,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:48:44,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:48:44,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:48:44,549 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:48:48,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:48,707 INFO L93 Difference]: Finished difference Result 81 states and 140 transitions. [2023-11-29 01:48:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:48:48,736 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), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2023-11-29 01:48:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:48,742 INFO L225 Difference]: With dead ends: 81 [2023-11-29 01:48:48,742 INFO L226 Difference]: Without dead ends: 40 [2023-11-29 01:48:48,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 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 01:48:48,747 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:48,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 01:48:48,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-29 01:48:48,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-29 01:48:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:48:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2023-11-29 01:48:48,777 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 59 transitions. Word has length 87 [2023-11-29 01:48:48,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:48,778 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 59 transitions. [2023-11-29 01:48:48,778 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), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 01:48:48,778 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 59 transitions. [2023-11-29 01:48:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 01:48:48,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:48,781 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:48,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:48:48,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:48:48,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:48:48,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash -717470854, now seen corresponding path program 1 times [2023-11-29 01:48:48,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:48:48,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844133805] [2023-11-29 01:48:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:48,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:48:48,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:48:48,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:48:48,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 01:48:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:49,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:48:49,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:48:49,618 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 01:48:49,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:48:49,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:48:49,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844133805] [2023-11-29 01:48:49,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844133805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:48:49,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:48:49,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:48:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600144723] [2023-11-29 01:48:49,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:48:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:48:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:48:49,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:48:49,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:48:49,622 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 01:48:54,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:57,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:01,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:01,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:49:01,344 INFO L93 Difference]: Finished difference Result 119 states and 176 transitions. [2023-11-29 01:49:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:49:01,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-11-29 01:49:01,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:49:01,371 INFO L225 Difference]: With dead ends: 119 [2023-11-29 01:49:01,371 INFO L226 Difference]: Without dead ends: 80 [2023-11-29 01:49:01,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:49:01,374 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 41 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:49:01,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 175 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2023-11-29 01:49:01,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-29 01:49:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 68. [2023-11-29 01:49:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 01:49:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2023-11-29 01:49:01,398 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 87 [2023-11-29 01:49:01,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:49:01,399 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2023-11-29 01:49:01,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 01:49:01,399 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-29 01:49:01,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 01:49:01,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:49:01,402 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:49:01,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/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 01:49:01,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:49:01,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:49:01,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:49:01,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1057536508, now seen corresponding path program 1 times [2023-11-29 01:49:01,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:49:01,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845073401] [2023-11-29 01:49:01,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:49:01,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:49:01,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:49:01,605 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:49:01,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc7b9d-9e12-42ab-b178-23b07301034d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 01:49:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:01,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:49:01,787 INFO L285 TraceCheckSpWp]: Computing forward predicates...