./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx --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 bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:03,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:04,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:23:04,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:04,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:04,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:04,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:04,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:04,063 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:04,063 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:04,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:04,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:04,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:04,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:04,067 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:04,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:04,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:04,068 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:04,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:23:04,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:04,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:04,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:04,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:04,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:04,072 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:04,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:04,073 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:04,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:04,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:04,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:04,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:04,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:04,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:04,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:04,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:04,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:23:04,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:23:04,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:04,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:04,077 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:04,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:04,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:04,078 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_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd [2023-11-21 22:23:04,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:04,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:04,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:04,336 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:04,337 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:04,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-21 22:23:07,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:07,685 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:07,685 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-21 22:23:07,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data/d90c3f146/428cd8912d2b4e2db6d2269371ddca0c/FLAG9c31097f9 [2023-11-21 22:23:07,711 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data/d90c3f146/428cd8912d2b4e2db6d2269371ddca0c [2023-11-21 22:23:07,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:07,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:07,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:07,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:07,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:07,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:07" (1/1) ... [2023-11-21 22:23:07,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110380cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:07, skipping insertion in model container [2023-11-21 22:23:07,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:07" (1/1) ... [2023-11-21 22:23:07,753 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:07,924 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_0fdad08e-7684-4aee-97b6-9f4c001424ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-21 22:23:07,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:08,012 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:08,034 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_0fdad08e-7684-4aee-97b6-9f4c001424ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-21 22:23:08,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:08,091 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:08,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08 WrapperNode [2023-11-21 22:23:08,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:08,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:08,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:08,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:08,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,170 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2023-11-21 22:23:08,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:08,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:08,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:08,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:08,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,193 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,217 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:23:08,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:08,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:08,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:08,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:08,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (1/1) ... [2023-11-21 22:23:08,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:08,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:08,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:08,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:23:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:23:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:23:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:08,404 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:08,407 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:08,699 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:08,953 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:08,954 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:23:08,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:08 BoogieIcfgContainer [2023-11-21 22:23:08,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:08,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:08,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:08,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:08,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:07" (1/3) ... [2023-11-21 22:23:08,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1ef6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:08, skipping insertion in model container [2023-11-21 22:23:08,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:08" (2/3) ... [2023-11-21 22:23:08,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1ef6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:08, skipping insertion in model container [2023-11-21 22:23:08,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:08" (3/3) ... [2023-11-21 22:23:08,993 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-21 22:23:09,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:09,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:23:09,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:09,085 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;@589e0a40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:09,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:23:09,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-21 22:23:09,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:23:09,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:09,101 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:09,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:23:09,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:09,108 INFO L85 PathProgramCache]: Analyzing trace with hash -882276653, now seen corresponding path program 1 times [2023-11-21 22:23:09,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:09,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480493048] [2023-11-21 22:23:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:09,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:23:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:23:09,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:23:09,685 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:23:09,686 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:23:09,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:23:09,694 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:23:09,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:23:09,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:23:09 BoogieIcfgContainer [2023-11-21 22:23:09,775 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:23:09,776 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:23:09,776 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:23:09,776 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:23:09,777 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:08" (3/4) ... [2023-11-21 22:23:09,779 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:23:09,780 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:23:09,782 INFO L158 Benchmark]: Toolchain (without parser) took 2065.95ms. Allocated memory was 132.1MB in the beginning and 190.8MB in the end (delta: 58.7MB). Free memory was 87.3MB in the beginning and 131.4MB in the end (delta: -44.1MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-21 22:23:09,782 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:09,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.92ms. Allocated memory is still 132.1MB. Free memory was 87.3MB in the beginning and 75.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:23:09,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.65ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 73.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:09,790 INFO L158 Benchmark]: Boogie Preprocessor took 66.15ms. Allocated memory is still 132.1MB. Free memory was 73.2MB in the beginning and 71.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:09,791 INFO L158 Benchmark]: RCFGBuilder took 716.60ms. Allocated memory is still 132.1MB. Free memory was 70.5MB in the beginning and 101.2MB in the end (delta: -30.7MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2023-11-21 22:23:09,792 INFO L158 Benchmark]: TraceAbstraction took 793.59ms. Allocated memory is still 190.8MB. Free memory was 161.8MB in the beginning and 131.4MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-21 22:23:09,793 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 190.8MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:09,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.92ms. Allocated memory is still 132.1MB. Free memory was 87.3MB in the beginning and 75.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.65ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 73.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.15ms. Allocated memory is still 132.1MB. Free memory was 73.2MB in the beginning and 71.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 716.60ms. Allocated memory is still 132.1MB. Free memory was 70.5MB in the beginning and 101.2MB in the end (delta: -30.7MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 793.59ms. Allocated memory is still 190.8MB. Free memory was 161.8MB in the beginning and 131.4MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 190.8MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 16.1GB. * 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 40, overapproximation of bitwiseOr at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -8; [L23] signed char var_1_10 = -64; [L24] unsigned char var_1_11 = 0; [L25] unsigned char var_1_12 = 0; [L26] unsigned char var_1_13 = 1; [L27] unsigned char var_1_14 = 0; [L28] unsigned char var_1_15 = 0; [L29] signed long int var_1_16 = -16; [L30] float var_1_17 = 3.5; [L31] float var_1_18 = 128.45; [L32] unsigned long int var_1_19 = 50; [L33] unsigned long int var_1_20 = 25; [L84] isInitial = 1 [L85] FCALL initially() [L86] COND TRUE 1 [L87] FCALL updateLastVariables() [L88] CALL updateVariables() [L59] var_1_10 = __VERIFIER_nondet_char() [L60] CALL assume_abort_if_not(var_1_10 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_10 >= -127) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L61] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L62] var_1_12 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L64] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L65] var_1_14 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L67] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=0, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L68] var_1_15 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L70] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2569/20, var_1_19=50, var_1_1=-8, var_1_20=25] [L71] var_1_18 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2147483653, var_1_19=50, var_1_1=-8, var_1_20=25] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2147483653, var_1_19=50, var_1_1=-8, var_1_20=25] [L73] var_1_20 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2147483653, var_1_19=50, var_1_1=-8, var_1_20=2147483648] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2147483653, var_1_19=50, var_1_1=-8, var_1_20=2147483648] [L75] CALL assume_abort_if_not(var_1_20 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2147483653, var_1_19=50, var_1_1=-8, var_1_20=2147483648] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_20 <= 4294967294) VAL [isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-16, var_1_17=7/2, var_1_18=2147483653, var_1_19=50, var_1_1=-8, var_1_20=2147483648] [L88] RET updateVariables() [L89] CALL step() [L37] var_1_13 = (var_1_14 && var_1_15) [L38] var_1_17 = var_1_18 [L39] var_1_19 = var_1_20 [L40] COND FALSE !((- (var_1_17 + var_1_17)) > var_1_17) [L43] var_1_16 = var_1_19 [L44] EXPR var_1_16 | var_1_19 [L44] COND FALSE !(((var_1_16 | var_1_19) > var_1_16) && var_1_11) [L55] var_1_1 = var_1_10 [L89] RET step() [L90] CALL, EXPR property() [L80] EXPR var_1_16 | var_1_19 [L80-L81] return ((((((((var_1_16 | var_1_19) > var_1_16) && var_1_11) ? (((var_1_19 != -16) && (var_1_17 <= (var_1_17 + var_1_17))) ? ((var_1_17 > var_1_17) ? (var_1_1 == ((signed char) var_1_10)) : (var_1_1 == ((signed char) var_1_10))) : (var_1_1 == ((signed char) var_1_10))) : (var_1_1 == ((signed char) var_1_10))) && (((- (var_1_17 + var_1_17)) > var_1_17) ? (var_1_11 == ((unsigned char) var_1_12)) : 1)) && (var_1_13 == ((unsigned char) (var_1_14 && var_1_15)))) && (var_1_16 == ((signed long int) var_1_19))) && (var_1_17 == ((float) var_1_18))) && (var_1_19 == ((unsigned long int) var_1_20)) ; [L90] RET, EXPR property() [L90] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-2147483648, var_1_17=2147483653, var_1_18=2147483653, var_1_19=2147483648, var_1_1=126, var_1_20=2147483648] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=126, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=1, var_1_16=-2147483648, var_1_17=2147483653, var_1_18=2147483653, var_1_19=2147483648, var_1_1=126, var_1_20=2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 22:23:09,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx --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 bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:12,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:12,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:23:12,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:12,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:12,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:12,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:12,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:12,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:12,826 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:12,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:12,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:12,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:12,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:12,829 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:12,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:12,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:12,831 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:12,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:12,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:12,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:12,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:12,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:12,834 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:23:12,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:23:12,835 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:23:12,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:12,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:12,836 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:12,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:12,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:12,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:12,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:12,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:12,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:12,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:12,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:12,840 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:23:12,841 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:23:12,841 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:12,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:12,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:12,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:12,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:12,842 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:23:12,843 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_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4858d1901c3c90630688f631857e35419d28ea39c5c3a06b704467149a98bd [2023-11-21 22:23:13,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:13,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:13,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:13,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:13,325 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:13,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-21 22:23:16,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:16,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:16,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-21 22:23:16,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data/404875ca4/536f83c3814b4b9eb850380118f4d774/FLAGba4e602b0 [2023-11-21 22:23:16,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/data/404875ca4/536f83c3814b4b9eb850380118f4d774 [2023-11-21 22:23:16,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:16,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:16,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:16,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:16,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:16,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:16" (1/1) ... [2023-11-21 22:23:16,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661fa1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:16, skipping insertion in model container [2023-11-21 22:23:16,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:16" (1/1) ... [2023-11-21 22:23:16,952 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:17,131 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_0fdad08e-7684-4aee-97b6-9f4c001424ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-21 22:23:17,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:17,213 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:17,238 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_0fdad08e-7684-4aee-97b6-9f4c001424ee/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-88.i[915,928] [2023-11-21 22:23:17,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:17,284 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:17,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17 WrapperNode [2023-11-21 22:23:17,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:17,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:17,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:17,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:17,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,371 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88 [2023-11-21 22:23:17,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:17,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:17,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:17,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:17,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,389 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,400 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:23:17,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:17,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:17,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:17,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:17,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:17,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:17,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:17,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:23:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:23:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:23:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:17,629 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:17,632 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:18,138 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:18,274 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:18,275 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:23:18,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:18 BoogieIcfgContainer [2023-11-21 22:23:18,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:18,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:18,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:18,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:18,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:16" (1/3) ... [2023-11-21 22:23:18,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430e1081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:18, skipping insertion in model container [2023-11-21 22:23:18,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17" (2/3) ... [2023-11-21 22:23:18,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430e1081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:18, skipping insertion in model container [2023-11-21 22:23:18,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:18" (3/3) ... [2023-11-21 22:23:18,297 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-88.i [2023-11-21 22:23:18,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:18,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:23:18,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:18,381 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;@7a1ed684, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:18,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:23:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-21 22:23:18,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:23:18,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:18,397 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:18,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:23:18,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash 825843420, now seen corresponding path program 1 times [2023-11-21 22:23:18,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:23:18,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040264798] [2023-11-21 22:23:18,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:18,416 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 [2023-11-21 22:23:18,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:23:18,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:23:18,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:23:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:18,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 22:23:18,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:23:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-21 22:23:24,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:23:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-21 22:23:26,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:23:26,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040264798] [2023-11-21 22:23:26,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040264798] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:23:26,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:23:26,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-21 22:23:26,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293978196] [2023-11-21 22:23:26,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:23:26,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 22:23:26,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:23:26,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 22:23:26,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:23:26,137 INFO L87 Difference]: Start difference. First operand has 26 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:23:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:23:26,655 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2023-11-21 22:23:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:23:26,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 43 [2023-11-21 22:23:26,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:23:26,665 INFO L225 Difference]: With dead ends: 51 [2023-11-21 22:23:26,666 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:23:26,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:23:26,675 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:23:26,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 52 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:23:26,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:23:26,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:23:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:26,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:23:26,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2023-11-21 22:23:26,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:23:26,706 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:23:26,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 9 states have internal predecessors, (24), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-21 22:23:26,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:23:26,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:23:26,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:23:26,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:23:26,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:23:26,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:23:27,539 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-11-21 22:23:27,540 INFO L895 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,540 INFO L895 garLoopResultBuilder]: At program point L60-1(line 60) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,540 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-21 22:23:27,540 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-21 22:23:27,540 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-21 22:23:27,541 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,541 INFO L895 garLoopResultBuilder]: At program point L69-1(line 69) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,541 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-21 22:23:27,541 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-21 22:23:27,542 INFO L895 garLoopResultBuilder]: At program point L86-2(lines 86 92) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,542 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,542 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,542 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-11-21 22:23:27,543 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,543 INFO L895 garLoopResultBuilder]: At program point L66-1(line 66) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,543 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:23:27,543 INFO L899 garLoopResultBuilder]: For program point L75(lines 58 76) no Hoare annotation was computed. [2023-11-21 22:23:27,543 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:23:27,544 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-11-21 22:23:27,544 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,544 INFO L895 garLoopResultBuilder]: At program point L63-1(line 63) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_18~0 (fp.neg .cse0)) (fp.geq ~var_1_18~0 (fp.neg .cse1))) (and (fp.leq ~var_1_18~0 .cse1) (fp.geq ~var_1_18~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:23:27,544 INFO L895 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-11-21 22:23:27,545 INFO L899 garLoopResultBuilder]: For program point L72-1(line 72) no Hoare annotation was computed. [2023-11-21 22:23:27,545 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-21 22:23:27,545 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-21 22:23:27,548 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:23:27,551 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:23:27,563 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-21 22:23:27,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:23:27 BoogieIcfgContainer [2023-11-21 22:23:27,565 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:23:27,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:23:27,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:23:27,566 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:23:27,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:18" (3/4) ... [2023-11-21 22:23:27,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:23:27,572 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 22:23:27,578 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-21 22:23:27,578 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-21 22:23:27,578 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 22:23:27,579 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:23:27,697 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:23:27,697 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:23:27,697 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:23:27,699 INFO L158 Benchmark]: Toolchain (without parser) took 10783.10ms. Allocated memory was 75.5MB in the beginning and 222.3MB in the end (delta: 146.8MB). Free memory was 51.6MB in the beginning and 165.6MB in the end (delta: -114.0MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2023-11-21 22:23:27,699 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:23:27,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.31ms. Allocated memory is still 75.5MB. Free memory was 51.4MB in the beginning and 39.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:23:27,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.85ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 39.1MB in the beginning and 73.6MB in the end (delta: -34.5MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-21 22:23:27,701 INFO L158 Benchmark]: Boogie Preprocessor took 48.47ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 71.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:23:27,702 INFO L158 Benchmark]: RCFGBuilder took 855.28ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 49.4MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:23:27,703 INFO L158 Benchmark]: TraceAbstraction took 9275.66ms. Allocated memory was 94.4MB in the beginning and 222.3MB in the end (delta: 127.9MB). Free memory was 71.9MB in the beginning and 170.8MB in the end (delta: -98.9MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-11-21 22:23:27,704 INFO L158 Benchmark]: Witness Printer took 131.79ms. Allocated memory is still 222.3MB. Free memory was 170.8MB in the beginning and 165.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:23:27,707 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.31ms. Allocated memory is still 75.5MB. Free memory was 51.4MB in the beginning and 39.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.85ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 39.1MB in the beginning and 73.6MB in the end (delta: -34.5MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.47ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 71.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 855.28ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 49.4MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9275.66ms. Allocated memory was 94.4MB in the beginning and 222.3MB in the end (delta: 127.9MB). Free memory was 71.9MB in the beginning and 170.8MB in the end (delta: -98.9MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Witness Printer took 131.79ms. Allocated memory is still 222.3MB. Free memory was 170.8MB in the beginning and 165.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 17 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 34 PreInvPairs, 46 NumberOfFragments, 323 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 133 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 24 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 0 PerfectInterpolantSequences, 216/220 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-21 22:23:27,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdad08e-7684-4aee-97b6-9f4c001424ee/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE