./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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_c8bf305d-cfeb-4508-a660-19758d4d54e9/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 50cbd928f19c8de7d0fc761d4d92468ffab28bbc323c734fbd3b038f244d4544 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:23,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:23,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 20:59:23,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:23,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:23,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:23,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:23,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:23,946 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:23,951 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:23,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:23,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:23,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:23,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:23,956 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:23,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:23,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:23,957 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:59:23,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:59:23,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:59:23,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:23,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:23,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:23,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:23,960 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:59:23,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:23,961 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:23,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:23,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:23,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:23,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:23,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:23,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:23,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:23,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:23,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:59:23,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:59:23,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:23,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:23,966 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:23,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:23,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:23,967 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_c8bf305d-cfeb-4508-a660-19758d4d54e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50cbd928f19c8de7d0fc761d4d92468ffab28bbc323c734fbd3b038f244d4544 [2023-11-21 20:59:24,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:24,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:24,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:24,353 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:24,354 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:24,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i [2023-11-21 20:59:27,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:27,805 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:27,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i [2023-11-21 20:59:27,816 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data/653a0e734/02e336e8259b41c9bcd836f2330057a3/FLAGc1c97951b [2023-11-21 20:59:27,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data/653a0e734/02e336e8259b41c9bcd836f2330057a3 [2023-11-21 20:59:27,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:27,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:27,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:27,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:27,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:27,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:27" (1/1) ... [2023-11-21 20:59:27,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba439cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:27, skipping insertion in model container [2023-11-21 20:59:27,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:27" (1/1) ... [2023-11-21 20:59:27,892 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:28,077 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_c8bf305d-cfeb-4508-a660-19758d4d54e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i[915,928] [2023-11-21 20:59:28,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:28,142 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:28,160 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_c8bf305d-cfeb-4508-a660-19758d4d54e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i[915,928] [2023-11-21 20:59:28,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:28,226 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:28,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28 WrapperNode [2023-11-21 20:59:28,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:28,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:28,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:28,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:28,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,282 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-21 20:59:28,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:28,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:28,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:28,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:28,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,305 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,318 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 20:59:28,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,338 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:28,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:28,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:28,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:28,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (1/1) ... [2023-11-21 20:59:28,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:28,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:28,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:28,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:59:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:59:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:59:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:59:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:28,508 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:28,509 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:28,916 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:29,214 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:29,221 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 20:59:29,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:29 BoogieIcfgContainer [2023-11-21 20:59:29,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:29,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:29,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:29,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:29,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:27" (1/3) ... [2023-11-21 20:59:29,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d4f911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:29, skipping insertion in model container [2023-11-21 20:59:29,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:28" (2/3) ... [2023-11-21 20:59:29,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d4f911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:29, skipping insertion in model container [2023-11-21 20:59:29,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:29" (3/3) ... [2023-11-21 20:59:29,250 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-91.i [2023-11-21 20:59:29,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:29,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:59:29,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:29,345 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;@cfbe7e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:29,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:59:29,351 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 20:59:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 20:59:29,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:29,363 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 20:59:29,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:29,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:29,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1686744010, now seen corresponding path program 1 times [2023-11-21 20:59:29,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:29,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242129603] [2023-11-21 20:59:29,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:29,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:29,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 20:59:29,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088747216] [2023-11-21 20:59:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:29,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:59:29,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:29,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:59:29,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 20:59:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:29,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:59:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:30,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:59:30,114 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 20:59:30,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 20:59:30,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:30,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 20:59:30,331 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 20:59:30,335 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 20:59:30,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:59:30 BoogieIcfgContainer [2023-11-21 20:59:30,420 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 20:59:30,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:59:30,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:59:30,422 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:59:30,422 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:29" (3/4) ... [2023-11-21 20:59:30,425 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 20:59:30,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:59:30,428 INFO L158 Benchmark]: Toolchain (without parser) took 2585.44ms. Allocated memory was 165.7MB in the beginning and 216.0MB in the end (delta: 50.3MB). Free memory was 123.9MB in the beginning and 155.6MB in the end (delta: -31.7MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-21 20:59:30,428 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:30,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.98ms. Allocated memory is still 165.7MB. Free memory was 123.2MB in the beginning and 111.4MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 20:59:30,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.10ms. Allocated memory is still 165.7MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:30,438 INFO L158 Benchmark]: Boogie Preprocessor took 54.94ms. Allocated memory is still 165.7MB. Free memory was 109.3MB in the beginning and 106.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 20:59:30,439 INFO L158 Benchmark]: RCFGBuilder took 878.60ms. Allocated memory is still 165.7MB. Free memory was 106.5MB in the beginning and 132.8MB in the end (delta: -26.3MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2023-11-21 20:59:30,440 INFO L158 Benchmark]: TraceAbstraction took 1181.36ms. Allocated memory is still 216.0MB. Free memory was 185.0MB in the beginning and 155.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 20:59:30,441 INFO L158 Benchmark]: Witness Printer took 4.97ms. Allocated memory is still 216.0MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:30,450 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.98ms. Allocated memory is still 165.7MB. Free memory was 123.2MB in the beginning and 111.4MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.10ms. Allocated memory is still 165.7MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.94ms. Allocated memory is still 165.7MB. Free memory was 109.3MB in the beginning and 106.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 878.60ms. Allocated memory is still 165.7MB. Free memory was 106.5MB in the beginning and 132.8MB in the end (delta: -26.3MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1181.36ms. Allocated memory is still 216.0MB. Free memory was 185.0MB in the beginning and 155.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.97ms. Allocated memory is still 216.0MB. Free memory is still 155.6MB. 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 51, overapproximation of bitwiseAnd at line 40. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 100000000; [L23] signed short int var_1_5 = 1; [L24] signed short int var_1_8 = -128; [L25] signed short int var_1_9 = 1; [L26] float var_1_10 = 25.8; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 1; [L29] float var_1_13 = 16.45; [L30] unsigned long int var_1_14 = 200; [L31] unsigned short int var_1_15 = 32; [L32] unsigned short int var_1_16 = 256; [L90] isInitial = 1 [L91] FCALL initially() [L92] COND TRUE 1 [L93] FCALL updateLastVariables() [L94] CALL updateVariables() [L65] var_1_8 = __VERIFIER_nondet_short() [L66] CALL assume_abort_if_not(var_1_8 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=1] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_8 >= -32767) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=1] [L68] var_1_9 = __VERIFIER_nondet_short() [L69] CALL assume_abort_if_not(var_1_9 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_9 >= -32767) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L70] CALL assume_abort_if_not(var_1_9 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_9 <= 32766) VAL [isInitial=1, var_1_10=129/5, var_1_11=0, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L71] var_1_11 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L73] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=1, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L76] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=329/20, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L77] var_1_13 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=200, var_1_15=32, var_1_16=256, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L79] var_1_16 = __VERIFIER_nondet_ushort() [L80] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=200, var_1_15=32, var_1_16=1, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=200, var_1_15=32, var_1_16=1, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L81] CALL assume_abort_if_not(var_1_16 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=200, var_1_15=32, var_1_16=1, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_16 <= 65534) VAL [isInitial=1, var_1_10=129/5, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=200, var_1_15=32, var_1_16=1, var_1_1=100000000, var_1_5=1, var_1_8=48, var_1_9=48] [L94] RET updateVariables() [L95] CALL step() [L36] var_1_15 = var_1_16 [L37] var_1_14 = var_1_15 [L38] COND TRUE \read(var_1_11) [L39] COND FALSE !(\read(var_1_12)) [L46] var_1_10 = var_1_13 [L51] COND FALSE !(var_1_10 >= 50.4f) [L54] COND TRUE var_1_15 == (var_1_14 * var_1_15) [L55] COND FALSE !(var_1_10 >= (var_1_10 + var_1_10)) [L58] var_1_5 = var_1_8 [L95] RET step() [L96] CALL, EXPR property() [L86] EXPR (((var_1_10 >= 50.4f) ? (var_1_1 == ((unsigned long int) ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : 1) && ((var_1_15 == (var_1_14 * var_1_15)) ? ((var_1_10 >= (var_1_10 + var_1_10)) ? (var_1_5 == ((signed short int) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_5 == ((signed short int) var_1_8))) : (var_1_5 == ((signed short int) var_1_8)))) && (var_1_11 ? (var_1_12 ? (((var_1_15 & var_1_14) == var_1_15) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13))) [L86-L87] return (((((var_1_10 >= 50.4f) ? (var_1_1 == ((unsigned long int) ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : 1) && ((var_1_15 == (var_1_14 * var_1_15)) ? ((var_1_10 >= (var_1_10 + var_1_10)) ? (var_1_5 == ((signed short int) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_5 == ((signed short int) var_1_8))) : (var_1_5 == ((signed short int) var_1_8)))) && (var_1_11 ? (var_1_12 ? (((var_1_15 & var_1_14) == var_1_15) ? (var_1_10 == ((float) var_1_13)) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13))) : (var_1_10 == ((float) var_1_13)))) && (var_1_14 == ((unsigned long int) var_1_15))) && (var_1_15 == ((unsigned short int) var_1_16)) ; [L96] RET, EXPR property() [L96] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_1=100000000, var_1_5=48, var_1_8=48, var_1_9=48] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_1=100000000, var_1_5=48, var_1_8=48, var_1_9=48] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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 20:59:30,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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_c8bf305d-cfeb-4508-a660-19758d4d54e9/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 50cbd928f19c8de7d0fc761d4d92468ffab28bbc323c734fbd3b038f244d4544 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:33,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:33,350 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 20:59:33,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:33,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:33,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:33,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:33,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:33,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:33,423 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:33,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:33,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:33,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:33,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:33,427 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:33,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:33,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:33,429 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:59:33,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:59:33,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:33,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:33,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:33,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:33,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 20:59:33,432 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 20:59:33,433 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 20:59:33,433 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:59:33,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:33,434 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:33,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:33,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:33,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:33,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:33,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:33,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:33,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:33,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:33,439 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 20:59:33,439 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 20:59:33,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:33,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:33,440 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:33,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:33,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:33,442 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 20:59:33,442 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_c8bf305d-cfeb-4508-a660-19758d4d54e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50cbd928f19c8de7d0fc761d4d92468ffab28bbc323c734fbd3b038f244d4544 [2023-11-21 20:59:33,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:33,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:33,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:33,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:33,915 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:33,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i [2023-11-21 20:59:37,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:37,360 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:37,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i [2023-11-21 20:59:37,370 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data/71428de73/47df39447cd54f2cb1ba4c159cdc50e4/FLAG964f664d3 [2023-11-21 20:59:37,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/data/71428de73/47df39447cd54f2cb1ba4c159cdc50e4 [2023-11-21 20:59:37,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:37,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:37,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:37,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:37,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:37,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70976156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37, skipping insertion in model container [2023-11-21 20:59:37,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,424 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:37,579 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_c8bf305d-cfeb-4508-a660-19758d4d54e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i[915,928] [2023-11-21 20:59:37,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:37,633 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:37,647 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_c8bf305d-cfeb-4508-a660-19758d4d54e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-91.i[915,928] [2023-11-21 20:59:37,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:37,686 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:37,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37 WrapperNode [2023-11-21 20:59:37,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:37,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:37,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:37,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:37,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,734 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2023-11-21 20:59:37,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:37,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:37,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:37,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:37,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,753 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,781 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 20:59:37,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:37,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:37,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:37,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:37,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (1/1) ... [2023-11-21 20:59:37,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:37,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:37,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:37,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:59:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 20:59:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:59:37,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:59:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:38,020 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:38,023 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:38,452 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:38,577 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:38,578 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 20:59:38,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:38 BoogieIcfgContainer [2023-11-21 20:59:38,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:38,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:38,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:38,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:38,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:37" (1/3) ... [2023-11-21 20:59:38,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531dc380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:38, skipping insertion in model container [2023-11-21 20:59:38,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:37" (2/3) ... [2023-11-21 20:59:38,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531dc380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:38, skipping insertion in model container [2023-11-21 20:59:38,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:38" (3/3) ... [2023-11-21 20:59:38,589 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-91.i [2023-11-21 20:59:38,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:38,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:59:38,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:38,665 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;@5e53533e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:38,666 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:59:38,670 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 20:59:38,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 20:59:38,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:38,680 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 20:59:38,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:38,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1743606990, now seen corresponding path program 1 times [2023-11-21 20:59:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 20:59:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650941625] [2023-11-21 20:59:38,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:38,706 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 20:59:38,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 20:59:38,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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 20:59:38,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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 20:59:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:38,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 20:59:39,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:02,365 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 21:00:02,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:00:07,193 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 21:00:07,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:00:07,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650941625] [2023-11-21 21:00:07,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650941625] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:00:07,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 21:00:07,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-21 21:00:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479138289] [2023-11-21 21:00:07,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 21:00:07,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 21:00:07,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:00:07,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 21:00:07,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-21 21:00:07,236 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 21:00:07,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:07,877 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2023-11-21 21:00:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 21:00:07,880 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 21:00:07,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:07,885 INFO L225 Difference]: With dead ends: 51 [2023-11-21 21:00:07,885 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 21:00:07,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-21 21:00:07,892 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:07,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 52 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 21:00:07,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 21:00:07,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 21:00:07,927 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 21:00:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 21:00:07,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2023-11-21 21:00:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:07,929 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:00:07,929 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 21:00:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 21:00:07,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 21:00:07,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:00:07,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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)] Ended with exit code 0 [2023-11-21 21:00:08,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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 21:00:08,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 21:00:08,741 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-21 21:00:08,741 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-21 21:00:08,741 INFO L899 garLoopResultBuilder]: For program point L81(lines 64 82) no Hoare annotation was computed. [2023-11-21 21:00:08,742 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-21 21:00:08,742 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-21 21:00:08,743 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,743 INFO L895 garLoopResultBuilder]: At program point L69-1(line 69) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-21 21:00:08,743 INFO L895 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-11-21 21:00:08,744 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2023-11-21 21:00:08,744 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-11-21 21:00:08,744 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,745 INFO L895 garLoopResultBuilder]: At program point L66-1(line 66) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,745 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 21:00:08,745 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,746 INFO L895 garLoopResultBuilder]: At program point L75-1(line 75) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,746 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 21:00:08,746 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-11-21 21:00:08,746 INFO L895 garLoopResultBuilder]: At program point L92-2(lines 92 98) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,747 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,747 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,747 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-11-21 21:00:08,748 INFO L895 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,748 INFO L895 garLoopResultBuilder]: At program point L72-1(line 72) the Hoare annotation is: (and (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_13~0 .cse0) (fp.geq ~var_1_13~0 .cse1)) (and (fp.geq ~var_1_13~0 (fp.neg .cse0)) (fp.leq ~var_1_13~0 (fp.neg .cse1))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 21:00:08,748 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-21 21:00:08,749 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-21 21:00:08,752 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:00:08,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:00:08,769 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-21 21:00:08,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:08 BoogieIcfgContainer [2023-11-21 21:00:08,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:00:08,771 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:08,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:08,772 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:08,772 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:38" (3/4) ... [2023-11-21 21:00:08,774 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 21:00:08,778 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 21:00:08,784 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-21 21:00:08,785 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-21 21:00:08,786 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 21:00:08,786 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 21:00:08,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:00:08,893 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 21:00:08,893 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:08,894 INFO L158 Benchmark]: Toolchain (without parser) took 31505.16ms. Allocated memory was 69.2MB in the beginning and 408.9MB in the end (delta: 339.7MB). Free memory was 44.7MB in the beginning and 258.6MB in the end (delta: -213.8MB). Peak memory consumption was 128.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:08,894 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 54.5MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:08,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.42ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 32.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:08,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.81ms. Allocated memory is still 69.2MB. Free memory was 32.1MB in the beginning and 30.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:08,896 INFO L158 Benchmark]: Boogie Preprocessor took 66.61ms. Allocated memory is still 69.2MB. Free memory was 30.2MB in the beginning and 47.4MB in the end (delta: -17.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-21 21:00:08,896 INFO L158 Benchmark]: RCFGBuilder took 776.27ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 44.4MB in the end (delta: 2.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-11-21 21:00:08,897 INFO L158 Benchmark]: TraceAbstraction took 30188.57ms. Allocated memory was 69.2MB in the beginning and 408.9MB in the end (delta: 339.7MB). Free memory was 43.8MB in the beginning and 263.8MB in the end (delta: -220.0MB). Peak memory consumption was 119.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:08,897 INFO L158 Benchmark]: Witness Printer took 122.04ms. Allocated memory is still 408.9MB. Free memory was 263.8MB in the beginning and 258.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 21:00:08,899 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 54.5MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.42ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 32.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.81ms. Allocated memory is still 69.2MB. Free memory was 32.1MB in the beginning and 30.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.61ms. Allocated memory is still 69.2MB. Free memory was 30.2MB in the beginning and 47.4MB in the end (delta: -17.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * RCFGBuilder took 776.27ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 44.4MB in the end (delta: 2.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * TraceAbstraction took 30188.57ms. Allocated memory was 69.2MB in the beginning and 408.9MB in the end (delta: 339.7MB). Free memory was 43.8MB in the beginning and 263.8MB in the end (delta: -220.0MB). Peak memory consumption was 119.2MB. Max. memory is 16.1GB. * Witness Printer took 122.04ms. Allocated memory is still 408.9MB. Free memory was 263.8MB in the beginning and 258.6MB 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: 30.1s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 17 mSDtfsCounter, 78 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, 0.2s 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, 0.2s SatisfiabilityAnalysisTime, 28.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 23 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 14 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: 92]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-21 21:00:08,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bf305d-cfeb-4508-a660-19758d4d54e9/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