./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:48:05,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:48:05,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:48:05,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:48:05,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:48:05,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:48:05,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:48:05,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:48:05,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:48:05,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:48:05,205 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:48:05,205 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:48:05,206 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:48:05,206 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:48:05,206 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:48:05,207 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:48:05,207 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:48:05,207 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:48:05,208 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:48:05,208 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:48:05,208 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:48:05,212 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:48:05,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:48:05,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:48:05,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:48:05,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:48:05,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:48:05,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:48:05,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:48:05,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:48:05,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:48:05,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:48:05,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:48:05,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:48:05,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:48:05,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:48:05,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:48:05,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:48:05,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:05,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:48:05,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:48:05,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:48:05,222 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:48:05,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:48:05,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:48:05,223 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:48:05,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:48:05,223 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c [2024-11-09 04:48:05,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:48:05,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:48:05,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:48:05,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:48:05,531 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:48:05,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i Unable to find full path for "g++" [2024-11-09 04:48:07,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:48:07,798 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:48:07,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i [2024-11-09 04:48:07,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data/57a469009/b3e7350bfd7c4449a0328ad4f9229f8d/FLAGb5bcdef27 [2024-11-09 04:48:07,832 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data/57a469009/b3e7350bfd7c4449a0328ad4f9229f8d [2024-11-09 04:48:07,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:48:07,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:48:07,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:07,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:48:07,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:48:07,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:07" (1/1) ... [2024-11-09 04:48:07,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13da5762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:07, skipping insertion in model container [2024-11-09 04:48:07,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:07" (1/1) ... [2024-11-09 04:48:07,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:48:08,104 WARN L250 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_c53bdd48-63fc-43e4-bddb-682a3577e273/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i[914,927] [2024-11-09 04:48:08,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:08,156 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:48:08,171 WARN L250 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_c53bdd48-63fc-43e4-bddb-682a3577e273/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i[914,927] [2024-11-09 04:48:08,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:08,211 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:48:08,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08 WrapperNode [2024-11-09 04:48:08,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:08,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:08,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:48:08,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:48:08,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,254 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 67 [2024-11-09 04:48:08,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:08,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:48:08,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:48:08,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:48:08,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:48:08,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:48:08,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:48:08,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:48:08,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (1/1) ... [2024-11-09 04:48:08,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:08,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:08,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:48:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:48:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:48:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:48:08,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:48:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:48:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:48:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:48:08,444 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:48:08,446 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:48:08,596 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 04:48:08,596 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:48:08,665 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:48:08,665 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:48:08,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:08 BoogieIcfgContainer [2024-11-09 04:48:08,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:48:08,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:48:08,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:48:08,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:48:08,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:48:07" (1/3) ... [2024-11-09 04:48:08,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2b13e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:08, skipping insertion in model container [2024-11-09 04:48:08,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:08" (2/3) ... [2024-11-09 04:48:08,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2b13e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:08, skipping insertion in model container [2024-11-09 04:48:08,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:08" (3/3) ... [2024-11-09 04:48:08,677 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-0.i [2024-11-09 04:48:08,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:48:08,696 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:48:08,757 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:48:08,762 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@65773806, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:48:08,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:48:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:48:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 04:48:08,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:08,779 INFO L215 NwaCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:08,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:08,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:08,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1449989327, now seen corresponding path program 1 times [2024-11-09 04:48:08,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:08,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26660617] [2024-11-09 04:48:08,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:08,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:48:08,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:48:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:48:09,081 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:48:09,083 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:48:09,085 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:48:09,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:48:09,091 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:48:09,119 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:48:09,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:48:09 BoogieIcfgContainer [2024-11-09 04:48:09,122 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:48:09,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:48:09,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:48:09,123 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:48:09,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:08" (3/4) ... [2024-11-09 04:48:09,126 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:48:09,127 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:48:09,129 INFO L158 Benchmark]: Toolchain (without parser) took 1291.23ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 64.3MB in the end (delta: 51.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-09 04:48:09,129 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:48:09,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.95ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 102.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:48:09,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.72ms. Allocated memory is still 146.8MB. Free memory was 102.4MB in the beginning and 100.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:48:09,131 INFO L158 Benchmark]: Boogie Preprocessor took 37.17ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 99.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:48:09,131 INFO L158 Benchmark]: RCFGBuilder took 371.11ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 85.3MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:48:09,132 INFO L158 Benchmark]: TraceAbstraction took 452.97ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 64.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:48:09,132 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 146.8MB. Free memory was 64.6MB in the beginning and 64.3MB in the end (delta: 318.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:48:09,135 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.95ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 102.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.72ms. Allocated memory is still 146.8MB. Free memory was 102.4MB in the beginning and 100.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.17ms. Allocated memory is still 146.8MB. Free memory was 100.9MB in the beginning and 99.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.11ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 85.3MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 452.97ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 64.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 146.8MB. Free memory was 64.6MB in the beginning and 64.3MB in the end (delta: 318.6kB). 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 33, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 31.25; [L23] float var_1_2 = 31.2; [L24] float var_1_3 = 0.0; [L25] float var_1_4 = 64.125; [L26] signed short int var_1_5 = -128; [L27] signed short int var_1_6 = 10; [L28] signed short int var_1_7 = -4; [L58] isInitial = 1 [L59] FCALL initially() [L60] COND TRUE 1 [L61] FCALL updateLastVariables() [L62] CALL updateVariables() [L38] var_1_2 = __VERIFIER_nondet_float() [L39] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_3=0, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L20] COND FALSE !(!cond) [L39] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=125/4, var_1_3=0, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L40] var_1_3 = __VERIFIER_nondet_float() [L41] CALL assume_abort_if_not((var_1_3 >= 4611686.018427382800e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L20] COND FALSE !(!cond) [L41] RET assume_abort_if_not((var_1_3 >= 4611686.018427382800e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=125/4, var_1_4=513/8, var_1_5=-128, var_1_6=10, var_1_7=-4] [L42] var_1_4 = __VERIFIER_nondet_float() [L43] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=10, var_1_7=-4] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=10, var_1_7=-4] [L44] var_1_6 = __VERIFIER_nondet_short() [L45] CALL assume_abort_if_not(var_1_6 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=-4] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_6 >= -16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=-4] [L46] CALL assume_abort_if_not(var_1_6 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=-4] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_6 <= 16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=-4] [L47] var_1_7 = __VERIFIER_nondet_short() [L48] CALL assume_abort_if_not(var_1_7 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=16255] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_7 >= -16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=16255] [L49] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=16255] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, var_1_1=125/4, var_1_5=-128, var_1_6=-16383, var_1_7=16255] [L62] RET updateVariables() [L63] CALL step() [L32] var_1_1 = (((((256.75f) < (var_1_2)) ? (256.75f) : (var_1_2))) - (var_1_3 - var_1_4)) [L33] COND FALSE !(var_1_4 <= (var_1_2 + (var_1_3 + var_1_1))) [L63] RET step() [L64] CALL, EXPR property() [L54-L55] return (var_1_1 == ((float) (((((256.75f) < (var_1_2)) ? (256.75f) : (var_1_2))) - (var_1_3 - var_1_4)))) && ((var_1_4 <= (var_1_2 + (var_1_3 + var_1_1))) ? (var_1_5 == ((signed short int) (var_1_6 + var_1_7))) : 1) ; [L64] RET, EXPR property() [L64] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_5=-128, var_1_6=-16383, var_1_7=16255] [L19] reach_error() VAL [isInitial=1, var_1_5=-128, var_1_6=-16383, var_1_7=16255] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 7, 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=21occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 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 [2024-11-09 04:48:09,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:48:11,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:48:11,688 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:48:11,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:48:11,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:48:11,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:48:11,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:48:11,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:48:11,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:48:11,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:48:11,734 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:48:11,734 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:48:11,735 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:48:11,735 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:48:11,736 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:48:11,738 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:48:11,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:48:11,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:48:11,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:48:11,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:48:11,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:48:11,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:48:11,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:48:11,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:48:11,744 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:48:11,744 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:48:11,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:48:11,745 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:48:11,745 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:48:11,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:48:11,746 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:48:11,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:48:11,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:48:11,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:48:11,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:48:11,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:11,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:48:11,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:48:11,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:48:11,750 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:48:11,751 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:48:11,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:48:11,752 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:48:11,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 342a391425e9273144e7f8d0607b5266ee0425388e31ab43115bf3acb263154c [2024-11-09 04:48:12,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:48:12,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:48:12,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:48:12,140 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:48:12,141 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:48:12,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i Unable to find full path for "g++" [2024-11-09 04:48:14,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:48:14,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:48:14,391 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i [2024-11-09 04:48:14,402 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data/2fb3e55a0/e8c52e4a46ec4eb38a4a9f3829da1519/FLAG494ef2a24 [2024-11-09 04:48:14,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/data/2fb3e55a0/e8c52e4a46ec4eb38a4a9f3829da1519 [2024-11-09 04:48:14,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:48:14,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:48:14,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:14,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:48:14,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:48:14,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:14" (1/1) ... [2024-11-09 04:48:14,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae831a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:14, skipping insertion in model container [2024-11-09 04:48:14,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:14" (1/1) ... [2024-11-09 04:48:14,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:48:15,002 WARN L250 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_c53bdd48-63fc-43e4-bddb-682a3577e273/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i[914,927] [2024-11-09 04:48:15,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:15,045 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:48:15,058 WARN L250 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_c53bdd48-63fc-43e4-bddb-682a3577e273/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-0.i[914,927] [2024-11-09 04:48:15,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:15,089 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:48:15,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15 WrapperNode [2024-11-09 04:48:15,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:15,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:15,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:48:15,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:48:15,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,127 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2024-11-09 04:48:15,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:15,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:48:15,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:48:15,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:48:15,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:48:15,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:48:15,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:48:15,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:48:15,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (1/1) ... [2024-11-09 04:48:15,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:15,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:48:15,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:48:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:48:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:48:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:48:15,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:48:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:48:15,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:48:15,344 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:48:15,346 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:48:17,919 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 04:48:17,919 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:48:17,936 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:48:17,938 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:48:17,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:17 BoogieIcfgContainer [2024-11-09 04:48:17,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:48:17,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:48:17,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:48:17,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:48:17,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:48:14" (1/3) ... [2024-11-09 04:48:17,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4407acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:17, skipping insertion in model container [2024-11-09 04:48:17,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:15" (2/3) ... [2024-11-09 04:48:17,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4407acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:17, skipping insertion in model container [2024-11-09 04:48:17,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:17" (3/3) ... [2024-11-09 04:48:17,951 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-0.i [2024-11-09 04:48:17,970 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:48:17,971 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:48:18,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:48:18,043 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@14078627, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:48:18,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:48:18,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:48:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 04:48:18,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:18,058 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:18,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:18,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash -809313889, now seen corresponding path program 1 times [2024-11-09 04:48:18,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:48:18,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605443335] [2024-11-09 04:48:18,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:18,075 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 [2024-11-09 04:48:18,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:48:18,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:48:18,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:48:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:18,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:48:18,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 04:48:18,370 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:48:18,371 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:48:18,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605443335] [2024-11-09 04:48:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605443335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:18,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:18,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:48:18,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947938140] [2024-11-09 04:48:18,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:18,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:48:18,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:48:18,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:48:18,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:48:18,411 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 04:48:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:18,432 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2024-11-09 04:48:18,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:48:18,435 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-11-09 04:48:18,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:18,442 INFO L225 Difference]: With dead ends: 57 [2024-11-09 04:48:18,442 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 04:48:18,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:48:18,449 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:18,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:48:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 04:48:18,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 04:48:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:48:18,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-11-09 04:48:18,488 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2024-11-09 04:48:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:18,488 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-09 04:48:18,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 04:48:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-09 04:48:18,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 04:48:18,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:18,491 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:18,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 04:48:18,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:48:18,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:48:18,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:18,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1353734491, now seen corresponding path program 1 times [2024-11-09 04:48:18,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:48:18,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069255172] [2024-11-09 04:48:18,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:18,697 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 [2024-11-09 04:48:18,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:48:18,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:48:18,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 04:48:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:18,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 04:48:18,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:40,751 WARN L286 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:49:30,148 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (and (fp.geq c_~var_1_2~0 .cse0) (fp.leq c_~var_1_3~0 .cse1) (fp.geq c_~var_1_3~0 .cse0) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1027.0 4.0)))) (let ((.cse4 (fp.lt .cse2 c_~var_1_2~0)) (.cse3 (fp.sub c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0))) (or (and (= c_~var_1_1~0 (fp.sub c_currentRoundingMode .cse2 .cse3)) .cse4) (and (not .cse4) (= c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_2~0 .cse3)))))) (not (fp.leq c_~var_1_4~0 (fp.add c_currentRoundingMode c_~var_1_2~0 (fp.add c_currentRoundingMode c_~var_1_3~0 c_~var_1_1~0)))) (fp.leq c_~var_1_4~0 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0)) (fp.geq c_~var_1_4~0 .cse0) (fp.leq c_~var_1_2~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2024-11-09 04:52:10,742 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0)) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1027.0 4.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse0 (= |c_ULTIMATE.start_property_#res#1| (_ bv1 32)))) (or (and .cse0 (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_3~0 (_ FloatingPoint 8 24)) (~var_1_2~0 (_ FloatingPoint 8 24))) (and (not (fp.lt .cse1 ~var_1_2~0)) (fp.geq ~var_1_4~0 .cse2) (not (fp.leq ~var_1_4~0 (fp.add roundNearestTiesToEven ~var_1_2~0 (fp.add roundNearestTiesToEven ~var_1_3~0 (fp.sub roundNearestTiesToEven ~var_1_2~0 (fp.sub roundNearestTiesToEven ~var_1_3~0 ~var_1_4~0)))))) (fp.leq ~var_1_4~0 .cse3) (fp.leq ~var_1_3~0 .cse4) (fp.geq ~var_1_3~0 .cse2) (fp.geq ~var_1_2~0 .cse2)))) (and (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_3~0 (_ FloatingPoint 8 24)) (~var_1_2~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_2~0 .cse4) (fp.geq ~var_1_4~0 .cse2) (fp.lt .cse1 ~var_1_2~0) (fp.leq ~var_1_4~0 .cse3) (fp.leq ~var_1_3~0 .cse4) (not (fp.leq ~var_1_4~0 (fp.add roundNearestTiesToEven ~var_1_2~0 (fp.add roundNearestTiesToEven ~var_1_3~0 (fp.sub roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ~var_1_3~0 ~var_1_4~0)))))) (fp.geq ~var_1_3~0 .cse2))) .cse0))) is different from false [2024-11-09 04:52:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 04:52:39,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:52:57,356 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1027.0 4.0)))) (let ((.cse0 (fp.lt .cse1 c_~var_1_2~0)) (.cse2 (fp.sub c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)) (.cse3 (not (fp.leq c_~var_1_4~0 (fp.add c_currentRoundingMode c_~var_1_2~0 (fp.add c_currentRoundingMode c_~var_1_3~0 c_~var_1_1~0)))))) (and (or (not .cse0) (and (fp.eq c_~var_1_1~0 (fp.sub c_currentRoundingMode .cse1 .cse2)) .cse3)) (or .cse0 (and (fp.eq c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_2~0 .cse2)) .cse3))))) is different from false [2024-11-09 04:53:15,788 WARN L851 $PredicateComparison]: unable to prove that (or (fp.leq c_~var_1_4~0 (fp.add c_currentRoundingMode c_~var_1_2~0 (fp.add c_currentRoundingMode c_~var_1_3~0 c_~var_1_1~0))) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1027.0 4.0)))) (let ((.cse1 (fp.sub c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)) (.cse0 (fp.lt .cse2 c_~var_1_2~0))) (and (or .cse0 (fp.eq c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_2~0 .cse1))) (or (fp.eq c_~var_1_1~0 (fp.sub c_currentRoundingMode .cse2 .cse1)) (not .cse0)))))) is different from false [2024-11-09 04:54:59,505 WARN L286 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:54:59,507 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:54:59,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069255172] [2024-11-09 04:54:59,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069255172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:54:59,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1259942324] [2024-11-09 04:54:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:54:59,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:54:59,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:54:59,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:54:59,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 04:55:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:55:00,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 04:55:00,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:59:52,762 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0)) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1027.0 4.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse4 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)))) (or (and (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_3~0 (_ FloatingPoint 8 24)) (~var_1_2~0 (_ FloatingPoint 8 24))) (and (not (fp.lt .cse0 ~var_1_2~0)) (fp.geq ~var_1_4~0 .cse1) (not (fp.leq ~var_1_4~0 (fp.add roundNearestTiesToEven ~var_1_2~0 (fp.add roundNearestTiesToEven ~var_1_3~0 (fp.sub roundNearestTiesToEven ~var_1_2~0 (fp.sub roundNearestTiesToEven ~var_1_3~0 ~var_1_4~0)))))) (fp.leq ~var_1_4~0 .cse2) (fp.leq ~var_1_3~0 .cse3) (fp.geq ~var_1_3~0 .cse1) (fp.geq ~var_1_2~0 .cse1))) .cse4) (and (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_3~0 (_ FloatingPoint 8 24)) (~var_1_2~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_2~0 .cse3) (fp.geq ~var_1_4~0 .cse1) (fp.lt .cse0 ~var_1_2~0) (fp.leq ~var_1_4~0 .cse2) (fp.leq ~var_1_3~0 .cse3) (not (fp.leq ~var_1_4~0 (fp.add roundNearestTiesToEven ~var_1_2~0 (fp.add roundNearestTiesToEven ~var_1_3~0 (fp.sub roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ~var_1_3~0 ~var_1_4~0)))))) (fp.geq ~var_1_3~0 .cse1))) .cse4))) is different from false [2024-11-09 04:59:52,775 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 04:59:52,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:07,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1259942324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:07,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789811975] [2024-11-09 05:01:07,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:07,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:07,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:07,146 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:07,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53bdd48-63fc-43e4-bddb-682a3577e273/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:01:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:08,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:01:08,801 INFO L278 TraceCheckSpWp]: Computing forward predicates...