./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E --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 8a6163d47f45212f7977b0ec00cda47715422109bdfe89125f498dea9ca08aac --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:36:13,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:36:13,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:36:13,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:36:13,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:36:13,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:36:13,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:36:13,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:36:13,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:36:13,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:36:13,267 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:36:13,267 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:36:13,267 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:36:13,268 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:36:13,268 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:36:13,268 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:36:13,268 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:36:13,268 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:36:13,268 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:36:13,269 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:36:13,269 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:36:13,269 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:36:13,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:36:13,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:36:13,270 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:36:13,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:36:13,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:36:13,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:36:13,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:36:13,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:36:13,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:36:13,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:36:13,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:36:13,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:36:13,271 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:36:13,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:36:13,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:36:13,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:36:13,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:13,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:36:13,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:36:13,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:36:13,273 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:36:13,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:36:13,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:36:13,273 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:36:13,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:36:13,273 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E 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 -> 8a6163d47f45212f7977b0ec00cda47715422109bdfe89125f498dea9ca08aac [2024-11-14 05:36:13,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:36:13,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:36:13,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:36:13,626 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:36:13,627 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:36:13,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i Unable to find full path for "g++" [2024-11-14 05:36:15,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:36:15,947 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:36:15,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i [2024-11-14 05:36:15,956 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data/1617775f3/ea7fd55d557849849eb0c47f01568f52/FLAGbbc13fcec [2024-11-14 05:36:15,969 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data/1617775f3/ea7fd55d557849849eb0c47f01568f52 [2024-11-14 05:36:15,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:36:15,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:36:15,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:15,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:36:15,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:36:15,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:15" (1/1) ... [2024-11-14 05:36:15,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5c27b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:15, skipping insertion in model container [2024-11-14 05:36:15,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:15" (1/1) ... [2024-11-14 05:36:15,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:36:16,156 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_9938a78c-c370-42b0-9d19-eb55b05094d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i[915,928] [2024-11-14 05:36:16,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:16,218 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:36:16,234 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_9938a78c-c370-42b0-9d19-eb55b05094d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i[915,928] [2024-11-14 05:36:16,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:16,291 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:36:16,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16 WrapperNode [2024-11-14 05:36:16,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:16,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:16,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:36:16,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:36:16,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,345 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-11-14 05:36:16,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:16,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:36:16,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:36:16,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:36:16,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:36:16,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:36:16,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:36:16,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:36:16,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (1/1) ... [2024-11-14 05:36:16,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:16,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:36:16,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:36:16,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:36:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:36:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:36:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:36:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:36:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:36:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:36:16,542 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:36:16,544 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:36:16,780 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 05:36:16,780 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:36:16,880 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:36:16,880 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:36:16,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:16 BoogieIcfgContainer [2024-11-14 05:36:16,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:36:16,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:36:16,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:36:16,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:36:16,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:36:15" (1/3) ... [2024-11-14 05:36:16,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603dfb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:16, skipping insertion in model container [2024-11-14 05:36:16,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:16" (2/3) ... [2024-11-14 05:36:16,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603dfb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:16, skipping insertion in model container [2024-11-14 05:36:16,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:16" (3/3) ... [2024-11-14 05:36:16,890 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-43.i [2024-11-14 05:36:16,905 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:36:16,907 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-43.i that has 2 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:36:16,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:36:16,979 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;@275aa033, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:36:16,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:36:16,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:36:16,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 05:36:16,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:16,993 INFO L215 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:16,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:16,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:16,999 INFO L85 PathProgramCache]: Analyzing trace with hash 637540756, now seen corresponding path program 1 times [2024-11-14 05:36:17,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:36:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301204897] [2024-11-14 05:36:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:36:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:36:17,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:36:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:36:17,444 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:36:17,446 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:36:17,447 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:36:17,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:36:17,454 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:36:17,500 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:36:17,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:36:17 BoogieIcfgContainer [2024-11-14 05:36:17,503 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:36:17,504 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:36:17,504 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:36:17,504 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:36:17,505 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:16" (3/4) ... [2024-11-14 05:36:17,507 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:36:17,508 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:36:17,509 INFO L158 Benchmark]: Toolchain (without parser) took 1535.81ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 85.0MB in the end (delta: 7.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-11-14 05:36:17,509 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:36:17,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.65ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:36:17,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.02ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:36:17,510 INFO L158 Benchmark]: Boogie Preprocessor took 46.10ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 77.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:36:17,510 INFO L158 Benchmark]: RCFGBuilder took 484.11ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 57.9MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:36:17,511 INFO L158 Benchmark]: TraceAbstraction took 620.30ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 85.5MB in the end (delta: -28.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-14 05:36:17,511 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 85.0MB in the end (delta: 552.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:36:17,513 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.65ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.02ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.10ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 77.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 484.11ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 57.9MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 620.30ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 85.5MB in the end (delta: -28.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 85.0MB in the end (delta: 552.7kB). 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 someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of someBinaryFLOATComparisonOperation at line 77, overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of someBinaryFLOATComparisonOperation at line 64, overapproximation of someBinaryDOUBLEComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 64; [L23] float var_1_4 = 64.4; [L24] float var_1_5 = 0.2; [L25] double var_1_8 = 31.75; [L26] double var_1_9 = 50.375; [L27] double var_1_10 = 99.25; [L28] double var_1_11 = 16.4; [L29] double var_1_12 = 64.5; [L30] float var_1_13 = 8.75; [L31] float var_1_14 = 127.1; [L32] unsigned short int var_1_15 = 5; [L33] unsigned char var_1_18 = 0; [L34] unsigned char var_1_19 = 0; [L35] unsigned char var_1_20 = 0; [L36] unsigned char var_1_21 = 8; [L37] double last_1_var_1_8 = 31.75; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L86] last_1_var_1_8 = var_1_8 [L96] RET updateLastVariables() [L97] CALL updateVariables() [L63] var_1_4 = __VERIFIER_nondet_float() [L64] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L65] var_1_5 = __VERIFIER_nondet_float() [L66] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4, var_1_9=403/8] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4, var_1_9=403/8] [L67] var_1_9 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L69] CALL assume_abort_if_not(var_1_9 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_9 != 0.0F) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L70] var_1_10 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L72] var_1_11 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L74] var_1_12 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L76] var_1_14 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L78] var_1_19 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L80] CALL assume_abort_if_not(var_1_19 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_19 <= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L81] var_1_21 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_8=127/4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_8=127/4] [L83] CALL assume_abort_if_not(var_1_21 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=64, var_1_8=127/4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_21 <= 254) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=64, var_1_8=127/4] [L97] RET updateVariables() [L98] CALL step() [L41] COND FALSE !((- (var_1_5 / var_1_9)) != last_1_var_1_8) [L46] var_1_8 = var_1_12 [L48] var_1_13 = (128.75f + var_1_14) [L49] var_1_18 = var_1_19 [L50] var_1_20 = var_1_21 [L51] COND FALSE !(var_1_13 != ((((var_1_13) > ((var_1_4 - var_1_5))) ? (var_1_13) : ((var_1_4 - var_1_5))))) [L56] var_1_1 = var_1_20 [L58] COND FALSE !(\read(var_1_18)) [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return ((((((var_1_13 != ((((var_1_13) > ((var_1_4 - var_1_5))) ? (var_1_13) : ((var_1_4 - var_1_5))))) ? (var_1_18 ? (var_1_1 == ((signed short int) var_1_20)) : 1) : (var_1_1 == ((signed short int) var_1_20))) && (((- (var_1_5 / var_1_9)) != last_1_var_1_8) ? ((var_1_4 != (- var_1_9)) ? (var_1_8 == ((double) ((var_1_10 + var_1_11) - var_1_12))) : 1) : (var_1_8 == ((double) var_1_12)))) && (var_1_13 == ((float) (128.75f + var_1_14)))) && (var_1_18 ? (var_1_15 == ((unsigned short int) (var_1_20 + var_1_20))) : 1)) && (var_1_18 == ((unsigned char) var_1_19))) && (var_1_20 == ((unsigned char) var_1_21)) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=127/4, var_1_15=5, var_1_18=-256, var_1_19=-256, var_1_1=64, var_1_20=64, var_1_21=64, var_1_8=127/4] [L19] reach_error() VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=127/4, var_1_15=5, var_1_18=-256, var_1_19=-256, var_1_1=64, var_1_20=64, var_1_21=64, var_1_8=127/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 12, 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=30occurred 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, 49 NumberOfCodeBlocks, 49 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 [2024-11-14 05:36:17,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E --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 8a6163d47f45212f7977b0ec00cda47715422109bdfe89125f498dea9ca08aac --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:36:20,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:36:20,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:36:20,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:36:20,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:36:20,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:36:20,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:36:20,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:36:20,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:36:20,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:36:20,403 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:36:20,403 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:36:20,404 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:36:20,404 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:36:20,404 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:36:20,404 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:36:20,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:36:20,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:36:20,405 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:36:20,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:36:20,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:36:20,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:36:20,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:36:20,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:36:20,406 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:36:20,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:36:20,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:36:20,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:36:20,406 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:36:20,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:36:20,407 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:36:20,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:36:20,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:36:20,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:36:20,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:36:20,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:20,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:36:20,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:36:20,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:36:20,408 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:36:20,408 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:36:20,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:36:20,408 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:36:20,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E 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 -> 8a6163d47f45212f7977b0ec00cda47715422109bdfe89125f498dea9ca08aac [2024-11-14 05:36:20,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:36:20,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:36:20,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:36:20,864 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:36:20,864 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:36:20,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i Unable to find full path for "g++" [2024-11-14 05:36:23,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:36:23,382 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:36:23,383 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i [2024-11-14 05:36:23,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data/92e680fde/a59c82b6f0404d368c2ada3c81471823/FLAG17c5d5f36 [2024-11-14 05:36:23,654 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/data/92e680fde/a59c82b6f0404d368c2ada3c81471823 [2024-11-14 05:36:23,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:36:23,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:36:23,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:23,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:36:23,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:36:23,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6de8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23, skipping insertion in model container [2024-11-14 05:36:23,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:36:23,818 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_9938a78c-c370-42b0-9d19-eb55b05094d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i[915,928] [2024-11-14 05:36:23,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:23,876 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:36:23,886 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_9938a78c-c370-42b0-9d19-eb55b05094d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-43.i[915,928] [2024-11-14 05:36:23,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:23,928 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:36:23,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23 WrapperNode [2024-11-14 05:36:23,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:23,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:23,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:36:23,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:36:23,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,968 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-11-14 05:36:23,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:23,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:36:23,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:36:23,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:36:23,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,994 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:23,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:24,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:36:24,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:36:24,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:36:24,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:36:24,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (1/1) ... [2024-11-14 05:36:24,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:24,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:36:24,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:36:24,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:36:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:36:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:36:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:36:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:36:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:36:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:36:24,154 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:36:24,155 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:36:32,768 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 05:36:32,768 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:36:32,781 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:36:32,781 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:36:32,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:32 BoogieIcfgContainer [2024-11-14 05:36:32,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:36:32,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:36:32,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:36:32,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:36:32,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:36:23" (1/3) ... [2024-11-14 05:36:32,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b99cb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:32, skipping insertion in model container [2024-11-14 05:36:32,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:23" (2/3) ... [2024-11-14 05:36:32,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b99cb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:32, skipping insertion in model container [2024-11-14 05:36:32,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:32" (3/3) ... [2024-11-14 05:36:32,797 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-43.i [2024-11-14 05:36:32,815 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:36:32,817 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-43.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:36:32,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:36:32,923 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;@7634b614, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:36:32,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:36:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:36:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 05:36:32,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:32,941 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:32,942 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:32,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:32,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1067122878, now seen corresponding path program 1 times [2024-11-14 05:36:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:36:32,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016345680] [2024-11-14 05:36:32,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:32,967 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 [2024-11-14 05:36:32,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:36:32,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:36:32,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:36:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:34,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:36:34,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-14 05:36:34,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:36:34,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:36:34,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016345680] [2024-11-14 05:36:34,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016345680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:36:34,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:36:34,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:36:34,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447064552] [2024-11-14 05:36:34,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:36:34,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:36:34,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:36:34,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:36:34,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:36:34,313 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:36:34,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:34,347 INFO L93 Difference]: Finished difference Result 85 states and 136 transitions. [2024-11-14 05:36:34,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:36:34,349 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2024-11-14 05:36:34,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:34,356 INFO L225 Difference]: With dead ends: 85 [2024-11-14 05:36:34,356 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:36:34,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:36:34,362 INFO L432 NwaCegarLoop]: 58 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, 58 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 [2024-11-14 05:36:34,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:36:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:36:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-14 05:36:34,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:36:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-11-14 05:36:34,399 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 82 [2024-11-14 05:36:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:34,399 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-14 05:36:34,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:36:34,400 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-14 05:36:34,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 05:36:34,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:34,403 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:34,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:36:34,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:36:34,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:34,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash 691383422, now seen corresponding path program 1 times [2024-11-14 05:36:34,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:36:34,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637770221] [2024-11-14 05:36:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:34,608 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 [2024-11-14 05:36:34,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:36:34,610 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:36:34,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 05:36:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:36,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:36:36,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-14 05:36:37,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:36:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-14 05:36:38,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:36:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637770221] [2024-11-14 05:36:38,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637770221] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:36:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1064457115] [2024-11-14 05:36:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:38,916 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:36:38,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:36:38,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:36:38,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 05:36:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:41,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:36:41,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-14 05:36:42,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:36:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-14 05:36:43,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1064457115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:36:43,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152693521] [2024-11-14 05:36:43,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:43,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:36:43,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:36:43,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:36:43,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:36:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:44,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:36:44,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-14 05:36:44,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:36:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-14 05:36:46,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152693521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:36:46,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:36:46,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2024-11-14 05:36:46,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110186044] [2024-11-14 05:36:46,262 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:36:46,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:36:46,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:36:46,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:36:46,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:36:46,265 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 05:36:51,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:53,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:55,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:55,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:55,032 INFO L93 Difference]: Finished difference Result 89 states and 120 transitions. [2024-11-14 05:36:55,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:36:55,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2024-11-14 05:36:55,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:55,165 INFO L225 Difference]: With dead ends: 89 [2024-11-14 05:36:55,165 INFO L226 Difference]: Without dead ends: 50 [2024-11-14 05:36:55,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 478 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-14 05:36:55,167 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:36:55,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 89 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2024-11-14 05:36:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-14 05:36:55,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2024-11-14 05:36:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:36:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2024-11-14 05:36:55,180 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 82 [2024-11-14 05:36:55,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:55,180 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2024-11-14 05:36:55,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 05:36:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2024-11-14 05:36:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 05:36:55,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:55,183 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:55,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 05:36:55,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:36:55,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:36:55,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:36:55,784 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:55,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:55,784 INFO L85 PathProgramCache]: Analyzing trace with hash 693230464, now seen corresponding path program 1 times [2024-11-14 05:36:55,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:36:55,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669975228] [2024-11-14 05:36:55,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:55,785 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 [2024-11-14 05:36:55,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:36:55,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 05:36:55,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9938a78c-c370-42b0-9d19-eb55b05094d6/bin/utaipan-verify-sOmjnqqW8E/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 (6)] Waiting until timeout for monitored process [2024-11-14 05:36:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:57,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:36:57,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:37:30,955 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-14 05:37:33,074 WARN L873 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-11-14 05:38:12,363 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-14 05:38:14,474 WARN L873 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-11-14 05:39:12,796 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (let ((.cse0 (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0))) (or (fp.eq c_~var_1_13~0 .cse0) (fp.gt c_~var_1_13~0 .cse0))) (= c_~var_1_1~0 ((_ zero_extend 8) c_~var_1_20~0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-14 05:39:14,920 WARN L873 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (let ((.cse0 (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0))) (or (fp.eq c_~var_1_13~0 .cse0) (fp.gt c_~var_1_13~0 .cse0))) (= c_~var_1_1~0 ((_ zero_extend 8) c_~var_1_20~0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-11-14 05:43:07,662 WARN L851 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_property_#res#1| (_ bv1 32)) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 515.0 4.0)))) (or (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.eq (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0))))) (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.gt (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0)))))))) is different from false [2024-11-14 05:43:31,218 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 515.0 4.0)))) (or (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.eq (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0))))) (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.gt (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) is different from false [2024-11-14 05:43:31,238 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 170 proven. 18 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-14 05:43:31,238 INFO L311 TraceCheckSpWp]: Computing backward predicates...