./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91 --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 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:09,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:09,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:01:09,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:09,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:09,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:09,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:09,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:09,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:09,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:09,618 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:09,619 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:09,620 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:09,621 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:01:09,622 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:09,622 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:09,623 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:01:09,623 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:01:09,623 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:09,624 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:01:09,624 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:01:09,625 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:01:09,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:09,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:09,627 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:01:09,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:01:09,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:01:09,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:09,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:09,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:09,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:09,630 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:01:09,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:09,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:09,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:09,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:09,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:09,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:09,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:09,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:09,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:09,636 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:01:09,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:01:09,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:09,637 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:09,637 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:09,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:09,638 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2023-11-25 00:01:09,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:09,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:09,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:09,966 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:09,966 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:09,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2023-11-25 00:01:13,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:13,511 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:13,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2023-11-25 00:01:13,529 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data/978253b12/aae52e6b0ddb4e20936e1223501071cf/FLAG586d59327 [2023-11-25 00:01:13,549 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data/978253b12/aae52e6b0ddb4e20936e1223501071cf [2023-11-25 00:01:13,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:13,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:13,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:13,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:13,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:13,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:13" (1/1) ... [2023-11-25 00:01:13,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@684ab581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:13, skipping insertion in model container [2023-11-25 00:01:13,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:13" (1/1) ... [2023-11-25 00:01:13,648 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:14,288 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2023-11-25 00:01:14,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:14,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:14,352 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2023-11-25 00:01:14,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:14,549 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:14,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14 WrapperNode [2023-11-25 00:01:14,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:14,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:14,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:14,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:14,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,617 INFO L138 Inliner]: procedures = 446, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2023-11-25 00:01:14,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:14,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:14,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:14,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:14,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:14,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:14,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:14,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:14,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (1/1) ... [2023-11-25 00:01:14,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:14,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:14,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:14,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:01:14,815 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:14,817 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:14,921 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:14,989 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:14,989 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:01:14,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:14 BoogieIcfgContainer [2023-11-25 00:01:14,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:14,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:14,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:14,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:14,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:13" (1/3) ... [2023-11-25 00:01:14,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517314b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:14, skipping insertion in model container [2023-11-25 00:01:14,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:14" (2/3) ... [2023-11-25 00:01:14,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517314b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:14, skipping insertion in model container [2023-11-25 00:01:14,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:14" (3/3) ... [2023-11-25 00:01:15,000 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2023-11-25 00:01:15,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:15,018 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:01:15,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:15,066 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@3d5d3cd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:15,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:01:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-25 00:01:15,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:15,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-25 00:01:15,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:15,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 91551, now seen corresponding path program 1 times [2023-11-25 00:01:15,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:15,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549957441] [2023-11-25 00:01:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:15,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:15,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:01:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:15,224 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:01:15,226 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:01:15,227 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:01:15,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:01:15,234 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:01:15,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:01:15,249 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite94 could not be translated [2023-11-25 00:01:15,252 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-25 00:01:15,256 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short95 could not be translated [2023-11-25 00:01:15,256 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite93 could not be translated [2023-11-25 00:01:15,256 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet85 could not be translated [2023-11-25 00:01:15,257 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet90 could not be translated [2023-11-25 00:01:15,257 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite88 could not be translated [2023-11-25 00:01:15,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:01:15 BoogieIcfgContainer [2023-11-25 00:01:15,264 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:01:15,265 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:01:15,265 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:01:15,265 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:01:15,266 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:14" (3/4) ... [2023-11-25 00:01:15,268 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:01:15,269 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:01:15,270 INFO L158 Benchmark]: Toolchain (without parser) took 1712.87ms. Allocated memory is still 163.6MB. Free memory was 133.3MB in the beginning and 101.9MB in the end (delta: 31.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-25 00:01:15,271 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory was 58.6MB in the beginning and 58.5MB in the end (delta: 125.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:15,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1003.54ms. Allocated memory is still 163.6MB. Free memory was 132.9MB in the beginning and 134.6MB in the end (delta: -1.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-25 00:01:15,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.66ms. Allocated memory is still 163.6MB. Free memory was 134.6MB in the beginning and 132.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:15,273 INFO L158 Benchmark]: Boogie Preprocessor took 21.39ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 131.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:15,273 INFO L158 Benchmark]: RCFGBuilder took 351.07ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 117.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-25 00:01:15,274 INFO L158 Benchmark]: TraceAbstraction took 270.96ms. Allocated memory is still 163.6MB. Free memory was 117.5MB in the beginning and 101.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-25 00:01:15,274 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 163.6MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:15,278 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory was 58.6MB in the beginning and 58.5MB in the end (delta: 125.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1003.54ms. Allocated memory is still 163.6MB. Free memory was 132.9MB in the beginning and 134.6MB in the end (delta: -1.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.66ms. Allocated memory is still 163.6MB. Free memory was 134.6MB in the beginning and 132.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.39ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 131.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.07ms. Allocated memory is still 163.6MB. Free memory was 131.3MB in the beginning and 117.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 270.96ms. Allocated memory is still 163.6MB. Free memory was 117.5MB in the beginning and 101.9MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 163.6MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite94 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short95 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite93 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite88 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 969]: 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 __signbitl at line 969, overapproximation of someBinaryFLOATComparisonOperation at line 969, overapproximation of __signbit at line 969, overapproximation of __signbitf at line 969, overapproximation of to_real at line 965, overapproximation of someBinaryArithmeticFLOAToperation at line 967, overapproximation of someUnaryFLOAToperation at line 963. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; [L969] EXPR result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target)) VAL [\old(argc)=53, argc=53, argv={50:51}, g=1/680564733841876926926749214863536422912] [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() VAL [\old(argc)=53, argc=53, argv={50:51}, g=1/680564733841876926926749214863536422912] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, 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=6occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-25 00:01:15,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91 --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 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:17,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:17,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-25 00:01:17,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:17,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:17,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:17,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:17,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:17,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:17,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:17,944 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:17,944 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:17,945 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:17,946 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:17,947 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:17,947 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:17,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:17,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:17,949 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:01:17,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:01:17,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:17,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:17,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:17,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:17,953 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:01:17,953 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:01:17,954 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:01:17,954 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:01:17,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:17,955 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:17,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:17,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:01:17,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:17,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:17,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:17,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:17,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:17,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:17,959 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:01:17,960 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:01:17,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:17,961 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:17,961 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:17,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:17,962 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2023-11-25 00:01:18,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:18,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:18,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:18,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:18,429 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:18,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2023-11-25 00:01:21,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:21,915 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:21,916 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2023-11-25 00:01:21,935 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data/a4936dede/abdba45a93b14adba87838c21d41a39b/FLAG675e78b7d [2023-11-25 00:01:21,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/data/a4936dede/abdba45a93b14adba87838c21d41a39b [2023-11-25 00:01:21,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:21,954 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:21,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:21,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:21,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:21,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:21" (1/1) ... [2023-11-25 00:01:21,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf58035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:21, skipping insertion in model container [2023-11-25 00:01:21,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:21" (1/1) ... [2023-11-25 00:01:22,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:22,599 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2023-11-25 00:01:22,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:22,617 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:22,675 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2023-11-25 00:01:22,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:22,872 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:22,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22 WrapperNode [2023-11-25 00:01:22,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:22,874 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:22,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:22,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:22,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:22,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:22,968 INFO L138 Inliner]: procedures = 447, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-25 00:01:22,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:22,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:22,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:22,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:22,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:22,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:22,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:22,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:22,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:23,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:23,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:23,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:23,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:23,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:23,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:23,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:23,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (1/1) ... [2023-11-25 00:01:23,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:23,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:23,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:01:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:23,240 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:23,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:23,392 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:23,418 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:23,422 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:01:23,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:23 BoogieIcfgContainer [2023-11-25 00:01:23,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:23,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:23,426 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:23,429 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:23,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:21" (1/3) ... [2023-11-25 00:01:23,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0c7383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:23, skipping insertion in model container [2023-11-25 00:01:23,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:22" (2/3) ... [2023-11-25 00:01:23,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0c7383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:23, skipping insertion in model container [2023-11-25 00:01:23,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:23" (3/3) ... [2023-11-25 00:01:23,432 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2023-11-25 00:01:23,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:23,452 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:01:23,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:23,505 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@6288186b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:23,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:01:23,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:01:23,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-25 00:01:23,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:23,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-25 00:01:23,517 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:23,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash 44367, now seen corresponding path program 1 times [2023-11-25 00:01:23,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:23,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358636981] [2023-11-25 00:01:23,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:23,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:23,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:23,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:01:23,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-25 00:01:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:23,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:01:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:23,757 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-25 00:01:23,759 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:01:23,760 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:01:23,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:23,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:23,967 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:01:23,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:01:23,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:01:23 BoogieIcfgContainer [2023-11-25 00:01:23,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:01:23,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:01:23,997 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:01:23,997 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:01:23,998 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:23" (3/4) ... [2023-11-25 00:01:24,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:01:24,003 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:01:24,004 INFO L158 Benchmark]: Toolchain (without parser) took 2049.75ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 46.6MB in the end (delta: 23.5MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2023-11-25 00:01:24,005 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:24,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 917.67ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 43.9MB in the end (delta: 26.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-11-25 00:01:24,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.61ms. Allocated memory is still 94.4MB. Free memory was 43.9MB in the beginning and 71.8MB in the end (delta: -27.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-25 00:01:24,012 INFO L158 Benchmark]: Boogie Preprocessor took 47.20ms. Allocated memory is still 94.4MB. Free memory was 71.6MB in the beginning and 70.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:24,014 INFO L158 Benchmark]: RCFGBuilder took 405.06ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 59.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:01:24,015 INFO L158 Benchmark]: TraceAbstraction took 567.47ms. Allocated memory is still 94.4MB. Free memory was 59.2MB in the beginning and 47.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-25 00:01:24,015 INFO L158 Benchmark]: Witness Printer took 7.64ms. Allocated memory is still 94.4MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:24,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 917.67ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 43.9MB in the end (delta: 26.0MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.61ms. Allocated memory is still 94.4MB. Free memory was 43.9MB in the beginning and 71.8MB in the end (delta: -27.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.20ms. Allocated memory is still 94.4MB. Free memory was 71.6MB in the beginning and 70.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.06ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 59.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 567.47ms. Allocated memory is still 94.4MB. Free memory was 59.2MB in the beginning and 47.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 7.64ms. Allocated memory is still 94.4MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 969]: 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 __signbitl at line 969. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; VAL [\old(argc)=5, argc=5, argv={7:6}, f=-0.0000000000000000000000000000000000000014693679385278594, g=0.0000000000000000000000000000000000000014693679385278594, result=0.0, target=0.0] [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() VAL [\old(argc)=5, argc=5, argv={7:6}, f=-0.0000000000000000000000000000000000000014693679385278594, g=0.0000000000000000000000000000000000000014693679385278594, result=0.0, target=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, 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=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-25 00:01:24,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa7dbc38-cd51-459d-91ea-ebee38d723ca/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample