./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2 --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 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:30:22,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:30:22,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:30:22,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:30:22,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:30:22,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:30:22,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:30:22,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:30:22,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:30:22,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:30:22,236 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:30:22,237 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:30:22,237 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:30:22,239 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:30:22,242 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:30:22,242 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:30:22,243 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:30:22,243 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:30:22,243 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:30:22,244 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:30:22,244 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:30:22,244 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:30:22,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:30:22,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:30:22,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:30:22,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:30:22,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:30:22,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:30:22,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:30:22,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:30:22,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:30:22,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:30:22,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:30:22,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:30:22,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:30:22,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:30:22,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:30:22,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:30:22,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:22,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:30:22,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:30:22,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:30:22,260 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:30:22,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:30:22,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:30:22,261 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:30:22,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:30:22,262 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_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 [2024-11-02 12:30:22,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:30:22,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:30:22,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:30:22,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:30:22,613 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:30:22,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i Unable to find full path for "g++" [2024-11-02 12:30:24,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:30:25,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:30:25,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i [2024-11-02 12:30:25,055 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data/7d405fae7/5715ce34b1a641b9950bf49828197e1c/FLAG36bf2b723 [2024-11-02 12:30:25,081 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data/7d405fae7/5715ce34b1a641b9950bf49828197e1c [2024-11-02 12:30:25,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:30:25,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:30:25,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:25,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:30:25,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:30:25,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee1b859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25, skipping insertion in model container [2024-11-02 12:30:25,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:30:25,394 WARN L251 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_79a98d62-2370-49f0-a2e2-71a46ddcac99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2024-11-02 12:30:25,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:25,458 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:30:25,469 WARN L251 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_79a98d62-2370-49f0-a2e2-71a46ddcac99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2024-11-02 12:30:25,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:25,547 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:30:25,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25 WrapperNode [2024-11-02 12:30:25,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:25,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:25,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:30:25,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:30:25,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,643 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2024-11-02 12:30:25,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:25,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:30:25,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:30:25,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:30:25,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:30:25,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:30:25,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:30:25,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:30:25,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (1/1) ... [2024-11-02 12:30:25,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:25,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:30:25,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:30:25,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:30:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:30:25,784 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:30:25,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:30:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:30:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:30:25,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:30:25,885 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:30:25,887 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:30:26,299 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-02 12:30:26,299 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:30:26,426 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:30:26,427 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:30:26,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:26 BoogieIcfgContainer [2024-11-02 12:30:26,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:30:26,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:30:26,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:30:26,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:30:26,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:30:25" (1/3) ... [2024-11-02 12:30:26,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4825bca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:26, skipping insertion in model container [2024-11-02 12:30:26,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:25" (2/3) ... [2024-11-02 12:30:26,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4825bca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:26, skipping insertion in model container [2024-11-02 12:30:26,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:26" (3/3) ... [2024-11-02 12:30:26,444 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-26.i [2024-11-02 12:30:26,469 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:30:26,469 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:30:26,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:30:26,566 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;@6ffea594, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:30:26,566 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:30:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-02 12:30:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-02 12:30:26,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:30:26,583 INFO L215 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:30:26,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:30:26,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:30:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2105956339, now seen corresponding path program 1 times [2024-11-02 12:30:26,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:30:26,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510598269] [2024-11-02 12:30:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:26,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:30:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:30:27,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343209307] [2024-11-02 12:30:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:27,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:30:27,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:30:27,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:30:27,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:30:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:30:27,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:30:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:30:27,438 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:30:27,443 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:30:27,444 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:30:27,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 12:30:27,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:30:27,652 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:30:27,700 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:30:27,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:30:27 BoogieIcfgContainer [2024-11-02 12:30:27,705 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:30:27,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:30:27,706 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:30:27,706 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:30:27,707 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:26" (3/4) ... [2024-11-02 12:30:27,711 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:30:27,712 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:30:27,714 INFO L158 Benchmark]: Toolchain (without parser) took 2626.57ms. Allocated memory is still 153.1MB. Free memory was 99.4MB in the beginning and 105.7MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:30:27,714 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:30:27,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.46ms. Allocated memory is still 153.1MB. Free memory was 99.0MB in the beginning and 122.6MB in the end (delta: -23.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-02 12:30:27,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.78ms. Allocated memory is still 153.1MB. Free memory was 122.6MB in the beginning and 118.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:30:27,716 INFO L158 Benchmark]: Boogie Preprocessor took 42.59ms. Allocated memory is still 153.1MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:30:27,717 INFO L158 Benchmark]: RCFGBuilder took 740.36ms. Allocated memory is still 153.1MB. Free memory was 116.5MB in the beginning and 90.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-02 12:30:27,718 INFO L158 Benchmark]: TraceAbstraction took 1274.25ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 105.7MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:30:27,718 INFO L158 Benchmark]: Witness Printer took 6.96ms. Allocated memory is still 153.1MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:30:27,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.46ms. Allocated memory is still 153.1MB. Free memory was 99.0MB in the beginning and 122.6MB in the end (delta: -23.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.78ms. Allocated memory is still 153.1MB. Free memory was 122.6MB in the beginning and 118.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.59ms. Allocated memory is still 153.1MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 740.36ms. Allocated memory is still 153.1MB. Free memory was 116.5MB in the beginning and 90.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1274.25ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 105.7MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.96ms. Allocated memory is still 153.1MB. Free memory is still 105.7MB. 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 to_int at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -1; [L23] signed short int var_1_4 = 1; [L24] signed long int var_1_12 = 1; [L25] signed long int var_1_13 = 199; [L26] signed long int var_1_14 = 2000000000; [L27] unsigned char var_1_15 = 64; [L28] unsigned char var_1_16 = 2; [L29] unsigned long int var_1_17 = 50; [L30] signed long int var_1_19 = -32; [L31] signed long int var_1_20 = 8; [L32] unsigned char last_1_var_1_15 = 64; [L77] isInitial = 1 [L78] FCALL initially() [L79] COND TRUE 1 [L80] CALL updateLastVariables() [L70] last_1_var_1_15 = var_1_15 [L80] RET updateLastVariables() [L81] CALL updateVariables() [L52] var_1_4 = __VERIFIER_nondet_short() [L53] CALL assume_abort_if_not(var_1_4 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not(var_1_4 >= -32767) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L54] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L55] var_1_13 = __VERIFIER_nondet_long() [L56] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L57] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L58] var_1_14 = __VERIFIER_nondet_long() [L59] CALL assume_abort_if_not(var_1_14 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(var_1_14 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L60] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L61] var_1_16 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L63] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=1] [L64] var_1_19 = __VERIFIER_nondet_long() [L65] CALL assume_abort_if_not(var_1_19 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_19 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=1] [L66] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=1] [L67] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=1] [L81] RET updateVariables() [L82] CALL step() [L36] var_1_12 = ((0.85f - var_1_13) + var_1_14) [L37] COND FALSE !((- last_1_var_1_15) >= (var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4))))) [L40] var_1_20 = var_1_13 [L41] COND FALSE !(var_1_20 > var_1_20) [L44] var_1_1 = (((((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) < ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15)))))) ? ((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15))))))) [L46] signed long int stepLocal_0 = var_1_15 + (var_1_15 + var_1_1); [L47] COND TRUE stepLocal_0 != (var_1_15 * (var_1_1 / var_1_19)) [L48] var_1_17 = (((((10u) < ((var_1_1 + var_1_15))) ? (10u) : ((var_1_1 + var_1_15)))) + var_1_15) [L82] RET step() [L83] CALL, EXPR property() [L73-L74] return (((((var_1_20 > var_1_20) ? (var_1_1 == ((signed short int) ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : (var_1_1 == ((signed short int) (((((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) < ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15)))))) ? ((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15)))))))))) && (var_1_12 == ((signed long int) ((0.85f - var_1_13) + var_1_14)))) && (((- last_1_var_1_15) >= (var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (var_1_15 == ((unsigned char) var_1_16)) : 1)) && (((var_1_15 + (var_1_15 + var_1_1)) != (var_1_15 * (var_1_1 / var_1_19))) ? (var_1_17 == ((unsigned long int) (((((10u) < ((var_1_1 + var_1_15))) ? (10u) : ((var_1_1 + var_1_15)))) + var_1_15))) : 1)) && (var_1_20 == ((signed long int) var_1_13)) ; [L83] RET, EXPR property() [L83] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=14, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=74, var_1_19=2, var_1_1=0, var_1_20=0, var_1_4=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_15=64, var_1_12=14, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=0, var_1_17=74, var_1_19=2, var_1_1=0, var_1_20=0, var_1_4=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 2 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 [2024-11-02 12:30:27,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2 --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 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:30:30,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:30:30,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:30:30,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:30:30,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:30:30,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:30:30,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:30:30,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:30:30,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:30:30,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:30:30,831 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:30:30,831 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:30:30,832 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:30:30,835 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:30:30,836 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:30:30,836 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:30:30,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:30:30,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:30:30,838 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:30:30,838 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:30:30,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:30:30,841 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:30:30,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:30:30,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:30:30,842 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:30:30,842 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:30:30,843 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:30:30,843 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:30:30,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:30:30,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:30:30,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:30:30,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:30:30,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:30:30,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:30:30,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:30:30,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:30,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:30:30,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:30:30,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:30:30,848 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:30:30,849 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:30:30,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:30:30,851 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:30:30,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:30:30,852 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_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 [2024-11-02 12:30:31,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:30:31,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:30:31,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:30:31,335 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:30:31,336 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:30:31,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i Unable to find full path for "g++" [2024-11-02 12:30:33,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:30:33,890 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:30:33,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i [2024-11-02 12:30:33,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data/5e2f94724/3822dbf02af14f56babfd5976282ad40/FLAGb76205b41 [2024-11-02 12:30:33,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/data/5e2f94724/3822dbf02af14f56babfd5976282ad40 [2024-11-02 12:30:33,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:30:33,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:30:33,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:33,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:30:33,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:30:33,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:33" (1/1) ... [2024-11-02 12:30:33,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@937c22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:33, skipping insertion in model container [2024-11-02 12:30:33,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:33" (1/1) ... [2024-11-02 12:30:33,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:30:34,211 WARN L251 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_79a98d62-2370-49f0-a2e2-71a46ddcac99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2024-11-02 12:30:34,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:34,359 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:30:34,408 WARN L251 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_79a98d62-2370-49f0-a2e2-71a46ddcac99/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2024-11-02 12:30:34,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:34,524 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:30:34,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34 WrapperNode [2024-11-02 12:30:34,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:34,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:34,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:30:34,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:30:34,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,588 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 82 [2024-11-02 12:30:34,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:34,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:30:34,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:30:34,593 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:30:34,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:30:34,649 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:30:34,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:30:34,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:30:34,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (1/1) ... [2024-11-02 12:30:34,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:34,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:30:34,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:30:34,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:30:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:30:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:30:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:30:34,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:30:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:30:34,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:30:34,823 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:30:34,827 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:30:39,247 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-02 12:30:39,247 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:30:39,265 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:30:39,265 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:30:39,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:39 BoogieIcfgContainer [2024-11-02 12:30:39,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:30:39,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:30:39,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:30:39,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:30:39,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:30:33" (1/3) ... [2024-11-02 12:30:39,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa79bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:39, skipping insertion in model container [2024-11-02 12:30:39,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:34" (2/3) ... [2024-11-02 12:30:39,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa79bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:39, skipping insertion in model container [2024-11-02 12:30:39,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:39" (3/3) ... [2024-11-02 12:30:39,279 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-26.i [2024-11-02 12:30:39,294 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:30:39,295 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:30:39,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:30:39,360 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;@55c48359, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:30:39,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:30:39,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-02 12:30:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-02 12:30:39,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:30:39,379 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:30:39,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:30:39,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:30:39,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1782570273, now seen corresponding path program 1 times [2024-11-02 12:30:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:30:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745472293] [2024-11-02 12:30:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:39,404 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 [2024-11-02 12:30:39,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:30:39,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:30:39,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:30:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:30:39,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:30:39,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:30:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-02 12:30:39,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:30:39,722 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:30:39,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745472293] [2024-11-02 12:30:39,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745472293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:30:39,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:30:39,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:30:39,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723930245] [2024-11-02 12:30:39,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:30:39,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:30:39,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:30:39,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:30:39,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:30:39,764 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-02 12:30:39,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:30:39,790 INFO L93 Difference]: Finished difference Result 73 states and 117 transitions. [2024-11-02 12:30:39,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:30:39,792 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-02 12:30:39,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:30:39,798 INFO L225 Difference]: With dead ends: 73 [2024-11-02 12:30:39,798 INFO L226 Difference]: Without dead ends: 36 [2024-11-02 12:30:39,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:30:39,804 INFO L432 NwaCegarLoop]: 48 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, 48 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 [2024-11-02 12:30:39,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:30:39,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-02 12:30:39,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-02 12:30:39,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-02 12:30:39,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2024-11-02 12:30:39,846 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 74 [2024-11-02 12:30:39,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:30:39,847 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-11-02 12:30:39,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-02 12:30:39,847 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2024-11-02 12:30:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-02 12:30:39,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:30:39,850 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:30:39,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-02 12:30:40,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:30:40,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:30:40,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:30:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 335088931, now seen corresponding path program 1 times [2024-11-02 12:30:40,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:30:40,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534532226] [2024-11-02 12:30:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:40,055 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 [2024-11-02 12:30:40,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:30:40,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:30:40,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:30:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:30:40,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:30:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:30:40,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-02 12:30:40,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1484199986] [2024-11-02 12:30:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:40,460 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 12:30:40,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 12:30:40,461 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 12:30:40,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a98d62-2370-49f0-a2e2-71a46ddcac99/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-02 12:30:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:30:40,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 12:30:41,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:30:46,638 WARN L851 $PredicateComparison]: unable to prove that (= c_~var_1_12~0 ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 17.0 20.0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_13~0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_14~0)))) is different from false [2024-11-02 12:30:48,657 WARN L873 $PredicateComparison]: unable to prove that (= c_~var_1_12~0 ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 17.0 20.0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_13~0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_14~0)))) is different from true [2024-11-02 12:31:02,893 WARN L851 $PredicateComparison]: unable to prove that (and (= c_~var_1_16~0 c_~var_1_15~0) (bvsge (bvneg ((_ zero_extend 24) c_~last_1_var_1_15~0)) (bvsdiv ((_ sign_extend 16) c_~var_1_4~0) (_ bv4 32))) (= c_~var_1_12~0 ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 17.0 20.0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_13~0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_14~0))))) is different from false [2024-11-02 12:31:04,911 WARN L873 $PredicateComparison]: unable to prove that (and (= c_~var_1_16~0 c_~var_1_15~0) (bvsge (bvneg ((_ zero_extend 24) c_~last_1_var_1_15~0)) (bvsdiv ((_ sign_extend 16) c_~var_1_4~0) (_ bv4 32))) (= c_~var_1_12~0 ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 17.0 20.0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_13~0)) ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_14~0))))) is different from true