./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:57:13,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:57:13,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:57:13,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:57:13,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:57:13,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:57:13,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:57:13,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:57:13,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:57:13,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:57:13,869 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:57:13,870 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:57:13,870 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:57:13,870 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:57:13,870 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:57:13,870 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:57:13,870 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:57:13,871 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:57:13,871 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:57:13,871 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:57:13,871 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:57:13,871 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:57:13,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:57:13,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:57:13,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:57:13,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:57:13,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:57:13,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:57:13,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:57:13,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:57:13,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:57:13,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:57:13,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:57:13,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:57:13,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:57:13,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:57:13,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:57:13,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:57:13,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:57:13,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:57:13,876 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 [2024-11-14 04:57:14,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:57:14,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:57:14,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:57:14,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:57:14,215 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:57:14,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i Unable to find full path for "g++" [2024-11-14 04:57:16,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:57:16,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:57:16,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-14 04:57:16,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data/c59dd7621/c2a01ad8fbbb4d05bb13f62a2296fabf/FLAGf54d13fc4 [2024-11-14 04:57:16,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data/c59dd7621/c2a01ad8fbbb4d05bb13f62a2296fabf [2024-11-14 04:57:16,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:57:16,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:57:16,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:57:16,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:57:16,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:57:16,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:57:16" (1/1) ... [2024-11-14 04:57:16,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75be9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:16, skipping insertion in model container [2024-11-14 04:57:16,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:57:16" (1/1) ... [2024-11-14 04:57:16,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:57:17,052 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-14 04:57:17,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:57:17,159 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:57:17,170 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-14 04:57:17,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:57:17,221 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:57:17,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17 WrapperNode [2024-11-14 04:57:17,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:57:17,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:57:17,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:57:17,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:57:17,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,316 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2024-11-14 04:57:17,318 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:57:17,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:57:17,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:57:17,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:57:17,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:57:17,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:57:17,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:57:17,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:57:17,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (1/1) ... [2024-11-14 04:57:17,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:57:17,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:17,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:57:17,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:57:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:57:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:57:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:57:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:57:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:57:17,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:57:17,560 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:57:17,562 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:57:17,970 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-14 04:57:17,970 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:57:18,337 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:57:18,337 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:57:18,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:18 BoogieIcfgContainer [2024-11-14 04:57:18,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:57:18,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:57:18,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:57:18,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:57:18,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:57:16" (1/3) ... [2024-11-14 04:57:18,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b7cbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:57:18, skipping insertion in model container [2024-11-14 04:57:18,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:17" (2/3) ... [2024-11-14 04:57:18,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b7cbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:57:18, skipping insertion in model container [2024-11-14 04:57:18,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:18" (3/3) ... [2024-11-14 04:57:18,353 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-14 04:57:18,379 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:57:18,383 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-18.i that has 2 procedures, 28 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:57:18,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:57:18,509 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;@7e6cb2dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:57:18,510 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:57:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:57:18,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 04:57:18,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:18,528 INFO L215 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:57:18,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:57:18,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:18,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2085613483, now seen corresponding path program 1 times [2024-11-14 04:57:18,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:18,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119871449] [2024-11-14 04:57:18,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:18,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:57:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072520409] [2024-11-14 04:57:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:19,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:19,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:19,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:19,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:57:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:57:19,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:57:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:57:19,492 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:57:19,494 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:57:19,496 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:57:19,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:57:19,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 04:57:19,704 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:57:19,777 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:57:19,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:57:19 BoogieIcfgContainer [2024-11-14 04:57:19,787 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:57:19,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:57:19,789 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:57:19,790 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:57:19,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:18" (3/4) ... [2024-11-14 04:57:19,794 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:57:19,795 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:57:19,797 INFO L158 Benchmark]: Toolchain (without parser) took 2976.43ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 70.5MB in the end (delta: 47.6MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-11-14 04:57:19,801 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:57:19,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.62ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 105.3MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:57:19,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.52ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 102.3MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:57:19,803 INFO L158 Benchmark]: Boogie Preprocessor took 65.92ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 100.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:57:19,803 INFO L158 Benchmark]: RCFGBuilder took 950.72ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 48.0MB in the end (delta: 52.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-14 04:57:19,804 INFO L158 Benchmark]: TraceAbstraction took 1445.34ms. Allocated memory is still 142.6MB. Free memory was 47.3MB in the beginning and 70.5MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:57:19,806 INFO L158 Benchmark]: Witness Printer took 7.29ms. Allocated memory is still 142.6MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:57:19,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.62ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 105.3MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.52ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 102.3MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.92ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 100.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 950.72ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 48.0MB in the end (delta: 52.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1445.34ms. Allocated memory is still 142.6MB. Free memory was 47.3MB in the beginning and 70.5MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.29ms. Allocated memory is still 142.6MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of bitwiseOr at line 54, overapproximation of bitwiseAnd at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_7 = 18477; [L24] signed short int var_1_8 = 5; [L25] float var_1_9 = 5.8; [L26] float var_1_10 = 0.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 50; [L29] unsigned char var_1_13 = 1; [L30] unsigned long int var_1_14 = 256; [L31] unsigned char var_1_15 = 0; [L32] unsigned char last_1_var_1_11 = 16; [L33] unsigned long int last_1_var_1_14 = 256; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L85] last_1_var_1_11 = var_1_11 [L86] last_1_var_1_14 = var_1_14 [L96] RET updateLastVariables() [L97] CALL updateVariables() [L64] var_1_7 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L66] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L67] var_1_8 = __VERIFIER_nondet_short() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L69] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L70] var_1_9 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L72] var_1_10 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L76] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L77] var_1_13 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L79] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L80] var_1_15 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L82] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=1, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=1, var_1_1=397/4, var_1_7=16383, var_1_8=256] [L97] RET updateVariables() [L98] CALL step() [L37] signed short int stepLocal_3 = var_1_8; [L38] unsigned long int stepLocal_2 = last_1_var_1_14; [L39] COND FALSE !(last_1_var_1_14 > stepLocal_3) [L46] EXPR var_1_11 & var_1_7 [L46] COND TRUE (var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11)) [L47] COND FALSE !(var_1_15 && (var_1_9 > var_1_10)) [L53] unsigned char stepLocal_1 = var_1_11; [L54] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) [L54] unsigned long int stepLocal_0 = var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))); [L55] COND FALSE !(stepLocal_0 != var_1_11) [L60] var_1_1 = 10.5f [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) [L89] EXPR ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) [L89-L90] return ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=1, var_1_1=21/2, var_1_7=16383, var_1_8=256, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=0, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=1, var_1_1=21/2, var_1_7=16383, var_1_8=256, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 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 [2024-11-14 04:57:19,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:57:22,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:57:23,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:57:23,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:57:23,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:57:23,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:57:23,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:57:23,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:57:23,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:57:23,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:57:23,143 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:57:23,143 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:57:23,143 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:57:23,143 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:57:23,144 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:57:23,144 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:57:23,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:57:23,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:57:23,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:57:23,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:57:23,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:57:23,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:57:23,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:57:23,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:57:23,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:57:23,148 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:57:23,148 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:57:23,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:57:23,149 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:57:23,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 [2024-11-14 04:57:23,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:57:23,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:57:23,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:57:23,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:57:23,549 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:57:23,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i Unable to find full path for "g++" [2024-11-14 04:57:25,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:57:25,899 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:57:25,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-14 04:57:25,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data/2957da3e3/50f5a91d15574d23b21a85fc8ce7db12/FLAG33c42d08c [2024-11-14 04:57:26,223 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/data/2957da3e3/50f5a91d15574d23b21a85fc8ce7db12 [2024-11-14 04:57:26,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:57:26,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:57:26,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:57:26,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:57:26,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:57:26,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11166fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26, skipping insertion in model container [2024-11-14 04:57:26,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:57:26,435 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-14 04:57:26,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:57:26,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:57:26,533 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2024-11-14 04:57:26,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:57:26,592 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:57:26,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26 WrapperNode [2024-11-14 04:57:26,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:57:26,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:57:26,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:57:26,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:57:26,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,654 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-14 04:57:26,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:57:26,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:57:26,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:57:26,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:57:26,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:57:26,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:57:26,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:57:26,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:57:26,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (1/1) ... [2024-11-14 04:57:26,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:57:26,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:26,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:57:26,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:57:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:57:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:57:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:57:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:57:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:57:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:57:26,856 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:57:26,858 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:57:27,153 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-14 04:57:27,154 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:57:27,163 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:57:27,164 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:57:27,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:27 BoogieIcfgContainer [2024-11-14 04:57:27,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:57:27,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:57:27,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:57:27,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:57:27,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:57:26" (1/3) ... [2024-11-14 04:57:27,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c163d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:57:27, skipping insertion in model container [2024-11-14 04:57:27,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:26" (2/3) ... [2024-11-14 04:57:27,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c163d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:57:27, skipping insertion in model container [2024-11-14 04:57:27,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:27" (3/3) ... [2024-11-14 04:57:27,175 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-18.i [2024-11-14 04:57:27,190 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:57:27,192 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-18.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:57:27,260 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:57:27,277 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;@26f08107, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:57:27,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:57:27,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:57:27,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 04:57:27,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:27,295 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:57:27,296 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:57:27,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:27,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1040370918, now seen corresponding path program 1 times [2024-11-14 04:57:27,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:57:27,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63504808] [2024-11-14 04:57:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:27,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:57:27,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:57:27,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:57:27,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 04:57:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:27,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:57:27,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-14 04:57:27,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:57:27,628 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:57:27,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63504808] [2024-11-14 04:57:27,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63504808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:57:27,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:57:27,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:57:27,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314859158] [2024-11-14 04:57:27,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:57:27,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:57:27,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:57:27,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:57:27,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:57:27,657 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 04:57:27,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:27,678 INFO L93 Difference]: Finished difference Result 83 states and 136 transitions. [2024-11-14 04:57:27,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:57:27,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2024-11-14 04:57:27,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:27,686 INFO L225 Difference]: With dead ends: 83 [2024-11-14 04:57:27,686 INFO L226 Difference]: Without dead ends: 41 [2024-11-14 04:57:27,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:57:27,692 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:27,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:57:27,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-14 04:57:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-14 04:57:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:57:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2024-11-14 04:57:27,730 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 80 [2024-11-14 04:57:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:27,730 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2024-11-14 04:57:27,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 04:57:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2024-11-14 04:57:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 04:57:27,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:27,734 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:57:27,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 04:57:27,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:57:27,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:57:27,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:27,935 INFO L85 PathProgramCache]: Analyzing trace with hash -336893346, now seen corresponding path program 1 times [2024-11-14 04:57:27,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:57:27,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417149388] [2024-11-14 04:57:27,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:27,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:57:27,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:57:27,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:57:27,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 04:57:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:28,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:57:28,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 04:57:29,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-14 04:57:29,978 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:57:29,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417149388] [2024-11-14 04:57:29,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417149388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:29,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [452879300] [2024-11-14 04:57:29,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:29,979 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:57:29,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:57:29,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:57:29,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:57:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:30,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:57:30,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:34,356 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-14 04:57:34,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:57:34,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [452879300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:57:34,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:57:34,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7] total 14 [2024-11-14 04:57:34,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416254662] [2024-11-14 04:57:34,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:57:34,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:57:34,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:57:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:57:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=116, Unknown=1, NotChecked=0, Total=182 [2024-11-14 04:57:34,362 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-14 04:57:36,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:38,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:41,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:43,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:45,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:47,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:49,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:51,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:53,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:55,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:57,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:57:59,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:58:01,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:58:03,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:58:05,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:58:07,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:58:09,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:58:12,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 04:58:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:58:12,407 INFO L93 Difference]: Finished difference Result 117 states and 168 transitions. [2024-11-14 04:58:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:58:12,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 80 [2024-11-14 04:58:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:58:12,410 INFO L225 Difference]: With dead ends: 117 [2024-11-14 04:58:12,410 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 04:58:12,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=65, Invalid=116, Unknown=1, NotChecked=0, Total=182 [2024-11-14 04:58:12,412 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 13 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:58:12,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 121 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 38.0s Time] [2024-11-14 04:58:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 04:58:12,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-11-14 04:58:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 04:58:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 109 transitions. [2024-11-14 04:58:12,435 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 109 transitions. Word has length 80 [2024-11-14 04:58:12,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:58:12,435 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 109 transitions. [2024-11-14 04:58:12,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-14 04:58:12,436 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 109 transitions. [2024-11-14 04:58:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 04:58:12,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:58:12,438 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:58:12,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 04:58:12,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 04:58:12,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:58:12,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:58:12,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:58:12,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1933867454, now seen corresponding path program 1 times [2024-11-14 04:58:12,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:58:12,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804189003] [2024-11-14 04:58:12,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:12,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:58:12,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:58:12,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:58:12,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 04:58:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:12,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:58:13,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:58:13,306 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 04:58:13,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:13,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:58:13,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804189003] [2024-11-14 04:58:13,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804189003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:58:13,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1233230205] [2024-11-14 04:58:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:13,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:58:13,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:58:13,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:58:13,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-14 04:58:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:13,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:58:13,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:58:14,186 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 04:58:14,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:14,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1233230205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:58:14,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683241518] [2024-11-14 04:58:14,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:14,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:58:14,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:58:14,291 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:58:14,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:58:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:14,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:58:14,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:58:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 04:58:14,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:14,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683241518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:58:14,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:58:14,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2024-11-14 04:58:14,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504444243] [2024-11-14 04:58:14,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:58:14,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:58:14,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:58:14,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:58:14,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:58:14,678 INFO L87 Difference]: Start difference. First operand 76 states and 109 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 04:58:15,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:58:15,726 INFO L93 Difference]: Finished difference Result 246 states and 341 transitions. [2024-11-14 04:58:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:58:15,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 81 [2024-11-14 04:58:15,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:58:15,729 INFO L225 Difference]: With dead ends: 246 [2024-11-14 04:58:15,729 INFO L226 Difference]: Without dead ends: 173 [2024-11-14 04:58:15,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:58:15,731 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 57 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:58:15,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 223 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:58:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-14 04:58:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 124. [2024-11-14 04:58:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 81 states have internal predecessors, (96), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:58:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 168 transitions. [2024-11-14 04:58:15,760 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 168 transitions. Word has length 81 [2024-11-14 04:58:15,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:58:15,760 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 168 transitions. [2024-11-14 04:58:15,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 04:58:15,760 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 168 transitions. [2024-11-14 04:58:15,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 04:58:15,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:58:15,762 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:58:15,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 04:58:15,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-14 04:58:16,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:58:16,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:58:16,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:58:16,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:58:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2087472395, now seen corresponding path program 1 times [2024-11-14 04:58:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:58:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137425226] [2024-11-14 04:58:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:16,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:58:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:58:16,371 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:58:16,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4086570-f46a-4a38-883e-5351a334f814/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-14 04:58:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:16,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 04:58:16,529 INFO L278 TraceCheckSpWp]: Computing forward predicates...