./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.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_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:18:53,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:18:53,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:18:53,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:18:53,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:18:53,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:18:53,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:18:53,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:18:53,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:18:53,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:18:53,212 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:18:53,213 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:18:53,213 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:18:53,213 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:18:53,213 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:18:53,213 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:18:53,214 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:18:53,214 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:18:53,214 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:18:53,214 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:18:53,214 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:18:53,215 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:18:53,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:18:53,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:18:53,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:18:53,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:18:53,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:18:53,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:18:53,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:18:53,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:18:53,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:18:53,216 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:18:53,217 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:18:53,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:18:53,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:18:53,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:18:53,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:18:53,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:18:53,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:18:53,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:18:53,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:18:53,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:18:53,219 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:18:53,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:18:53,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:18:53,219 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:18:53,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:18:53,219 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_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 -> f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 [2024-11-14 04:18:53,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:18:53,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:18:53,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:18:53,621 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:18:53,621 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:18:53,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i Unable to find full path for "g++" [2024-11-14 04:18:55,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:18:56,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:18:56,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i [2024-11-14 04:18:56,220 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data/15c16f5bb/876d77c8c6d44e86a3841cb053756215/FLAG0a508ec7b [2024-11-14 04:18:56,431 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data/15c16f5bb/876d77c8c6d44e86a3841cb053756215 [2024-11-14 04:18:56,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:18:56,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:18:56,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:18:56,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:18:56,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:18:56,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b724104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56, skipping insertion in model container [2024-11-14 04:18:56,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:18:56,635 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_86cae769-026e-47a1-aa4d-33a1f257dcf3/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2024-11-14 04:18:56,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:18:56,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:18:56,707 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_86cae769-026e-47a1-aa4d-33a1f257dcf3/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2024-11-14 04:18:56,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:18:56,752 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:18:56,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56 WrapperNode [2024-11-14 04:18:56,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:18:56,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:18:56,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:18:56,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:18:56,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,815 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2024-11-14 04:18:56,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:18:56,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:18:56,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:18:56,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:18:56,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:18:56,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:18:56,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:18:56,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:18:56,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (1/1) ... [2024-11-14 04:18:56,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:18:56,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:18:56,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:18:56,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:18:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:18:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:18:56,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:18:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:18:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:18:56,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:18:57,059 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:18:57,061 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:18:57,584 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-14 04:18:57,584 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:18:57,910 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:18:57,910 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:18:57,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:18:57 BoogieIcfgContainer [2024-11-14 04:18:57,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:18:57,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:18:57,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:18:57,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:18:57,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:18:56" (1/3) ... [2024-11-14 04:18:57,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85f6ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:18:57, skipping insertion in model container [2024-11-14 04:18:57,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:56" (2/3) ... [2024-11-14 04:18:57,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85f6ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:18:57, skipping insertion in model container [2024-11-14 04:18:57,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:18:57" (3/3) ... [2024-11-14 04:18:57,927 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-19.i [2024-11-14 04:18:57,948 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:18:57,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-19.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:18:58,033 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:18:58,050 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;@4b973b94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:18:58,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:18:58,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:18:58,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 04:18:58,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:18:58,067 INFO L215 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:18:58,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:18:58,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:18:58,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1334746702, now seen corresponding path program 1 times [2024-11-14 04:18:58,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:18:58,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137186035] [2024-11-14 04:18:58,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:18:58,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:18:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:18:58,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711960275] [2024-11-14 04:18:58,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:18:58,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:18:58,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:18:58,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:18:58,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:18:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:18:58,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:18:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:18:58,941 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:18:58,944 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:18:58,946 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:18:58,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:18:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 04:18:59,153 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:18:59,234 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:18:59,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:18:59 BoogieIcfgContainer [2024-11-14 04:18:59,241 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:18:59,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:18:59,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:18:59,243 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:18:59,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:18:57" (3/4) ... [2024-11-14 04:18:59,247 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:18:59,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:18:59,250 INFO L158 Benchmark]: Toolchain (without parser) took 2814.38ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 100.4MB in the end (delta: 18.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-14 04:18:59,253 INFO L158 Benchmark]: CDTParser took 1.66ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:59,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.79ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 106.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:18:59,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.56ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 104.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:18:59,255 INFO L158 Benchmark]: Boogie Preprocessor took 29.59ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:59,255 INFO L158 Benchmark]: RCFGBuilder took 1064.56ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 70.5MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 04:18:59,256 INFO L158 Benchmark]: TraceAbstraction took 1327.08ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 101.2MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:59,256 INFO L158 Benchmark]: Witness Printer took 6.88ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 100.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:18:59,260 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.66ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.79ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 106.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.56ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 104.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.59ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1064.56ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 70.5MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1327.08ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 101.2MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.88ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 100.4MB in the end (delta: 27.0kB). 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 shiftLeft at line 57. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 8; [L23] unsigned char var_1_2 = 128; [L24] unsigned char var_1_3 = 64; [L25] unsigned long int var_1_4 = 1; [L26] unsigned long int var_1_5 = 5; [L27] signed char var_1_7 = 4; [L28] signed char var_1_8 = 100; [L29] unsigned char var_1_9 = 1; [L30] signed long int var_1_10 = -8; [L31] signed long int var_1_11 = 10; [L32] signed long int var_1_12 = -25; [L33] signed long int var_1_13 = -16; [L34] signed long int last_1_var_1_11 = 10; [L100] isInitial = 1 [L101] FCALL initially() [L102] COND TRUE 1 [L103] CALL updateLastVariables() [L93] last_1_var_1_11 = var_1_11 [L103] RET updateLastVariables() [L104] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_2 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_2 >= 127) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L69] var_1_3 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L72] var_1_4 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_4 <= 12) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_4 <= 12) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L75] var_1_5 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_7=4, var_1_8=100, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_5 <= 11) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_5 <= 11) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=4, var_1_8=100, var_1_9=1] [L78] var_1_7 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_7 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_7 >= -63) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=100, var_1_9=1] [L80] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=100, var_1_9=1] [L81] var_1_8 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L83] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L84] var_1_9 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10] [L86] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-25, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L87] var_1_12 = __VERIFIER_nondet_long() [L88] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-128, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-128, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L89] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-128, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-128, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L90] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-128, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=-8, var_1_11=10, var_1_12=-128, var_1_13=-16, var_1_1=8, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L104] RET updateVariables() [L105] CALL step() [L38] COND FALSE !(var_1_7 < var_1_3) [L43] COND TRUE (var_1_8 + ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))) > var_1_7 [L44] var_1_10 = var_1_8 [L47] var_1_13 = var_1_7 [L48] signed long int stepLocal_1 = var_1_2 / var_1_12; [L49] COND TRUE ((var_1_10 * var_1_13) + var_1_8) > stepLocal_1 [L50] COND TRUE \read(var_1_9) [L51] var_1_11 = var_1_2 [L56] signed long int stepLocal_0 = var_1_11; [L57] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) [L57] COND TRUE ((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= stepLocal_0 [L58] var_1_1 = ((((var_1_4) > (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_4) : (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))))) [L105] RET step() [L106] CALL, EXPR property() [L96] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) [L96-L97] return ((((((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= var_1_11) ? (var_1_1 == ((signed char) ((((var_1_4) > (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_4) : (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))))))) : (var_1_9 ? (var_1_1 == ((signed char) var_1_5)) : 1)) && ((var_1_7 < var_1_3) ? ((last_1_var_1_11 > var_1_7) ? (var_1_10 == ((signed long int) (var_1_3 - var_1_8))) : 1) : (((var_1_8 + ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))) > var_1_7) ? (var_1_10 == ((signed long int) var_1_8)) : 1))) && ((((var_1_10 * var_1_13) + var_1_8) > (var_1_2 / var_1_12)) ? (var_1_9 ? (var_1_11 == ((signed long int) var_1_2)) : 1) : (var_1_11 == ((signed long int) var_1_7)))) && (var_1_13 == ((signed long int) var_1_7)) ; [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=10, var_1_10=10, var_1_11=127, var_1_12=-128, var_1_13=63, var_1_1=10, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=10, var_1_10=10, var_1_11=127, var_1_12=-128, var_1_13=63, var_1_1=10, var_1_2=127, var_1_3=63, var_1_4=1, var_1_5=4294967307, var_1_7=63, var_1_8=10, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 17, 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=34occurred 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 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 04:18:59,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:19:02,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:19:02,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:19:02,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:19:02,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:19:02,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:19:02,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:19:02,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:19:02,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:19:02,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:19:02,804 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:19:02,805 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:19:02,805 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:19:02,805 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:19:02,805 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:19:02,806 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:19:02,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:19:02,807 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:19:02,808 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:19:02,808 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:19:02,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:19:02,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:19:02,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:19:02,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:19:02,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:19:02,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:19:02,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:19:02,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:19:02,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:19:02,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:19:02,811 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:19:02,811 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:19:02,811 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:19:02,811 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:19:02,811 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_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 -> f9ff239312afab7a91d6fe872a2d72e23f9ae99790a4e2dd36278210d6f2fed8 [2024-11-14 04:19:03,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:19:03,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:19:03,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:19:03,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:19:03,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:19:03,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i Unable to find full path for "g++" [2024-11-14 04:19:05,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:19:06,011 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:19:06,011 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i [2024-11-14 04:19:06,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data/6ded3b6d7/4a4d017b29134918a8b7c079f5f60109/FLAG7655bea41 [2024-11-14 04:19:06,046 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/data/6ded3b6d7/4a4d017b29134918a8b7c079f5f60109 [2024-11-14 04:19:06,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:19:06,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:19:06,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:19:06,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:19:06,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:19:06,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e108322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06, skipping insertion in model container [2024-11-14 04:19:06,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:19:06,313 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_86cae769-026e-47a1-aa4d-33a1f257dcf3/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2024-11-14 04:19:06,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:19:06,413 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:19:06,428 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_86cae769-026e-47a1-aa4d-33a1f257dcf3/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-19.i[917,930] [2024-11-14 04:19:06,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:19:06,477 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:19:06,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06 WrapperNode [2024-11-14 04:19:06,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:19:06,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:19:06,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:19:06,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:19:06,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,552 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-14 04:19:06,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:19:06,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:19:06,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:19:06,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:19:06,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:19:06,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:19:06,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:19:06,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:19:06,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (1/1) ... [2024-11-14 04:19:06,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:19:06,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:19:06,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:19:06,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:19:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:19:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:19:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:19:06,699 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:19:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:19:06,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:19:06,829 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:19:06,832 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:19:07,326 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-14 04:19:07,326 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:19:07,338 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:19:07,339 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:19:07,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:19:07 BoogieIcfgContainer [2024-11-14 04:19:07,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:19:07,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:19:07,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:19:07,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:19:07,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:19:06" (1/3) ... [2024-11-14 04:19:07,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7295bae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:19:07, skipping insertion in model container [2024-11-14 04:19:07,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:06" (2/3) ... [2024-11-14 04:19:07,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7295bae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:19:07, skipping insertion in model container [2024-11-14 04:19:07,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:19:07" (3/3) ... [2024-11-14 04:19:07,356 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-19.i [2024-11-14 04:19:07,376 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:19:07,380 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-19.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:19:07,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:19:07,498 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;@40a3612f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:19:07,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:19:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:19:07,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 04:19:07,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:19:07,522 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:19:07,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:19:07,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:19:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash 803781503, now seen corresponding path program 1 times [2024-11-14 04:19:07,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:19:07,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032055566] [2024-11-14 04:19:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:07,548 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 04:19:07,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:19:07,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:07,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:19:07,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:19:07,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:19:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-14 04:19:07,947 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:19:07,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:19:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032055566] [2024-11-14 04:19:07,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032055566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:19:07,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:19:07,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:19:07,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705454115] [2024-11-14 04:19:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:19:07,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:19:07,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:19:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:19:07,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:19:07,987 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:19:08,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:19:08,026 INFO L93 Difference]: Finished difference Result 99 states and 169 transitions. [2024-11-14 04:19:08,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:19:08,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-11-14 04:19:08,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:19:08,037 INFO L225 Difference]: With dead ends: 99 [2024-11-14 04:19:08,037 INFO L226 Difference]: Without dead ends: 49 [2024-11-14 04:19:08,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 04:19:08,045 INFO L432 NwaCegarLoop]: 72 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, 72 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 04:19:08,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:19:08,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-14 04:19:08,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-14 04:19:08,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:19:08,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2024-11-14 04:19:08,140 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 108 [2024-11-14 04:19:08,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:19:08,141 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2024-11-14 04:19:08,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:19:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2024-11-14 04:19:08,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 04:19:08,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:19:08,149 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:19:08,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:08,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:08,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:19:08,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:19:08,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1058221757, now seen corresponding path program 1 times [2024-11-14 04:19:08,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:19:08,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470041912] [2024-11-14 04:19:08,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:08,355 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 04:19:08,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:19:08,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:08,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:19:08,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:19:08,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:19:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 313 proven. 138 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-14 04:19:11,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:19:12,932 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:19:12,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470041912] [2024-11-14 04:19:12,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470041912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:19:12,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1923523878] [2024-11-14 04:19:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:12,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:19:12,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:19:12,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:19:12,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:19:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:19:13,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:19:13,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:19:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 319 proven. 111 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 04:19:15,648 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:19:15,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1923523878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:19:15,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813592330] [2024-11-14 04:19:15,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:15,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:19:15,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:19:15,931 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:19:15,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:19:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:19:16,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:19:16,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:19:17,328 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 319 proven. 111 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 04:19:17,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:19:17,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813592330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:19:17,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:19:17,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 27 [2024-11-14 04:19:17,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234173452] [2024-11-14 04:19:17,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:19:17,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 04:19:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:19:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 04:19:17,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=857, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 04:19:17,459 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 27 states have internal predecessors, (76), 9 states have call successors, (30), 9 states have call predecessors, (30), 15 states have return successors, (31), 8 states have call predecessors, (31), 9 states have call successors, (31) [2024-11-14 04:19:19,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:19:19,541 INFO L93 Difference]: Finished difference Result 148 states and 195 transitions. [2024-11-14 04:19:19,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 04:19:19,544 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 27 states have internal predecessors, (76), 9 states have call successors, (30), 9 states have call predecessors, (30), 15 states have return successors, (31), 8 states have call predecessors, (31), 9 states have call successors, (31) Word has length 108 [2024-11-14 04:19:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:19:19,546 INFO L225 Difference]: With dead ends: 148 [2024-11-14 04:19:19,546 INFO L226 Difference]: Without dead ends: 102 [2024-11-14 04:19:19,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=344, Invalid=1296, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 04:19:19,549 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 140 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:19:19,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 297 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 04:19:19,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-14 04:19:19,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 73. [2024-11-14 04:19:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:19:19,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2024-11-14 04:19:19,569 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 108 [2024-11-14 04:19:19,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:19:19,570 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2024-11-14 04:19:19,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 27 states have internal predecessors, (76), 9 states have call successors, (30), 9 states have call predecessors, (30), 15 states have return successors, (31), 8 states have call predecessors, (31), 9 states have call successors, (31) [2024-11-14 04:19:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2024-11-14 04:19:19,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 04:19:19,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:19:19,573 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:19:19,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:19:19,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:19,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 04:19:20,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:19:20,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:19:20,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:19:20,178 INFO L85 PathProgramCache]: Analyzing trace with hash 590154687, now seen corresponding path program 1 times [2024-11-14 04:19:20,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:19:20,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125065634] [2024-11-14 04:19:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:20,179 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 04:19:20,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:19:20,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/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 04:19:20,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cae769-026e-47a1-aa4d-33a1f257dcf3/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 04:19:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:19:20,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:19:20,439 INFO L278 TraceCheckSpWp]: Computing forward predicates...