./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:00:33,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:00:33,140 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:00:33,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:00:33,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:00:33,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:00:33,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:00:33,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:00:33,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:00:33,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:00:33,203 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:00:33,204 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:00:33,204 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:00:33,204 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:00:33,204 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:00:33,204 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:00:33,204 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:00:33,205 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:00:33,205 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:00:33,205 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:00:33,206 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:00:33,206 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:00:33,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:00:33,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:00:33,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:00:33,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:00:33,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:00:33,208 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:00:33,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:33,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:00:33,209 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:00:33,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:00:33,210 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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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 -> 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a [2024-11-14 05:00:33,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:00:33,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:00:33,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:00:33,642 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:00:33,642 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:00:33,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i Unable to find full path for "g++" [2024-11-14 05:00:35,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:00:36,164 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:00:36,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-14 05:00:36,190 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data/382c8fe9f/922a3e607bcb4016b0ba88f1f0b6114e/FLAG28445b308 [2024-11-14 05:00:36,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data/382c8fe9f/922a3e607bcb4016b0ba88f1f0b6114e [2024-11-14 05:00:36,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:00:36,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:00:36,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:36,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:00:36,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:00:36,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d84824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36, skipping insertion in model container [2024-11-14 05:00:36,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,245 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:00:36,420 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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928] [2024-11-14 05:00:36,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:36,482 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:00:36,497 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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928] [2024-11-14 05:00:36,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:36,552 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:00:36,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36 WrapperNode [2024-11-14 05:00:36,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:36,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:36,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:00:36,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:00:36,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,648 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-14 05:00:36,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:36,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:00:36,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:00:36,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:00:36,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:00:36,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:00:36,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:00:36,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:00:36,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (1/1) ... [2024-11-14 05:00:36,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:36,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:36,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:00:36,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:00:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:00:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:00:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:00:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:00:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:00:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:00:36,915 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:00:36,918 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:00:37,423 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-14 05:00:37,423 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:00:37,704 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:00:37,705 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:00:37,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:37 BoogieIcfgContainer [2024-11-14 05:00:37,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:00:37,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:00:37,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:00:37,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:00:37,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:00:36" (1/3) ... [2024-11-14 05:00:37,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cebd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:37, skipping insertion in model container [2024-11-14 05:00:37,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:36" (2/3) ... [2024-11-14 05:00:37,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cebd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:37, skipping insertion in model container [2024-11-14 05:00:37,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:37" (3/3) ... [2024-11-14 05:00:37,717 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-14 05:00:37,736 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:00:37,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-64.i that has 2 procedures, 27 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:00:37,802 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:00:37,817 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;@ef40294, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:00:37,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:00:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:00:37,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 05:00:37,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:37,833 INFO L215 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:37,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:00:37,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1685022693, now seen corresponding path program 1 times [2024-11-14 05:00:37,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:37,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759126320] [2024-11-14 05:00:37,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:37,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:00:38,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334959023] [2024-11-14 05:00:38,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:38,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:38,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:38,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:38,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:00:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:00:38,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:00:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:00:38,822 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:00:38,825 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:00:38,829 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:00:38,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:00:39,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:00:39,037 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:00:39,097 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:00:39,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:00:39 BoogieIcfgContainer [2024-11-14 05:00:39,102 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:00:39,103 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:00:39,103 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:00:39,104 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:00:39,104 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:37" (3/4) ... [2024-11-14 05:00:39,107 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:00:39,108 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:00:39,112 INFO L158 Benchmark]: Toolchain (without parser) took 2893.82ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 101.9MB in the end (delta: 17.3MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-11-14 05:00:39,112 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:39,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.98ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 106.6MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:00:39,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.71ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 103.6MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:00:39,114 INFO L158 Benchmark]: Boogie Preprocessor took 58.08ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:39,114 INFO L158 Benchmark]: RCFGBuilder took 997.81ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 66.2MB in the end (delta: 36.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 05:00:39,114 INFO L158 Benchmark]: TraceAbstraction took 1393.63ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 101.9MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:39,115 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 101.9MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:39,122 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.98ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 106.6MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.71ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 103.6MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.08ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 997.81ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 66.2MB in the end (delta: 36.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1393.63ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 101.9MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 101.9MB 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 someBinaryFLOATComparisonOperation at line 82, overapproximation of bitwiseAnd at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 64. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.9; [L23] unsigned long int var_1_3 = 2941876006; [L24] double var_1_5 = 127.422; [L25] unsigned short int var_1_6 = 10; [L26] unsigned char var_1_7 = 1; [L27] unsigned long int var_1_9 = 4; [L28] unsigned short int var_1_11 = 44699; [L29] signed short int var_1_13 = 2; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 16; [L32] float var_1_17 = 8.125; [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] FCALL updateLastVariables() [L90] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_ulong() [L61] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L62] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_5=63711/500, var_1_6=10, var_1_7=1, var_1_9=4] [L63] var_1_5 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=1, var_1_9=4] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=1, var_1_9=4] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_9=4] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_9=4] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=4] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=4] [L68] var_1_9 = __VERIFIER_nondet_ulong() [L69] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0] [L70] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0] [L71] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_11=44699, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L72] var_1_11 = __VERIFIER_nondet_ushort() [L73] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L74] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_16=16, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L75] var_1_16 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L77] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_16=-511, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_11=-32769, var_1_13=2, var_1_15=0, var_1_16=-511, var_1_17=65/8, var_1_1=9/10, var_1_3=-377957122049, var_1_6=10, var_1_7=0, var_1_9=2] [L90] RET updateVariables() [L91] CALL step() [L36] var_1_15 = var_1_16 [L37] var_1_17 = var_1_5 [L38] EXPR var_1_15 & var_1_15 [L38] unsigned long int stepLocal_2 = var_1_3 * (var_1_15 & var_1_15); [L39] COND FALSE !(\read(var_1_7)) [L46] var_1_6 = (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1) [L48] var_1_13 = var_1_15 [L49] signed long int stepLocal_1 = var_1_6 * var_1_15; [L50] unsigned char stepLocal_0 = var_1_15; [L51] COND TRUE stepLocal_0 <= (var_1_3 - var_1_6) [L52] COND FALSE !(var_1_3 < stepLocal_1) [L55] var_1_1 = var_1_5 [L91] RET step() [L92] CALL, EXPR property() [L82] EXPR ((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1)))) [L82-L83] return (((((var_1_15 <= (var_1_3 - var_1_6)) ? ((var_1_3 < (var_1_6 * var_1_15)) ? (var_1_1 == ((double) var_1_5)) : (var_1_1 == ((double) var_1_5))) : 1) && (var_1_7 ? (((var_1_3 * (var_1_15 & var_1_15)) <= (var_1_15 / var_1_9)) ? (var_1_6 == ((unsigned short int) (47342 - var_1_15))) : (var_1_6 == ((unsigned short int) (var_1_11 - ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))))))) : (var_1_6 == ((unsigned short int) (((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))) + 1))))) && (var_1_13 == ((signed short int) var_1_15))) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((float) var_1_5)) ; [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=-32769, var_1_13=1, var_1_15=-511, var_1_16=-511, var_1_17=2, var_1_1=2, var_1_3=-377957122049, var_1_5=2, var_1_6=2, var_1_7=0, var_1_9=2] [L19] reach_error() VAL [isInitial=1, var_1_11=-32769, var_1_13=1, var_1_15=-511, var_1_16=-511, var_1_17=2, var_1_1=2, var_1_3=-377957122049, var_1_5=2, var_1_6=2, var_1_7=0, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 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 05:00:39,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:00:42,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:00:42,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:00:42,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:00:42,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:00:42,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:00:42,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:00:42,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:00:42,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:00:42,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:00:42,487 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:00:42,488 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:00:42,488 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:00:42,488 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:00:42,488 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:00:42,488 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:00:42,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:00:42,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:00:42,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:00:42,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:00:42,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:00:42,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:00:42,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:00:42,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:00:42,490 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:00:42,491 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:00:42,491 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:00:42,491 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:00:42,491 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:00:42,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:00:42,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:00:42,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:00:42,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:00:42,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:00:42,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:00:42,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:42,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:00:42,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:00:42,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:00:42,494 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:00:42,494 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:00:42,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:00:42,494 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:00:42,494 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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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 -> 5cfd8244917467985e1ec9aab123eb53d7984fa345597a11e6475c4a60dfdb5a [2024-11-14 05:00:42,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:00:42,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:00:42,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:00:42,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:00:42,878 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:00:42,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i Unable to find full path for "g++" [2024-11-14 05:00:45,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:00:45,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:00:45,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-14 05:00:45,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data/ebdc5cfa5/5fcdcc85734b4799af979263589920fc/FLAG6f892158e [2024-11-14 05:00:45,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/data/ebdc5cfa5/5fcdcc85734b4799af979263589920fc [2024-11-14 05:00:45,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:00:45,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:00:45,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:45,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:00:45,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:00:45,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dff39c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45, skipping insertion in model container [2024-11-14 05:00:45,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,446 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:00:45,646 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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928] [2024-11-14 05:00:45,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:45,749 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:00:45,764 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_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-64.i[915,928] [2024-11-14 05:00:45,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:45,837 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:00:45,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45 WrapperNode [2024-11-14 05:00:45,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:45,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:45,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:00:45,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:00:45,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,912 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-14 05:00:45,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:45,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:00:45,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:00:45,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:00:45,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:00:45,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:00:45,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:00:45,961 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:00:45,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (1/1) ... [2024-11-14 05:00:45,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:45,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:46,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:00:46,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:00:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:00:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:00:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:00:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:00:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:00:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:00:46,141 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:00:46,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:00:46,962 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-14 05:00:46,962 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:00:46,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:00:46,985 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:00:46,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:46 BoogieIcfgContainer [2024-11-14 05:00:46,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:00:46,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:00:46,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:00:46,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:00:46,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:00:45" (1/3) ... [2024-11-14 05:00:46,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cc3e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:46, skipping insertion in model container [2024-11-14 05:00:46,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:45" (2/3) ... [2024-11-14 05:00:47,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cc3e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:46, skipping insertion in model container [2024-11-14 05:00:47,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:46" (3/3) ... [2024-11-14 05:00:47,002 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-64.i [2024-11-14 05:00:47,022 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:00:47,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-64.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:00:47,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:00:47,115 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;@7f83ea6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:00:47,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:00:47,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:00:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 05:00:47,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:47,133 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:47,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:00:47,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2047350792, now seen corresponding path program 1 times [2024-11-14 05:00:47,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:00:47,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681752499] [2024-11-14 05:00:47,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:47,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:47,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:00:47,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:00:47,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:00:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:47,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:00:47,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-14 05:00:47,524 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:00:47,525 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:00:47,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681752499] [2024-11-14 05:00:47,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681752499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:47,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:00:47,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:00:47,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391233878] [2024-11-14 05:00:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:47,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:00:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:00:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:00:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:00:47,581 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:00:47,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:47,610 INFO L93 Difference]: Finished difference Result 77 states and 126 transitions. [2024-11-14 05:00:47,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:00:47,612 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-14 05:00:47,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:47,620 INFO L225 Difference]: With dead ends: 77 [2024-11-14 05:00:47,620 INFO L226 Difference]: Without dead ends: 38 [2024-11-14 05:00:47,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:00:47,628 INFO L432 NwaCegarLoop]: 53 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, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:47,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:00:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-14 05:00:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-14 05:00:47,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:00:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-14 05:00:47,687 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 78 [2024-11-14 05:00:47,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:47,689 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-14 05:00:47,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:00:47,690 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-14 05:00:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 05:00:47,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:47,696 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:47,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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 05:00:47,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:47,902 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:00:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:47,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1433562488, now seen corresponding path program 1 times [2024-11-14 05:00:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:00:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322205147] [2024-11-14 05:00:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:47,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:47,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:00:47,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:00:47,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:00:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:48,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:00:48,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 05:00:48,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:48,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:00:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322205147] [2024-11-14 05:00:48,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322205147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1716333823] [2024-11-14 05:00:48,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:48,924 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:00:48,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:00:48,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:00:48,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 05:00:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:49,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:00:49,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 05:00:50,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:50,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1716333823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:50,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480471675] [2024-11-14 05:00:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:50,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:50,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:50,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:50,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:00:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:50,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:00:50,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:50,679 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 05:00:50,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:50,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480471675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:50,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:00:50,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-14 05:00:50,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19262776] [2024-11-14 05:00:50,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:00:50,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:00:50,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:00:50,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:00:50,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:00:50,739 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:00:51,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:51,810 INFO L93 Difference]: Finished difference Result 90 states and 121 transitions. [2024-11-14 05:00:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:00:51,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2024-11-14 05:00:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:51,822 INFO L225 Difference]: With dead ends: 90 [2024-11-14 05:00:51,822 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 05:00:51,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:00:51,823 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:51,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 89 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:00:51,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 05:00:51,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2024-11-14 05:00:51,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:00:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2024-11-14 05:00:51,836 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 78 [2024-11-14 05:00:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:51,837 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2024-11-14 05:00:51,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:00:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2024-11-14 05:00:51,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 05:00:51,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:51,840 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:51,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 05:00:52,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:00:52,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 05:00:52,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:52,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:00:52,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:52,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1255203852, now seen corresponding path program 1 times [2024-11-14 05:00:52,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:00:52,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554013156] [2024-11-14 05:00:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:52,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:52,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:00:52,446 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:00:52,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 05:00:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:52,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:00:52,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:53,122 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 05:00:53,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:53,378 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:00:53,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554013156] [2024-11-14 05:00:53,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554013156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:53,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1508198311] [2024-11-14 05:00:53,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:53,378 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:00:53,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:00:53,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:00:53,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 05:00:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:53,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:00:53,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:54,290 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 05:00:54,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:54,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1508198311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:54,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064598793] [2024-11-14 05:00:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:54,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:54,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:54,380 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:54,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:00:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:54,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:00:54,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 05:00:54,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:54,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064598793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:54,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:00:54,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-14 05:00:54,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169632027] [2024-11-14 05:00:54,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:00:54,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:00:54,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:00:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:00:54,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:00:54,945 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:00:57,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:57,199 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions. [2024-11-14 05:00:57,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:00:57,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-11-14 05:00:57,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:57,210 INFO L225 Difference]: With dead ends: 83 [2024-11-14 05:00:57,211 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 05:00:57,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:00:57,212 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:57,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:00:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 05:00:57,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-11-14 05:00:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:00:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2024-11-14 05:00:57,231 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 79 [2024-11-14 05:00:57,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:57,232 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2024-11-14 05:00:57,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:00:57,233 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2024-11-14 05:00:57,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 05:00:57,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:57,234 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:57,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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)] Ended with exit code 0 [2024-11-14 05:00:57,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:00:57,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 05:00:57,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:00:57,835 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:00:57,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:57,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1257050894, now seen corresponding path program 1 times [2024-11-14 05:00:57,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:00:57,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836761450] [2024-11-14 05:00:57,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:57,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:00:57,843 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:00:57,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/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 (9)] Waiting until timeout for monitored process [2024-11-14 05:00:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:58,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:00:58,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 05:01:30,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:03:08,908 WARN L286 SmtUtils]: Spent 21.81s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:03:38,222 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 24) c_~var_1_15~0))) (let ((.cse33 (bvneg .cse4)) (.cse32 ((_ zero_extend 16) c_~var_1_6~0))) (let ((.cse1 (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse33 (_ bv47342 32)))) .cse32))) (let ((.cse0 (fp.eq c_~var_1_5~0 c_~var_1_5~0)) (.cse3 (not .cse1)) (.cse5 (bvneg .cse32)) (.cse6 (bvand .cse4 .cse4))) (and (or .cse0 (let ((.cse2 (and (forall ((~var_1_3~0 (_ BitVec 32)) (~var_1_9~0 (_ BitVec 32))) (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0))) (forall ((~var_1_3~0 (_ BitVec 32)) (~var_1_9~0 (_ BitVec 32))) (not (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0))))))) (and (or .cse1 .cse2) (or .cse2 .cse3) (forall ((~var_1_3~0 (_ BitVec 32))) (not (bvule .cse4 (bvadd .cse5 ~var_1_3~0))))))) (or (not .cse0) (let ((.cse28 (= (_ bv0 8) c_~var_1_7~0)) (.cse29 (forall ((~var_1_11~0 (_ BitVec 16))) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse33 ((_ zero_extend 16) ~var_1_11~0)))) .cse32))) (.cse30 (forall ((~var_1_11~0 (_ BitVec 16))) (not (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse33 ((_ zero_extend 16) ~var_1_11~0)))) .cse32)))) (.cse31 (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv1 32) .cse4))) .cse32))) (let ((.cse22 (fp.eq c_~var_1_17~0 ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_5~0))) (.cse23 (= ((_ sign_extend 16) c_~var_1_13~0) ((_ sign_extend 16) ((_ zero_extend 8) c_~var_1_15~0)))) (.cse24 (= ((_ zero_extend 24) c_~var_1_16~0) .cse4)) (.cse25 (or .cse30 .cse31)) (.cse26 (or .cse29 .cse31)) (.cse13 (not .cse28)) (.cse14 (and .cse30 .cse29)) (.cse27 (or .cse28 .cse29))) (let ((.cse15 (and (or .cse13 .cse14) .cse27)) (.cse9 (and .cse28 .cse25 .cse26)) (.cse12 (and (or (and .cse25 .cse26) .cse13) .cse27)) (.cse7 (not .cse24)) (.cse8 (not .cse23)) (.cse16 (not .cse22)) (.cse20 (and .cse22 .cse23 .cse24))) (and (or .cse7 .cse8 (let ((.cse10 (forall ((~var_1_3~0 (_ BitVec 32)) (~var_1_9~0 (_ BitVec 32))) (or (bvule .cse4 (bvadd .cse5 ~var_1_3~0)) (not (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0)))))) (.cse11 (forall ((~var_1_3~0 (_ BitVec 32)) (~var_1_9~0 (_ BitVec 32))) (or (bvule .cse4 (bvadd .cse5 ~var_1_3~0)) (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0)))))) (and (or (and (or .cse9 .cse10) (or .cse11 .cse12)) .cse1) (or (and (or .cse13 .cse14 .cse10) (or .cse15 .cse11)) .cse3))) .cse16) (or (let ((.cse18 (forall ((~var_1_3~0 (_ BitVec 32)) (~var_1_9~0 (_ BitVec 32))) (or (not (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0))) (not (bvule .cse4 (bvadd .cse5 ~var_1_3~0)))))) (.cse17 (forall ((~var_1_3~0 (_ BitVec 32)) (~var_1_9~0 (_ BitVec 32))) (or (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0)) (not (bvule .cse4 (bvadd .cse5 ~var_1_3~0))))))) (and (or (and (or .cse15 .cse17) (or .cse18 .cse13 .cse14)) .cse3) (or .cse1 (and (or .cse9 .cse18) (or .cse12 .cse17))))) .cse7 .cse8 .cse16) (or (let ((.cse19 (and (forall ((~var_1_3~0 (_ BitVec 32))) (or (bvule .cse4 (bvadd .cse5 ~var_1_3~0)) (forall ((~var_1_9~0 (_ BitVec 32))) (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0))))) (forall ((~var_1_3~0 (_ BitVec 32))) (or (bvule .cse4 (bvadd .cse5 ~var_1_3~0)) (forall ((~var_1_9~0 (_ BitVec 32))) (not (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0))))))))) (and (or .cse19 .cse3) (or .cse1 .cse19))) .cse20) (or .cse20 (let ((.cse21 (and (forall ((~var_1_3~0 (_ BitVec 32))) (or (forall ((~var_1_9~0 (_ BitVec 32))) (not (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0)))) (not (bvule .cse4 (bvadd .cse5 ~var_1_3~0))))) (forall ((~var_1_3~0 (_ BitVec 32))) (or (not (bvule .cse4 (bvadd .cse5 ~var_1_3~0))) (forall ((~var_1_9~0 (_ BitVec 32))) (bvule (bvmul ~var_1_3~0 .cse6) (bvudiv .cse4 ~var_1_9~0)))))))) (and (or .cse1 .cse21) (or .cse21 .cse3)))))))))))))) is different from true [2024-11-14 05:05:11,093 WARN L286 SmtUtils]: Spent 17.09s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:05:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-14 05:05:57,304 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:05:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836761450] [2024-11-14 05:05:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836761450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:05:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1803873592] [2024-11-14 05:05:57,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:57,305 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:05:57,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:05:57,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:05:57,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 05:05:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:57,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:05:57,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:07:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 05:07:25,086 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:45,931 WARN L286 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:11:07,304 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-14 05:11:07,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1803873592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:11:07,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648405922] [2024-11-14 05:11:07,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:07,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:07,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:07,307 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:07,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65c5cfb-4bb4-4d8b-9200-5726c1287b80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:11:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:07,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:11:07,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 96 proven. 42 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-14 05:11:45,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:13:49,702 WARN L286 SmtUtils]: Spent 17.52s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:14:49,138 WARN L286 SmtUtils]: Spent 12.81s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)