./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:30:32,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:30:32,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:30:32,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:30:32,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:30:32,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:30:32,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:30:32,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:30:32,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:30:32,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:30:32,507 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:30:32,507 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:30:32,508 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:30:32,508 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:30:32,509 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:30:32,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:30:32,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:30:32,509 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:30:32,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:30:32,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:30:32,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:30:32,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:30:32,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:30:32,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:30:32,512 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:30:32,512 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:30:32,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:30:32,512 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:30:32,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:30:32,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:30:32,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:30:32,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:30:32,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:30:32,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:30:32,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:30:32,513 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:30:32,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:30:32,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:30:32,514 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:30:32,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:30:32,514 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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 -> ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 [2024-11-14 03:30:32,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:30:32,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:30:32,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:30:32,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:30:32,860 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:30:32,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i Unable to find full path for "g++" [2024-11-14 03:30:34,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:30:35,023 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:30:35,026 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-11-14 03:30:35,037 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data/9e632c683/93be27713ab94ce6aad27211a768da26/FLAGfce891b52 [2024-11-14 03:30:35,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data/9e632c683/93be27713ab94ce6aad27211a768da26 [2024-11-14 03:30:35,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:30:35,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:30:35,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:30:35,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:30:35,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:30:35,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db130a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35, skipping insertion in model container [2024-11-14 03:30:35,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,094 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:30:35,260 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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-11-14 03:30:35,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:30:35,329 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:30:35,339 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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-11-14 03:30:35,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:30:35,403 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:30:35,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35 WrapperNode [2024-11-14 03:30:35,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:30:35,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:30:35,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:30:35,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:30:35,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,459 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2024-11-14 03:30:35,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:30:35,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:30:35,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:30:35,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:30:35,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:30:35,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:30:35,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:30:35,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:30:35,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (1/1) ... [2024-11-14 03:30:35,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:30:35,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:35,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:30:35,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:30:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:30:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:30:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:30:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:30:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:30:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:30:35,655 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:30:35,657 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:30:36,003 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-14 03:30:36,003 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:30:36,172 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:30:36,173 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:30:36,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:30:36 BoogieIcfgContainer [2024-11-14 03:30:36,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:30:36,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:30:36,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:30:36,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:30:36,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:30:35" (1/3) ... [2024-11-14 03:30:36,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598fae7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:30:36, skipping insertion in model container [2024-11-14 03:30:36,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:35" (2/3) ... [2024-11-14 03:30:36,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598fae7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:30:36, skipping insertion in model container [2024-11-14 03:30:36,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:30:36" (3/3) ... [2024-11-14 03:30:36,183 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-11-14 03:30:36,198 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:30:36,199 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i that has 2 procedures, 36 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:30:36,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:30:36,264 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;@1352f7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:30:36,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:30:36,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 03:30:36,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 03:30:36,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:36,277 INFO L215 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:36,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:30:36,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:36,283 INFO L85 PathProgramCache]: Analyzing trace with hash -623420798, now seen corresponding path program 1 times [2024-11-14 03:30:36,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:36,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863226834] [2024-11-14 03:30:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:36,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:30:36,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:30:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:30:36,839 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:30:36,840 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:30:36,841 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:30:36,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:30:36,848 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:30:36,921 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:30:36,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:30:36 BoogieIcfgContainer [2024-11-14 03:30:36,925 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:30:36,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:30:36,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:30:36,926 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:30:36,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:30:36" (3/4) ... [2024-11-14 03:30:36,929 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:30:36,930 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:30:36,931 INFO L158 Benchmark]: Toolchain (without parser) took 1869.22ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 64.7MB in the end (delta: 28.5MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-14 03:30:36,931 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:30:36,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.14ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 80.5MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:30:36,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.57ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:30:36,932 INFO L158 Benchmark]: Boogie Preprocessor took 40.87ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:30:36,932 INFO L158 Benchmark]: RCFGBuilder took 671.79ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 47.6MB in the end (delta: 29.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:30:36,933 INFO L158 Benchmark]: TraceAbstraction took 749.95ms. Allocated memory is still 117.4MB. Free memory was 47.1MB in the beginning and 64.7MB in the end (delta: -17.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:30:36,933 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 117.4MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:30:36,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.14ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 80.5MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.57ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.87ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 671.79ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 47.6MB in the end (delta: 29.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 749.95ms. Allocated memory is still 117.4MB. Free memory was 47.1MB in the beginning and 64.7MB in the end (delta: -17.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 117.4MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 56, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 87, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 8; [L23] unsigned char var_1_2 = 128; [L24] unsigned char var_1_3 = 64; [L25] unsigned long int var_1_4 = 1; [L26] unsigned long int var_1_5 = 5; [L27] signed char var_1_7 = 4; [L28] signed char var_1_8 = 100; [L29] unsigned char var_1_9 = 1; [L30] signed long int var_1_10 = -8; [L31] float var_1_11 = 255.2; [L32] float var_1_12 = 128.25; [L33] float var_1_13 = 100.5; [L34] float var_1_14 = 255.9; [L35] signed long int var_1_15 = -128; [L36] unsigned short int var_1_16 = 2; [L37] signed long int last_1_var_1_10 = -8; [L101] isInitial = 1 [L102] FCALL initially() [L103] int k_loop; [L104] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=128, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L104] COND TRUE k_loop < 1 [L105] CALL updateLastVariables() [L94] last_1_var_1_10 = var_1_10 [L105] RET updateLastVariables() [L106] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_2 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_2 >= 127) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=64, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L68] var_1_3 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=1, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L71] var_1_4 = __VERIFIER_nondet_ulong() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_4 <= 12) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_4 <= 12) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=5, var_1_7=4, var_1_8=100, var_1_9=1] [L74] var_1_5 = __VERIFIER_nondet_ulong() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_7=4, var_1_8=100, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_5 <= 11) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=4, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 <= 11) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=4, var_1_8=100, var_1_9=1] [L77] var_1_7 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_7 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 >= -63) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=100, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=100, var_1_9=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=100, var_1_9=1] [L80] var_1_8 = __VERIFIER_nondet_char() [L81] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=1] [L82] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=1] [L83] var_1_9 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0] [L85] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_12=513/4, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L86] var_1_12 = __VERIFIER_nondet_float() [L87] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_13=201/2, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L88] var_1_13 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_14=2559/10, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L90] var_1_14 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_14 >= -230584.3009213691390e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_14 >= -230584.3009213691390e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_11=1276/5, var_1_15=-128, var_1_16=2, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L106] RET updateVariables() [L107] CALL step() [L41] COND TRUE var_1_7 < var_1_3 [L42] COND FALSE !(last_1_var_1_10 > var_1_7) [L50] var_1_11 = (var_1_12 + (var_1_13 + var_1_14)) [L51] var_1_16 = 64 [L52] COND FALSE !(\read(var_1_9)) [L55] signed long int stepLocal_0 = var_1_15; [L56] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) [L56] COND FALSE !(((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= stepLocal_0) [L59] COND FALSE !(\read(var_1_9)) [L107] RET step() [L108] CALL, EXPR property() [L97] EXPR (var_1_2 - var_1_3) << (var_1_4 + var_1_5) [L97-L98] return (((((((var_1_2 - var_1_3) << (var_1_4 + var_1_5)) <= var_1_15) ? (var_1_1 == ((signed char) ((((var_1_4) > (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (var_1_4) : (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))))))) : (var_1_9 ? (var_1_1 == ((signed char) var_1_5)) : 1)) && ((var_1_7 < var_1_3) ? ((last_1_var_1_10 > var_1_7) ? (var_1_10 == ((signed long int) (var_1_3 - var_1_8))) : 1) : (var_1_9 ? (var_1_10 == ((signed long int) var_1_5)) : 1))) && (var_1_11 == ((float) (var_1_12 + (var_1_13 + var_1_14))))) && (var_1_9 ? (var_1_15 == ((signed long int) (var_1_7 + var_1_16))) : 1)) && (var_1_16 == ((unsigned short int) 64)) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_15=-128, var_1_16=64, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=-8, var_1_10=-8, var_1_15=-128, var_1_16=64, var_1_1=8, var_1_2=127, var_1_3=127, var_1_4=8, var_1_5=11, var_1_7=63, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 03:30:36,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:30:39,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:30:39,882 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:30:39,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:30:39,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:30:39,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:30:39,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:30:39,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:30:39,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:30:39,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:30:39,977 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:30:39,977 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:30:39,977 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:30:39,977 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:30:39,977 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:30:39,978 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:30:39,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:30:39,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:30:39,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:30:39,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:30:39,979 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:30:39,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:30:39,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:30:39,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:30:39,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:30:39,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:30:39,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:30:39,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:30:39,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:30:39,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:30:39,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:30:39,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:30:39,983 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:30:39,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:30:39,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:30:39,983 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:30:39,983 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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 -> ce316eeb4b3641499c2394eeff325d13cd059837344f9d1e23ab187d3034f448 [2024-11-14 03:30:40,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:30:40,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:30:40,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:30:40,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:30:40,333 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:30:40,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i Unable to find full path for "g++" [2024-11-14 03:30:42,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:30:42,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:30:42,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-11-14 03:30:42,946 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data/3bde6002e/b040ee0aaaac4c34b5db788e403158cf/FLAGdd68e3321 [2024-11-14 03:30:43,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/data/3bde6002e/b040ee0aaaac4c34b5db788e403158cf [2024-11-14 03:30:43,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:30:43,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:30:43,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:30:43,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:30:43,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:30:43,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecb956e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43, skipping insertion in model container [2024-11-14 03:30:43,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:30:43,413 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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-11-14 03:30:43,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:30:43,494 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:30:43,508 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_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-19.i[915,928] [2024-11-14 03:30:43,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:30:43,558 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:30:43,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43 WrapperNode [2024-11-14 03:30:43,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:30:43,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:30:43,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:30:43,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:30:43,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,624 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-14 03:30:43,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:30:43,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:30:43,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:30:43,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:30:43,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:30:43,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:30:43,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:30:43,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:30:43,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (1/1) ... [2024-11-14 03:30:43,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:30:43,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:43,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:30:43,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:30:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:30:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:30:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:30:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:30:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:30:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:30:43,899 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:30:43,902 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:30:44,442 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-14 03:30:44,442 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:30:44,454 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:30:44,455 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:30:44,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:30:44 BoogieIcfgContainer [2024-11-14 03:30:44,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:30:44,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:30:44,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:30:44,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:30:44,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:30:43" (1/3) ... [2024-11-14 03:30:44,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a85e485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:30:44, skipping insertion in model container [2024-11-14 03:30:44,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:43" (2/3) ... [2024-11-14 03:30:44,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a85e485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:30:44, skipping insertion in model container [2024-11-14 03:30:44,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:30:44" (3/3) ... [2024-11-14 03:30:44,472 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i [2024-11-14 03:30:44,489 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:30:44,490 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-19.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:30:44,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:30:44,595 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;@5a49f3cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:30:44,595 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:30:44,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 03:30:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 03:30:44,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:44,613 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:44,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:30:44,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:44,618 INFO L85 PathProgramCache]: Analyzing trace with hash 924422161, now seen corresponding path program 1 times [2024-11-14 03:30:44,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:30:44,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786723381] [2024-11-14 03:30:44,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:44,628 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 03:30:44,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:30:44,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:44,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:44,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:30:44,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-14 03:30:45,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:30:45,005 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:30:45,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786723381] [2024-11-14 03:30:45,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786723381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:45,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:45,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:45,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623164701] [2024-11-14 03:30:45,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:45,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:30:45,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:30:45,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:30:45,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:30:45,045 INFO L87 Difference]: Start difference. First operand has 54 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 03:30:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:45,076 INFO L93 Difference]: Finished difference Result 105 states and 172 transitions. [2024-11-14 03:30:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:30:45,078 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110 [2024-11-14 03:30:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:45,086 INFO L225 Difference]: With dead ends: 105 [2024-11-14 03:30:45,087 INFO L226 Difference]: Without dead ends: 50 [2024-11-14 03:30:45,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 109 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 03:30:45,093 INFO L432 NwaCegarLoop]: 76 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, 76 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 03:30:45,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:30:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-14 03:30:45,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-14 03:30:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 03:30:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2024-11-14 03:30:45,136 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 110 [2024-11-14 03:30:45,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:45,136 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2024-11-14 03:30:45,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 03:30:45,137 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2024-11-14 03:30:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 03:30:45,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:45,141 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:45,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:45,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:45,343 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:30:45,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:45,344 INFO L85 PathProgramCache]: Analyzing trace with hash -602028789, now seen corresponding path program 1 times [2024-11-14 03:30:45,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:30:45,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512075955] [2024-11-14 03:30:45,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:45,347 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 03:30:45,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:30:45,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:45,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:45,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:30:45,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 03:30:45,728 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:30:45,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:30:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512075955] [2024-11-14 03:30:45,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512075955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:45,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:45,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:30:45,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146168382] [2024-11-14 03:30:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:45,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:45,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:30:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:45,734 INFO L87 Difference]: Start difference. First operand 50 states and 72 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 03:30:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:46,330 INFO L93 Difference]: Finished difference Result 132 states and 190 transitions. [2024-11-14 03:30:46,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:46,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-14 03:30:46,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:46,334 INFO L225 Difference]: With dead ends: 132 [2024-11-14 03:30:46,334 INFO L226 Difference]: Without dead ends: 85 [2024-11-14 03:30:46,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:46,336 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 47 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:46,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 128 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:30:46,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-14 03:30:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2024-11-14 03:30:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.18) internal successors, (59), 51 states have internal predecessors, (59), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-14 03:30:46,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2024-11-14 03:30:46,360 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 110 [2024-11-14 03:30:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:46,361 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2024-11-14 03:30:46,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 03:30:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2024-11-14 03:30:46,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 03:30:46,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:46,364 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:46,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:46,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:46,565 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:30:46,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:46,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1917931145, now seen corresponding path program 1 times [2024-11-14 03:30:46,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:30:46,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167626213] [2024-11-14 03:30:46,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:46,566 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 03:30:46,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:30:46,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/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 03:30:46,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:30:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:46,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 03:30:46,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:10,038 WARN L286 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:31:27,148 WARN L286 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:31:45,606 WARN L286 SmtUtils]: Spent 7.35s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:32:10,307 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:32:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 414 proven. 93 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-14 03:32:49,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:37:10,590 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:38:07,636 WARN L286 SmtUtils]: Spent 6.59s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:38:40,035 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_3~0)) (.cse0 ((_ sign_extend 24) c_~var_1_7~0))) (or (bvslt .cse0 .cse1) (not (bvsle (bvshl (bvadd (bvneg .cse1) ((_ zero_extend 24) c_~var_1_2~0)) (bvadd c_~var_1_5~0 c_~var_1_4~0)) (bvadd (_ bv64 32) .cse0))) (let ((.cse9 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse10 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (let ((.cse4 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse15 ((_ sign_extend 24) ~var_1_8~0))) (or (not (bvslt .cse15 (_ bv0 32))) (bvugt c_~var_1_4~0 (bvneg .cse15)))))) (.cse6 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse14 ((_ sign_extend 24) ~var_1_8~0))) (or (bvugt c_~var_1_4~0 .cse14) (bvslt .cse14 (_ bv0 32)))))) (.cse3 (forall ((~var_1_14~0 (_ FloatingPoint 8 24))) (or (let ((.cse13 (fp.add c_currentRoundingMode c_~var_1_12~0 (fp.add c_currentRoundingMode c_~var_1_13~0 ~var_1_14~0)))) (fp.eq .cse13 .cse13)) (not (fp.leq ~var_1_14~0 (fp.neg .cse9))) (not (fp.geq ~var_1_14~0 (fp.neg .cse10)))))) (.cse7 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse12 ((_ sign_extend 24) ~var_1_8~0))) (or (not (bvslt .cse12 (_ bv0 32))) (not (bvugt c_~var_1_4~0 (bvneg .cse12))))))) (.cse2 (forall ((~var_1_8~0 (_ BitVec 8))) (let ((.cse11 ((_ sign_extend 24) ~var_1_8~0))) (or (not (bvugt c_~var_1_4~0 .cse11)) (bvslt .cse11 (_ bv0 32)))))) (.cse5 (forall ((~var_1_14~0 (_ FloatingPoint 8 24))) (or (let ((.cse8 (fp.add c_currentRoundingMode c_~var_1_12~0 (fp.add c_currentRoundingMode c_~var_1_13~0 ~var_1_14~0)))) (fp.eq .cse8 .cse8)) (not (fp.geq ~var_1_14~0 .cse9)) (not (fp.leq ~var_1_14~0 .cse10)))))) (and (or .cse2 .cse3) (or .cse4 .cse5) (or .cse4 .cse3) (or .cse6 .cse3) (or .cse6 .cse5) (or .cse7 .cse3) (or .cse5 .cse7) (or .cse2 .cse5)))))) is different from true [2024-11-14 03:38:40,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:38:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167626213] [2024-11-14 03:38:40,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167626213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:38:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1263122798] [2024-11-14 03:38:40,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:40,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:40,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:38:40,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:38:40,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69f7d5cc-1b9a-45bd-b0e4-d53857a98a2e/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 03:38:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:40,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-14 03:38:40,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:27,532 WARN L286 SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:40:53,879 WARN L286 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:41:23,379 WARN L286 SmtUtils]: Spent 8.15s 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) [2024-11-14 03:41:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 411 proven. 75 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-14 03:41:34,232 INFO L311 TraceCheckSpWp]: Computing backward predicates...