./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.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_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/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_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/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_d8b7babf-dd31-4a8f-8466-775d121482e1/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 a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:21:54,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:21:54,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:21:54,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:21:54,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:21:54,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:21:54,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:21:54,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:21:54,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:21:54,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:21:54,905 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:21:54,905 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:21:54,906 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:21:54,906 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:21:54,906 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:21:54,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:21:54,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:21:54,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:21:54,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:21:54,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:21:54,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:21:54,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:21:54,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:21:54,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:21:54,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:21:54,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:21:54,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:21:54,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:21:54,911 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:21:54,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:21:54,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:21:54,911 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:21:54,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:21:54,911 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_d8b7babf-dd31-4a8f-8466-775d121482e1/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 -> a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f [2024-11-14 04:21:55,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:21:55,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:21:55,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:21:55,245 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:21:55,246 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:21:55,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i Unable to find full path for "g++" [2024-11-14 04:21:57,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:21:57,683 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:21:57,684 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2024-11-14 04:21:57,691 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data/56b44e34a/cfbf28a7aa7346b69a41d22beda597f5/FLAG2e3189bc5 [2024-11-14 04:21:57,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data/56b44e34a/cfbf28a7aa7346b69a41d22beda597f5 [2024-11-14 04:21:57,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:21:57,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:21:57,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:21:57,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:21:57,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:21:57,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:21:57" (1/1) ... [2024-11-14 04:21:57,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a163ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:57, skipping insertion in model container [2024-11-14 04:21:57,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:21:57" (1/1) ... [2024-11-14 04:21:57,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:21:57,932 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_d8b7babf-dd31-4a8f-8466-775d121482e1/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-14 04:21:57,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:21:57,995 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:21:58,008 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_d8b7babf-dd31-4a8f-8466-775d121482e1/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-14 04:21:58,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:21:58,050 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:21:58,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58 WrapperNode [2024-11-14 04:21:58,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:21:58,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:21:58,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:21:58,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:21:58,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,096 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 63 [2024-11-14 04:21:58,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:21:58,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:21:58,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:21:58,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:21:58,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:21:58,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:21:58,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:21:58,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:21:58,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (1/1) ... [2024-11-14 04:21:58,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:21:58,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:21:58,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:21:58,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:21:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:21:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:21:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:21:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:21:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:21:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:21:58,268 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:21:58,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:21:58,425 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-14 04:21:58,426 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:21:58,516 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:21:58,516 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:21:58,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:58 BoogieIcfgContainer [2024-11-14 04:21:58,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:21:58,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:21:58,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:21:58,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:21:58,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:21:57" (1/3) ... [2024-11-14 04:21:58,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de381c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:21:58, skipping insertion in model container [2024-11-14 04:21:58,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:58" (2/3) ... [2024-11-14 04:21:58,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de381c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:21:58, skipping insertion in model container [2024-11-14 04:21:58,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:58" (3/3) ... [2024-11-14 04:21:58,526 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-70.i [2024-11-14 04:21:58,542 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:21:58,544 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-70.i that has 2 procedures, 19 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:21:58,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:21:58,610 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;@2605aa4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:21:58,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:21:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:21:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:21:58,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:21:58,625 INFO L215 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:21:58,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:21:58,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:21:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash 325639318, now seen corresponding path program 1 times [2024-11-14 04:21:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:21:58,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46754861] [2024-11-14 04:21:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:21:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:21:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:21:58,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:21:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:21:58,906 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:21:58,908 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:21:58,910 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:21:58,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:21:58,918 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:21:58,962 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:21:58,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:21:58 BoogieIcfgContainer [2024-11-14 04:21:58,969 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:21:58,969 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:21:58,969 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:21:58,970 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:21:58,972 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:58" (3/4) ... [2024-11-14 04:21:58,974 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:21:58,975 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:21:58,976 INFO L158 Benchmark]: Toolchain (without parser) took 1266.19ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 47.8MB in the end (delta: 45.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 04:21:58,977 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:21:58,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.28ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 81.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:21:58,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.53ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:21:58,981 INFO L158 Benchmark]: Boogie Preprocessor took 38.11ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.3MB in the end (delta: 943.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:21:58,981 INFO L158 Benchmark]: RCFGBuilder took 378.62ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 65.0MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:21:58,982 INFO L158 Benchmark]: TraceAbstraction took 449.55ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 48.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:21:58,982 INFO L158 Benchmark]: Witness Printer took 5.80ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 47.8MB in the end (delta: 252.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:21:58,987 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.28ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 81.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.53ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.11ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.3MB in the end (delta: 943.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 378.62ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 65.0MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 449.55ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 48.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.80ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 47.8MB in the end (delta: 252.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 53, overapproximation of someBinaryFLOATComparisonOperation at line 34, overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of someUnaryFLOAToperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 9.5; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] float var_1_4 = 31.2; [L26] float var_1_5 = 15.639; [L62] isInitial = 1 [L63] FCALL initially() [L64] COND TRUE 1 [L65] FCALL updateLastVariables() [L66] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_uchar() [L45] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L46] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L47] var_1_3 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_4=156/5, var_1_5=15639/1000] [L49] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L50] var_1_4 = __VERIFIER_nondet_float() [L51] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_5=15639/1000] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_5=15639/1000] [L52] var_1_5 = __VERIFIER_nondet_float() [L53] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1] [L66] RET updateVariables() [L67] CALL step() [L30] unsigned char stepLocal_0 = var_1_2; [L31] COND TRUE stepLocal_0 && var_1_3 [L32] var_1_1 = (var_1_4 - var_1_5) [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (var_1_2 && var_1_3) ? (var_1_1 == ((float) (var_1_4 - var_1_5))) : ((var_1_4 >= var_1_5) ? (var_1_3 ? (var_1_1 == ((float) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) : (var_1_1 == ((float) var_1_4))) : 1) ; [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=19/2, var_1_5=19/2] [L19] reach_error() VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=19/2, var_1_5=19/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 6, 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=19occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 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 04:21:59,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/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_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/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_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/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_d8b7babf-dd31-4a8f-8466-775d121482e1/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 a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:22:01,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:22:02,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:22:02,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:22:02,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:22:02,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:22:02,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:22:02,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:22:02,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:22:02,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:22:02,105 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:22:02,105 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:22:02,105 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:22:02,105 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:22:02,105 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:22:02,105 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:22:02,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:22:02,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:22:02,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:22:02,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:22:02,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:22:02,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:22:02,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:22:02,107 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:22:02,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:22:02,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:22:02,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:22:02,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:22:02,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:22:02,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:22:02,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:22:02,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:22:02,108 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:22:02,109 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:22:02,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:22:02,109 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:22:02,109 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_d8b7babf-dd31-4a8f-8466-775d121482e1/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 -> a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f [2024-11-14 04:22:02,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:22:02,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:22:02,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:22:02,486 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:22:02,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:22:02,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i Unable to find full path for "g++" [2024-11-14 04:22:04,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:22:04,842 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:22:04,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2024-11-14 04:22:04,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data/7a1ce11ba/fa09fd000d9f4cc0b6ff8174a66c38fc/FLAG8ce7adb5b [2024-11-14 04:22:05,196 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/data/7a1ce11ba/fa09fd000d9f4cc0b6ff8174a66c38fc [2024-11-14 04:22:05,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:22:05,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:22:05,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:22:05,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:22:05,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:22:05,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1edd90f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05, skipping insertion in model container [2024-11-14 04:22:05,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:22:05,406 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_d8b7babf-dd31-4a8f-8466-775d121482e1/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-14 04:22:05,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:22:05,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:22:05,489 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_d8b7babf-dd31-4a8f-8466-775d121482e1/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2024-11-14 04:22:05,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:22:05,531 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:22:05,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05 WrapperNode [2024-11-14 04:22:05,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:22:05,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:22:05,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:22:05,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:22:05,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,592 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 63 [2024-11-14 04:22:05,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:22:05,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:22:05,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:22:05,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:22:05,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:22:05,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:22:05,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:22:05,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:22:05,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (1/1) ... [2024-11-14 04:22:05,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:22:05,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:22:05,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:22:05,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:22:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:22:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:22:05,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:22:05,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:22:05,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:22:05,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:22:05,822 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:22:05,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:22:06,108 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-14 04:22:06,108 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:22:06,127 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:22:06,127 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:22:06,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:22:06 BoogieIcfgContainer [2024-11-14 04:22:06,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:22:06,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:22:06,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:22:06,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:22:06,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:22:05" (1/3) ... [2024-11-14 04:22:06,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4f3024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:22:06, skipping insertion in model container [2024-11-14 04:22:06,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:05" (2/3) ... [2024-11-14 04:22:06,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4f3024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:22:06, skipping insertion in model container [2024-11-14 04:22:06,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:22:06" (3/3) ... [2024-11-14 04:22:06,141 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-70.i [2024-11-14 04:22:06,159 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:22:06,161 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-70.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:22:06,233 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:22:06,246 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;@19ac9306, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:22:06,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:22:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:22:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 04:22:06,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:06,261 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:06,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:06,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:06,267 INFO L85 PathProgramCache]: Analyzing trace with hash -388117335, now seen corresponding path program 1 times [2024-11-14 04:22:06,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:06,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533368024] [2024-11-14 04:22:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:06,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:22:06,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:06,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:22:06,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 04:22:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:06,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:22:06,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 04:22:06,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:06,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:06,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533368024] [2024-11-14 04:22:06,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533368024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:06,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:06,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:22:06,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682454473] [2024-11-14 04:22:06,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:06,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:22:06,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:06,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:22:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:22:06,566 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:22:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:06,589 INFO L93 Difference]: Finished difference Result 57 states and 86 transitions. [2024-11-14 04:22:06,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:22:06,591 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-14 04:22:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:06,597 INFO L225 Difference]: With dead ends: 57 [2024-11-14 04:22:06,598 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 04:22:06,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:22:06,605 INFO L432 NwaCegarLoop]: 36 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, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:06,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:22:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 04:22:06,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-14 04:22:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:22:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-11-14 04:22:06,641 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 44 [2024-11-14 04:22:06,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:06,641 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-11-14 04:22:06,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:22:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-14 04:22:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 04:22:06,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:06,644 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:06,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 04:22:06,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:22:06,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:06,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:06,847 INFO L85 PathProgramCache]: Analyzing trace with hash 431109933, now seen corresponding path program 1 times [2024-11-14 04:22:06,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:06,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327149369] [2024-11-14 04:22:06,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:06,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:22:06,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:06,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:22:06,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 04:22:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:07,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:22:07,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 04:22:24,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:22:48,165 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:48,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327149369] [2024-11-14 04:22:48,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327149369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:22:48,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [277304269] [2024-11-14 04:22:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:48,167 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:22:48,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:22:48,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:22:48,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:22:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:48,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:22:48,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:23:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 04:23:07,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:23:20,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [277304269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:23:20,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335564412] [2024-11-14 04:23:20,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:20,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:23:20,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:23:20,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:23:20,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:23:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:20,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:23:20,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:23:33,088 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 04:23:33,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:23:44,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335564412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:23:44,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:23:44,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 21 [2024-11-14 04:23:44,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364263801] [2024-11-14 04:23:44,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:23:44,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 04:23:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:23:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 04:23:44,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:23:44,998 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 04:23:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:23:53,660 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2024-11-14 04:23:53,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 04:23:53,664 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 44 [2024-11-14 04:23:53,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:23:53,665 INFO L225 Difference]: With dead ends: 52 [2024-11-14 04:23:53,665 INFO L226 Difference]: Without dead ends: 50 [2024-11-14 04:23:53,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=256, Invalid=1004, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 04:23:53,668 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 66 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:23:53,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 114 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 04:23:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-14 04:23:53,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2024-11-14 04:23:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:23:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2024-11-14 04:23:53,680 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 44 [2024-11-14 04:23:53,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:23:53,680 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2024-11-14 04:23:53,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 04:23:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2024-11-14 04:23:53,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 04:23:53,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:53,682 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:23:53,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 04:23:53,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 04:23:54,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:23:54,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:23:54,284 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:54,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash 534854818, now seen corresponding path program 1 times [2024-11-14 04:23:54,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:23:54,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134563814] [2024-11-14 04:23:54,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:54,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:23:54,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:23:54,287 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:23:54,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 04:23:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:54,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:23:54,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:24:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 04:24:08,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:24:58,408 WARN L286 SmtUtils]: Spent 28.14s on a formula simplification. DAG size of input: 127 DAG size of output: 124 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:24:59,795 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 04:24:59,795 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:24:59,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134563814] [2024-11-14 04:24:59,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134563814] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:24:59,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:24:59,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-14 04:24:59,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631943934] [2024-11-14 04:24:59,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:24:59,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:24:59,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:24:59,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:24:59,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:24:59,800 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 04:25:18,425 WARN L286 SmtUtils]: Spent 9.33s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:25:29,059 WARN L286 SmtUtils]: Spent 9.47s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:25:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:30,232 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2024-11-14 04:25:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:25:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2024-11-14 04:25:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:30,235 INFO L225 Difference]: With dead ends: 55 [2024-11-14 04:25:30,235 INFO L226 Difference]: Without dead ends: 53 [2024-11-14 04:25:30,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 54.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:25:30,236 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 18 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:30,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 163 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-14 04:25:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-14 04:25:30,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2024-11-14 04:25:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:25:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2024-11-14 04:25:30,245 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 45 [2024-11-14 04:25:30,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:30,246 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2024-11-14 04:25:30,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 04:25:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2024-11-14 04:25:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 04:25:30,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:30,247 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:30,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 04:25:30,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:25:30,448 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:25:30,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:30,448 INFO L85 PathProgramCache]: Analyzing trace with hash -834930158, now seen corresponding path program 1 times [2024-11-14 04:25:30,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:25:30,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502529990] [2024-11-14 04:25:30,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:30,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:25:30,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:25:30,451 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:25:30,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/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 (7)] Waiting until timeout for monitored process [2024-11-14 04:25:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:30,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 04:25:30,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 04:25:38,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:25:51,107 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 04:25:51,107 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:25:51,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502529990] [2024-11-14 04:25:51,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502529990] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:25:51,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:25:51,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-14 04:25:51,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83062929] [2024-11-14 04:25:51,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:51,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:25:51,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:25:51,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:25:51,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:25:51,109 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 04:25:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:58,798 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2024-11-14 04:25:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:25:58,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2024-11-14 04:25:58,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:58,801 INFO L225 Difference]: With dead ends: 52 [2024-11-14 04:25:58,801 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:25:58,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:25:58,803 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:58,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 147 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 04:25:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:25:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:25:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:25:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:25:58,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2024-11-14 04:25:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:58,804 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:25:58,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 04:25:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:25:58,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:25:58,808 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:25:58,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/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 (7)] Ended with exit code 0 [2024-11-14 04:25:59,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:25:59,011 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-14 04:25:59,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:26:04,680 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:26:04,693 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:26:04,702 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,702 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:26:04,702 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:26:04,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:26:04,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:26:04,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:26:04,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:26:04 BoogieIcfgContainer [2024-11-14 04:26:04,712 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:26:04,713 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:26:04,713 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:26:04,713 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:26:04,714 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:22:06" (3/4) ... [2024-11-14 04:26:04,717 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:26:04,722 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 04:26:04,728 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-14 04:26:04,728 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 04:26:04,728 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:26:04,729 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:26:04,814 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:26:04,814 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:26:04,814 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:26:04,815 INFO L158 Benchmark]: Toolchain (without parser) took 239616.06ms. Allocated memory was 83.9MB in the beginning and 578.8MB in the end (delta: 494.9MB). Free memory was 61.1MB in the beginning and 375.4MB in the end (delta: -314.3MB). Peak memory consumption was 175.6MB. Max. memory is 16.1GB. [2024-11-14 04:26:04,815 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:26:04,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.74ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 49.0MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:26:04,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.82ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 47.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:26:04,816 INFO L158 Benchmark]: Boogie Preprocessor took 46.20ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 46.5MB in the end (delta: 905.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:26:04,817 INFO L158 Benchmark]: RCFGBuilder took 486.49ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 35.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:26:04,817 INFO L158 Benchmark]: TraceAbstraction took 238581.11ms. Allocated memory was 83.9MB in the beginning and 578.8MB in the end (delta: 494.9MB). Free memory was 34.5MB in the beginning and 379.5MB in the end (delta: -344.9MB). Peak memory consumption was 150.4MB. Max. memory is 16.1GB. [2024-11-14 04:26:04,817 INFO L158 Benchmark]: Witness Printer took 101.22ms. Allocated memory is still 578.8MB. Free memory was 379.5MB in the beginning and 375.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:26:04,819 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.74ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 49.0MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.82ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 47.4MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.20ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 46.5MB in the end (delta: 905.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 486.49ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 35.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 238581.11ms. Allocated memory was 83.9MB in the beginning and 578.8MB in the end (delta: 494.9MB). Free memory was 34.5MB in the beginning and 379.5MB in the end (delta: -344.9MB). Peak memory consumption was 150.4MB. Max. memory is 16.1GB. * Witness Printer took 101.22ms. Allocated memory is still 578.8MB. Free memory was 379.5MB in the beginning and 375.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 232.8s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 46.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 13.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 460 SdHoareTripleChecker+Invalid, 13.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 347 IncrementalHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 125 mSDtfsCounter, 347 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 387 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 90.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=2, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 17 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 183.1s InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 350 ConstructedInterpolants, 2 QuantifiedInterpolants, 2473 SizeOfPredicates, 40 NumberOfNonLiveVariables, 468 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 432/480 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (var_1_2 <= 1) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && ((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:26:05,034 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-14 04:26:05,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b7babf-dd31-4a8f-8466-775d121482e1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE