./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.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_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:27:14,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:27:14,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:27:14,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:27:14,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:27:14,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:27:14,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:27:14,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:27:14,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:27:14,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:27:14,909 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:27:14,910 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:27:14,910 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:27:14,910 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:27:14,910 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:27:14,910 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:27:14,910 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:27:14,910 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:27:14,910 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:27:14,911 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:27:14,912 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:27:14,912 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:27:14,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:27:14,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:27:14,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:27:14,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:27:14,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:27:14,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:27:14,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:27:14,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:27:14,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:27:14,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:27:14,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:27:14,915 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:27:14,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:27:14,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:27:14,915 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:27:14,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:27:14,915 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_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 -> 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 [2024-11-14 04:27:15,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:27:15,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:27:15,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:27:15,306 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:27:15,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:27:15,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i Unable to find full path for "g++" [2024-11-14 04:27:17,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:27:18,153 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:27:18,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-14 04:27:18,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data/5557bb6c9/3007bfad1e504209ba5a7384a732982c/FLAG509bc3d3b [2024-11-14 04:27:18,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data/5557bb6c9/3007bfad1e504209ba5a7384a732982c [2024-11-14 04:27:18,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:27:18,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:27:18,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:27:18,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:27:18,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:27:18,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b724104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18, skipping insertion in model container [2024-11-14 04:27:18,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:27:18,470 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_bc492e32-6653-41c0-877a-b82f5f7e48c7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-14 04:27:18,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:27:18,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:27:18,587 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_bc492e32-6653-41c0-877a-b82f5f7e48c7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-14 04:27:18,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:27:18,639 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:27:18,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18 WrapperNode [2024-11-14 04:27:18,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:27:18,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:27:18,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:27:18,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:27:18,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,701 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-11-14 04:27:18,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:27:18,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:27:18,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:27:18,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:27:18,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:27:18,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:27:18,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:27:18,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:27:18,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (1/1) ... [2024-11-14 04:27:18,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:27:18,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:18,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:27:18,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:27:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:27:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:27:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:27:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:27:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:27:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:27:18,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:27:18,993 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:27:19,375 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-14 04:27:19,375 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:27:19,631 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:27:19,631 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:27:19,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:19 BoogieIcfgContainer [2024-11-14 04:27:19,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:27:19,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:27:19,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:27:19,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:27:19,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:27:18" (1/3) ... [2024-11-14 04:27:19,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aefad8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:27:19, skipping insertion in model container [2024-11-14 04:27:19,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:18" (2/3) ... [2024-11-14 04:27:19,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aefad8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:27:19, skipping insertion in model container [2024-11-14 04:27:19,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:19" (3/3) ... [2024-11-14 04:27:19,645 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-14 04:27:19,667 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:27:19,669 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-90.i that has 2 procedures, 35 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:27:19,748 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:27:19,764 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;@118a963e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:27:19,765 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:27:19,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:27:19,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:27:19,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:19,785 INFO L215 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:19,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:19,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:19,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1881002652, now seen corresponding path program 1 times [2024-11-14 04:27:19,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:19,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598404720] [2024-11-14 04:27:19,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:19,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:27:20,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:27:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:27:20,660 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:27:20,663 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:27:20,664 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:27:20,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:27:20,673 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:27:20,738 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:27:20,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:27:20 BoogieIcfgContainer [2024-11-14 04:27:20,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:27:20,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:27:20,744 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:27:20,744 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:27:20,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:19" (3/4) ... [2024-11-14 04:27:20,748 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:27:20,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:27:20,751 INFO L158 Benchmark]: Toolchain (without parser) took 2526.14ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 80.7MB in the end (delta: 26.0MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-11-14 04:27:20,751 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:27:20,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.34ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 94.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:27:20,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.41ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:27:20,753 INFO L158 Benchmark]: Boogie Preprocessor took 55.00ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 91.2MB in the end (delta: 975.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:27:20,753 INFO L158 Benchmark]: RCFGBuilder took 870.57ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 55.7MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 04:27:20,754 INFO L158 Benchmark]: TraceAbstraction took 1108.75ms. Allocated memory is still 142.6MB. Free memory was 55.1MB in the beginning and 81.5MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:27:20,754 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 80.7MB in the end (delta: 785.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:27:20,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.34ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 94.1MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.41ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.00ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 91.2MB in the end (delta: 975.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 870.57ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 55.7MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1108.75ms. Allocated memory is still 142.6MB. Free memory was 55.1MB in the beginning and 81.5MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 80.7MB in the end (delta: 785.7kB). 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 shiftRight at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryDOUBLEComparisonOperation at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 25; [L23] unsigned long int var_1_6 = 2; [L24] unsigned long int var_1_7 = 2762957886; [L25] unsigned long int var_1_8 = 2; [L26] unsigned long int var_1_9 = 1000000000; [L27] unsigned long int var_1_10 = 100; [L28] signed char var_1_11 = 4; [L29] signed char var_1_12 = 8; [L30] signed char var_1_13 = 10; [L31] signed char var_1_14 = 8; [L32] unsigned char var_1_15 = 1; [L33] unsigned char var_1_16 = 0; [L34] double var_1_17 = 32.4; [L35] double var_1_18 = 15.5; [L36] unsigned long int last_1_var_1_6 = 2; [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] CALL updateLastVariables() [L94] last_1_var_1_6 = var_1_6 [L104] RET updateLastVariables() [L105] CALL updateVariables() [L66] var_1_7 = __VERIFIER_nondet_ulong() [L67] CALL assume_abort_if_not(var_1_7 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 >= 2147483647) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2, var_1_9=1000000000] [L68] CALL assume_abort_if_not(var_1_7 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 <= 4294967295) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2, var_1_9=1000000000] [L69] var_1_8 = __VERIFIER_nondet_ulong() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_9=1000000000] [L71] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647, var_1_9=1000000000] [L72] var_1_9 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L74] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L75] var_1_10 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L77] CALL assume_abort_if_not(var_1_10 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_10 <= 4294967294) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L78] var_1_12 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L80] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L81] var_1_13 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L83] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L84] var_1_14 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L86] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L87] var_1_16 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L89] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L90] var_1_18 = __VERIFIER_nondet_double() [L91] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_1=25, var_1_6=2, var_1_7=-2147483649, var_1_8=2147483647] [L105] RET updateVariables() [L106] CALL step() [L40] var_1_15 = var_1_16 [L41] var_1_17 = var_1_18 [L42] COND TRUE \read(var_1_15) [L43] var_1_11 = (((var_1_12 + var_1_13) + var_1_14) - 50) [L45] COND TRUE \read(var_1_15) [L46] var_1_1 = (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))) [L48] signed long int stepLocal_2 = (((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)); [L49] signed long int stepLocal_1 = (((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11)); [L50] unsigned long int stepLocal_0 = var_1_7 - var_1_8; [L51] COND TRUE last_1_var_1_6 != stepLocal_2 [L52] COND FALSE !(stepLocal_0 >= var_1_9) [L59] var_1_6 = var_1_10 [L106] RET step() [L107] CALL, EXPR property() [L97] EXPR (var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8))) [L97] EXPR (last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)) [L97] EXPR ((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10)) [L97] EXPR (last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)) [L97] EXPR (var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8))) [L97-L98] return ((((var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)))) && (var_1_15 ? (var_1_11 == ((signed char) (((var_1_12 + var_1_13) + var_1_14) - 50))) : 1)) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((double) var_1_18)) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=-50, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=-255, var_1_16=-255, var_1_17=2762957895, var_1_18=2762957895, var_1_1=-100, var_1_6=2147483647, var_1_7=-2147483649, var_1_8=2147483647, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=-50, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=-255, var_1_16=-255, var_1_17=2762957895, var_1_18=2762957895, var_1_1=-100, var_1_6=2147483647, var_1_7=-2147483649, var_1_8=2147483647, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 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 04:27:20,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:27:24,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:27:24,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:27:24,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:27:24,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:27:24,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:27:24,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:27:24,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:27:24,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:27:24,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:27:24,255 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:27:24,255 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:27:24,255 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:27:24,256 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:27:24,256 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:27:24,256 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:27:24,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:27:24,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:27:24,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:27:24,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:27:24,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:27:24,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:27:24,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:27:24,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:27:24,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:27:24,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:27:24,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:27:24,258 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:27:24,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:27:24,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:27:24,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:27:24,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:27:24,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:27:24,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:27:24,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:27:24,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:27:24,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:27:24,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:27:24,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:27:24,264 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:27:24,264 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:27:24,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:27:24,265 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:27:24,265 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_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 -> 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 [2024-11-14 04:27:24,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:27:24,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:27:24,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:27:24,694 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:27:24,695 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:27:24,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i Unable to find full path for "g++" [2024-11-14 04:27:27,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:27:27,576 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:27:27,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-14 04:27:27,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data/462472467/ffd03b5d31fd4e5ab89af55b34ea5b49/FLAGd1c21db2d [2024-11-14 04:27:27,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/data/462472467/ffd03b5d31fd4e5ab89af55b34ea5b49 [2024-11-14 04:27:27,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:27:27,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:27:27,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:27:27,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:27:27,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:27:27,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:27:27" (1/1) ... [2024-11-14 04:27:27,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4332f3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:27, skipping insertion in model container [2024-11-14 04:27:27,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:27:27" (1/1) ... [2024-11-14 04:27:27,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:27:27,858 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_bc492e32-6653-41c0-877a-b82f5f7e48c7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-14 04:27:27,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:27:27,971 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:27:27,987 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_bc492e32-6653-41c0-877a-b82f5f7e48c7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-14 04:27:28,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:27:28,071 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:27:28,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28 WrapperNode [2024-11-14 04:27:28,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:27:28,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:27:28,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:27:28,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:27:28,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,152 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-14 04:27:28,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:27:28,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:27:28,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:27:28,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:27:28,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:27:28,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:27:28,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:27:28,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:27:28,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (1/1) ... [2024-11-14 04:27:28,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:27:28,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:28,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:27:28,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:27:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:27:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:27:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:27:28,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:27:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:27:28,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:27:28,411 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:27:28,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:27:28,738 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-14 04:27:28,741 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:27:28,755 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:27:28,755 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:27:28,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:28 BoogieIcfgContainer [2024-11-14 04:27:28,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:27:28,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:27:28,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:27:28,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:27:28,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:27:27" (1/3) ... [2024-11-14 04:27:28,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aeac551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:27:28, skipping insertion in model container [2024-11-14 04:27:28,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:28" (2/3) ... [2024-11-14 04:27:28,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aeac551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:27:28, skipping insertion in model container [2024-11-14 04:27:28,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:28" (3/3) ... [2024-11-14 04:27:28,768 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-14 04:27:28,788 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:27:28,789 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-90.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:27:28,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:27:28,880 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;@40b04ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:27:28,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:27:28,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:27:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:27:28,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:28,896 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:28,897 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:28,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:28,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1528527400, now seen corresponding path program 1 times [2024-11-14 04:27:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:27:28,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465305709] [2024-11-14 04:27:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:28,916 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 04:27:28,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:27:28,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:28,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:29,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:27:29,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-14 04:27:29,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:29,218 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:27:29,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465305709] [2024-11-14 04:27:29,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465305709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:29,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:29,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:29,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205879197] [2024-11-14 04:27:29,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:29,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:27:29,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:27:29,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:27:29,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:27:29,259 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:27:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:29,293 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-11-14 04:27:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:27:29,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2024-11-14 04:27:29,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:29,303 INFO L225 Difference]: With dead ends: 95 [2024-11-14 04:27:29,303 INFO L226 Difference]: Without dead ends: 47 [2024-11-14 04:27:29,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 04:27:29,310 INFO L432 NwaCegarLoop]: 68 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, 68 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 04:27:29,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:27:29,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-14 04:27:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-14 04:27:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:27:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-14 04:27:29,356 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 107 [2024-11-14 04:27:29,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:29,356 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-14 04:27:29,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:27:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-14 04:27:29,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:27:29,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:29,361 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:29,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:27:29,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:29,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:29,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:29,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2051808026, now seen corresponding path program 1 times [2024-11-14 04:27:29,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:27:29,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794378141] [2024-11-14 04:27:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:29,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:27:29,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:27:29,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:29,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:29,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 04:27:29,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:27:36,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:36,372 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:27:36,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794378141] [2024-11-14 04:27:36,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794378141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:36,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-14 04:27:36,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607401641] [2024-11-14 04:27:36,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:36,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:27:36,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:27:36,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:27:36,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-14 04:27:36,377 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:39,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:39,713 INFO L93 Difference]: Finished difference Result 128 states and 176 transitions. [2024-11-14 04:27:39,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 04:27:39,715 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-11-14 04:27:39,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:39,718 INFO L225 Difference]: With dead ends: 128 [2024-11-14 04:27:39,718 INFO L226 Difference]: Without dead ends: 126 [2024-11-14 04:27:39,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:27:39,720 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 180 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:39,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 389 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 04:27:39,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-14 04:27:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 90. [2024-11-14 04:27:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 52 states have internal predecessors, (61), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:27:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-14 04:27:39,747 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 107 [2024-11-14 04:27:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:39,748 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-14 04:27:39,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-14 04:27:39,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:27:39,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:39,750 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:39,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:39,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:39,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:39,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:39,955 INFO L85 PathProgramCache]: Analyzing trace with hash -276800664, now seen corresponding path program 1 times [2024-11-14 04:27:39,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:27:39,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861685027] [2024-11-14 04:27:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:39,956 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 04:27:39,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:27:39,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:39,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 04:27:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:40,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:27:40,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-14 04:27:40,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:27:40,524 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:27:40,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861685027] [2024-11-14 04:27:40,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861685027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:27:40,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2047122536] [2024-11-14 04:27:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:40,524 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:27:40,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:27:40,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:27:40,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 04:27:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:40,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 04:27:40,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:27:40,766 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:40,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2047122536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:40,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:27:40,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 6] total 12 [2024-11-14 04:27:40,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167582050] [2024-11-14 04:27:40,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:40,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:40,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:27:40,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:40,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:27:40,771 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:40,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:40,855 INFO L93 Difference]: Finished difference Result 177 states and 257 transitions. [2024-11-14 04:27:40,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:40,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-11-14 04:27:40,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:40,859 INFO L225 Difference]: With dead ends: 177 [2024-11-14 04:27:40,859 INFO L226 Difference]: Without dead ends: 133 [2024-11-14 04:27:40,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:27:40,865 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 63 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:40,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 125 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:27:40,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-14 04:27:40,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 91. [2024-11-14 04:27:40,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:27:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2024-11-14 04:27:40,913 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 107 [2024-11-14 04:27:40,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:40,913 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2024-11-14 04:27:40,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2024-11-14 04:27:40,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:27:40,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:40,915 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:40,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-14 04:27:41,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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)] Ended with exit code 0 [2024-11-14 04:27:41,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:41,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:41,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:41,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1433812644, now seen corresponding path program 1 times [2024-11-14 04:27:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:27:41,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548862527] [2024-11-14 04:27:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:41,318 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 04:27:41,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:27:41,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:41,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:41,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:27:41,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-14 04:27:41,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:41,904 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:27:41,904 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:27:41,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548862527] [2024-11-14 04:27:41,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548862527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:27:41,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [519030025] [2024-11-14 04:27:41,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:41,905 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:27:41,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:27:41,908 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:27:41,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 04:27:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:42,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 04:27:42,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:27:42,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:42,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [519030025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:42,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:27:42,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 6] total 13 [2024-11-14 04:27:42,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584381680] [2024-11-14 04:27:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:42,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:42,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:27:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:42,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:27:42,269 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:42,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:42,375 INFO L93 Difference]: Finished difference Result 178 states and 256 transitions. [2024-11-14 04:27:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:42,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-11-14 04:27:42,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:42,379 INFO L225 Difference]: With dead ends: 178 [2024-11-14 04:27:42,379 INFO L226 Difference]: Without dead ends: 133 [2024-11-14 04:27:42,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:27:42,381 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 61 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:42,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 186 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:27:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-14 04:27:42,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 91. [2024-11-14 04:27:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 53 states have (on average 1.1320754716981132) internal successors, (60), 53 states have internal predecessors, (60), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:27:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2024-11-14 04:27:42,405 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 107 [2024-11-14 04:27:42,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:42,408 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 128 transitions. [2024-11-14 04:27:42,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:42,409 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 128 transitions. [2024-11-14 04:27:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:27:42,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:42,411 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:42,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:27:42,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 04:27:42,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:27:42,812 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:42,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:42,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1086147290, now seen corresponding path program 1 times [2024-11-14 04:27:42,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:27:42,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084117285] [2024-11-14 04:27:42,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:42,815 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 04:27:42,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:27:42,817 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:42,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-14 04:27:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:42,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:27:42,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:43,157 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-14 04:27:43,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:27:43,394 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:27:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084117285] [2024-11-14 04:27:43,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084117285] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:27:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1206686835] [2024-11-14 04:27:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:43,395 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:27:43,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:27:43,398 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:27:43,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-14 04:27:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:43,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:27:43,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:27:44,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:44,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1206686835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:44,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:27:44,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 6] total 15 [2024-11-14 04:27:44,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839554814] [2024-11-14 04:27:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:44,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:27:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:27:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:27:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:27:44,619 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:44,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:44,932 INFO L93 Difference]: Finished difference Result 148 states and 208 transitions. [2024-11-14 04:27:44,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:27:44,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-11-14 04:27:44,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:44,935 INFO L225 Difference]: With dead ends: 148 [2024-11-14 04:27:44,935 INFO L226 Difference]: Without dead ends: 103 [2024-11-14 04:27:44,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:27:44,937 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 33 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:44,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 231 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:27:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-14 04:27:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2024-11-14 04:27:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 56 states have (on average 1.125) internal successors, (63), 56 states have internal predecessors, (63), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:27:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2024-11-14 04:27:44,967 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 107 [2024-11-14 04:27:44,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:44,968 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2024-11-14 04:27:44,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:27:44,968 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2024-11-14 04:27:44,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 04:27:44,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:44,970 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:44,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-14 04:27:45,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-14 04:27:45,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:45,371 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:45,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash 412972468, now seen corresponding path program 1 times [2024-11-14 04:27:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:27:45,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503885478] [2024-11-14 04:27:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:45,373 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 04:27:45,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:27:45,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:27:45,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (10)] Waiting until timeout for monitored process [2024-11-14 04:27:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:45,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 04:27:45,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 217 proven. 36 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-14 04:27:50,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:28:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:28:04,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:28:04,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503885478] [2024-11-14 04:28:04,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503885478] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:28:04,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:28:04,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16] total 28 [2024-11-14 04:28:04,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378389226] [2024-11-14 04:28:04,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:04,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:28:04,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:28:04,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:28:04,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:28:04,040 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:28:07,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:07,639 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2024-11-14 04:28:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:28:07,641 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-14 04:28:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:07,643 INFO L225 Difference]: With dead ends: 113 [2024-11-14 04:28:07,643 INFO L226 Difference]: Without dead ends: 111 [2024-11-14 04:28:07,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=188, Invalid=804, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:28:07,645 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 138 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:07,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 358 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 04:28:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-14 04:28:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2024-11-14 04:28:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 65 states have internal predecessors, (72), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:28:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 140 transitions. [2024-11-14 04:28:07,673 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 140 transitions. Word has length 108 [2024-11-14 04:28:07,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:07,674 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 140 transitions. [2024-11-14 04:28:07,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:28:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 140 transitions. [2024-11-14 04:28:07,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 04:28:07,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:07,677 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:07,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (10)] Ended with exit code 0 [2024-11-14 04:28:07,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:28:07,881 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:28:07,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:07,882 INFO L85 PathProgramCache]: Analyzing trace with hash -319239203, now seen corresponding path program 1 times [2024-11-14 04:28:07,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:28:07,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319273825] [2024-11-14 04:28:07,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:07,883 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 04:28:07,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:28:07,885 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:28:07,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (11)] Waiting until timeout for monitored process [2024-11-14 04:28:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:08,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 04:28:08,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 217 proven. 36 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-14 04:28:13,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:28:33,339 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:28:33,339 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:28:33,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319273825] [2024-11-14 04:28:33,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319273825] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:28:33,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:28:33,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16] total 28 [2024-11-14 04:28:33,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020990591] [2024-11-14 04:28:33,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:33,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:28:33,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:28:33,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:28:33,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:28:33,341 INFO L87 Difference]: Start difference. First operand 106 states and 140 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:28:38,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:38,147 INFO L93 Difference]: Finished difference Result 116 states and 150 transitions. [2024-11-14 04:28:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:28:38,148 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-14 04:28:38,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:38,150 INFO L225 Difference]: With dead ends: 116 [2024-11-14 04:28:38,150 INFO L226 Difference]: Without dead ends: 114 [2024-11-14 04:28:38,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2024-11-14 04:28:38,152 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 182 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:38,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 313 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 04:28:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-14 04:28:38,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 103. [2024-11-14 04:28:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 62 states have (on average 1.096774193548387) internal successors, (68), 62 states have internal predecessors, (68), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:28:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 136 transitions. [2024-11-14 04:28:38,207 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 136 transitions. Word has length 109 [2024-11-14 04:28:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:38,208 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 136 transitions. [2024-11-14 04:28:38,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:28:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 136 transitions. [2024-11-14 04:28:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 04:28:38,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:38,214 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:38,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (11)] Ended with exit code 0 [2024-11-14 04:28:38,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:28:38,415 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:28:38,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:38,415 INFO L85 PathProgramCache]: Analyzing trace with hash -321086245, now seen corresponding path program 1 times [2024-11-14 04:28:38,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:28:38,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160502547] [2024-11-14 04:28:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:38,416 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 04:28:38,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:28:38,418 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:28:38,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (12)] Waiting until timeout for monitored process [2024-11-14 04:28:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:38,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 04:28:38,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 441 proven. 54 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-14 04:28:46,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:29:00,720 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:00,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160502547] [2024-11-14 04:29:00,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160502547] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:29:00,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:29:00,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [35] total 48 [2024-11-14 04:29:00,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156056938] [2024-11-14 04:29:00,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:00,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:29:00,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:00,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:29:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=1895, Unknown=0, NotChecked=0, Total=2256 [2024-11-14 04:29:00,723 INFO L87 Difference]: Start difference. First operand 103 states and 136 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:29:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:08,988 INFO L93 Difference]: Finished difference Result 140 states and 175 transitions. [2024-11-14 04:29:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:29:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-14 04:29:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:08,992 INFO L225 Difference]: With dead ends: 140 [2024-11-14 04:29:08,992 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 04:29:08,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=446, Invalid=2416, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 04:29:08,994 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 186 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:08,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 206 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-14 04:29:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 04:29:09,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 115. [2024-11-14 04:29:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.125) internal successors, (81), 72 states have internal predecessors, (81), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:29:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 149 transitions. [2024-11-14 04:29:09,048 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 149 transitions. Word has length 109 [2024-11-14 04:29:09,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:09,049 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 149 transitions. [2024-11-14 04:29:09,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:29:09,050 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 149 transitions. [2024-11-14 04:29:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 04:29:09,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:09,052 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:09,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (12)] Forceful destruction successful, exit code 0 [2024-11-14 04:29:09,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:29:09,253 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:29:09,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash -34054885, now seen corresponding path program 1 times [2024-11-14 04:29:09,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:09,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596570686] [2024-11-14 04:29:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:09,254 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 04:29:09,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:09,256 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 04:29:09,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (13)] Waiting until timeout for monitored process [2024-11-14 04:29:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:09,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:29:09,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-14 04:29:09,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:09,704 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:29:09,705 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:09,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596570686] [2024-11-14 04:29:09,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596570686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:09,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [627441960] [2024-11-14 04:29:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:09,705 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:09,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:29:09,707 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:29:09,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 04:29:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:10,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:29:10,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:10,259 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 156 proven. 6 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-11-14 04:29:10,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:10,421 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:29:10,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [627441960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:10,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736013457] [2024-11-14 04:29:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:10,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:10,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:10,424 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:10,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 04:29:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:10,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:29:10,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 156 proven. 6 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-11-14 04:29:10,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:29:10,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736013457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:10,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:29:10,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2024-11-14 04:29:10,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024826575] [2024-11-14 04:29:10,757 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:29:10,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 04:29:10,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:10,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 04:29:10,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:29:10,759 INFO L87 Difference]: Start difference. First operand 115 states and 149 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 04:29:11,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:11,465 INFO L93 Difference]: Finished difference Result 189 states and 237 transitions. [2024-11-14 04:29:11,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:29:11,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 109 [2024-11-14 04:29:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:11,466 INFO L225 Difference]: With dead ends: 189 [2024-11-14 04:29:11,466 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:29:11,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 635 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:29:11,468 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 112 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:11,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 151 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:29:11,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:29:11,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:29:11,470 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 04:29:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:29:11,470 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2024-11-14 04:29:11,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:11,470 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:29:11,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 04:29:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:29:11,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:29:11,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:29:11,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 04:29:11,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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 (13)] Ended with exit code 0 [2024-11-14 04:29:11,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-14 04:29:12,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/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=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:12,078 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:12,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:29:23,221 WARN L286 SmtUtils]: Spent 7.65s on a formula simplification. DAG size of input: 341 DAG size of output: 14 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-14 04:29:32,333 WARN L286 SmtUtils]: Spent 8.78s on a formula simplification. DAG size of input: 341 DAG size of output: 19 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-14 04:29:53,335 WARN L286 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 283 DAG size of output: 103 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-14 04:29:55,322 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:29:55,340 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-14 04:29:55,340 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-14 04:29:55,341 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:29:55,341 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-14 04:29:55,341 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-14 04:29:55,341 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:29:55,341 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 04:29:55,342 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~stepLocal_1~0 [2024-11-14 04:29:55,342 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 04:29:55,342 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:29:55,342 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:29:55,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:29:55,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:29:55,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:29:55,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 04:29:55,343 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 04:29:55,352 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:29:55,356 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-14 04:29:55,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:29:55 BoogieIcfgContainer [2024-11-14 04:29:55,362 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:29:55,363 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:29:55,363 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:29:55,363 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:29:55,364 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:28" (3/4) ... [2024-11-14 04:29:55,367 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:29:55,374 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 04:29:55,384 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-14 04:29:55,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 04:29:55,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:29:55,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:29:55,511 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:29:55,511 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:29:55,512 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:29:55,513 INFO L158 Benchmark]: Toolchain (without parser) took 147900.29ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 91.7MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2024-11-14 04:29:55,513 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:55,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.10ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 78.5MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:29:55,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.46ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:29:55,516 INFO L158 Benchmark]: Boogie Preprocessor took 57.01ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:55,516 INFO L158 Benchmark]: RCFGBuilder took 545.06ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 60.3MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:29:55,517 INFO L158 Benchmark]: TraceAbstraction took 146603.00ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 59.7MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 716.9MB. Max. memory is 16.1GB. [2024-11-14 04:29:55,518 INFO L158 Benchmark]: Witness Printer took 148.96ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:29:55,520 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.10ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 78.5MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.46ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.01ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 545.06ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 60.3MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 146603.00ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 59.7MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 716.9MB. Max. memory is 16.1GB. * Witness Printer took 148.96ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~stepLocal_1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - 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: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 * 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, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 103.2s, OverallIterations: 9, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 970 SdHoareTripleChecker+Valid, 12.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 955 mSDsluCounter, 2027 SdHoareTripleChecker+Invalid, 11.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1353 mSDsCounter, 380 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1608 IncrementalHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 380 mSolverCounterUnsat, 674 mSDtfsCounter, 1608 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2505 GetRequests, 2302 SyntacticMatches, 8 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1933 ImplicationChecksByTransitivity, 31.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=8, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 168 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 75.6s InterpolantComputationTime, 1509 NumberOfCodeBlocks, 1509 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2460 ConstructedInterpolants, 17 QuantifiedInterpolants, 14936 SizeOfPredicates, 94 NumberOfNonLiveVariables, 2475 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 12314/12512 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: 103]: Loop Invariant Derived loop invariant: (((((!((2 * var_1_11) < var_1_11) || (var_1_16 == var_1_15)) && (var_1_16 <= 1)) && ((var_1_16 == var_1_15) || ((2 * var_1_11) < var_1_11))) && (var_1_15 >= 1)) || (((((var_1_15 <= 1) && (2 == last_1_var_1_6)) && (4 == var_1_11)) && (var_1_6 == 2)) && (0 != var_1_15))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (((var_1_15 <= 1) && (var_1_15 >= 1)) || ((((var_1_15 <= 1) && (var_1_16 >= 1)) && (var_1_16 <= 1)) && (var_1_15 >= 1))) Ensures: (((((var_1_15 <= 1) && (var_1_15 >= 1)) || ((((var_1_15 <= 1) && (var_1_16 >= 1)) && (var_1_16 <= 1)) && (var_1_15 >= 1))) && (0 != cond)) && ((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (var_1_18 == \old(var_1_18))) && (last_1_var_1_6 == \old(last_1_var_1_6)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:29:55,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc492e32-6653-41c0-877a-b82f5f7e48c7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE