./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-81.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_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/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_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/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_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/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 cdfe6b75857728999b41684b7c331e5339e5672a24edb1faba7c7b16ac6df456 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:35:20,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:35:20,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:35:20,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:35:20,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:35:20,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:35:20,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:35:20,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:35:20,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:35:20,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:35:20,468 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:35:20,468 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:35:20,468 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:35:20,468 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:35:20,469 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:35:20,469 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:35:20,469 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:35:20,469 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:35:20,469 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:35:20,469 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:35:20,469 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:35:20,469 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:35:20,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:35:20,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:35:20,470 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:35:20,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:35:20,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:35:20,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:35:20,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:35:20,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:35:20,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:35:20,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:35:20,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:35:20,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:35:20,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:35:20,472 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:35:20,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:35:20,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:35:20,472 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:35:20,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:35:20,472 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_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/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 -> cdfe6b75857728999b41684b7c331e5339e5672a24edb1faba7c7b16ac6df456 [2024-11-13 23:35:20,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:35:20,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:35:20,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:35:20,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:35:20,821 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:35:20,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-81.i Unable to find full path for "g++" [2024-11-13 23:35:22,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:35:23,035 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:35:23,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-81.i [2024-11-13 23:35:23,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/data/a32475f12/8e565d8a084848ee844042e83b156d6f/FLAG9eb48d310 [2024-11-13 23:35:23,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/data/a32475f12/8e565d8a084848ee844042e83b156d6f [2024-11-13 23:35:23,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:35:23,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:35:23,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:35:23,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:35:23,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:35:23,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1211849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23, skipping insertion in model container [2024-11-13 23:35:23,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:35:23,482 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_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-81.i[915,928] [2024-11-13 23:35:23,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:35:23,564 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:35:23,576 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_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-81.i[915,928] [2024-11-13 23:35:23,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:35:23,636 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:35:23,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23 WrapperNode [2024-11-13 23:35:23,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:35:23,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:35:23,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:35:23,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:35:23,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,729 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2024-11-13 23:35:23,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:35:23,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:35:23,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:35:23,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:35:23,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:35:23,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:35:23,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:35:23,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:35:23,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (1/1) ... [2024-11-13 23:35:23,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:35:23,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:23,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:35:23,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:35:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:35:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:35:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:35:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:35:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:35:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:35:23,979 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:35:23,981 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:35:24,539 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-13 23:35:24,540 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:35:24,840 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:35:24,842 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:35:24,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:35:24 BoogieIcfgContainer [2024-11-13 23:35:24,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:35:24,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:35:24,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:35:24,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:35:24,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:35:23" (1/3) ... [2024-11-13 23:35:24,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c79067b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:35:24, skipping insertion in model container [2024-11-13 23:35:24,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:23" (2/3) ... [2024-11-13 23:35:24,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c79067b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:35:24, skipping insertion in model container [2024-11-13 23:35:24,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:35:24" (3/3) ... [2024-11-13 23:35:24,853 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-81.i [2024-11-13 23:35:24,872 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:35:24,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-while_file-81.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:35:24,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:35:24,958 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;@1b9b601c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:35:24,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:35:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 23:35:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 23:35:24,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:24,975 INFO L215 NwaCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:24,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:24,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:24,983 INFO L85 PathProgramCache]: Analyzing trace with hash 943294642, now seen corresponding path program 1 times [2024-11-13 23:35:24,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:24,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198084769] [2024-11-13 23:35:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 14 proven. 74 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2024-11-13 23:35:32,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198084769] [2024-11-13 23:35:32,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198084769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:32,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342032705] [2024-11-13 23:35:32,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:32,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:32,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:32,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:32,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:35:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:33,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 23:35:33,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:40:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 327 proven. 92 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 23:40:37,249 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:41:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-11-13 23:41:30,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342032705] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:41:30,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1898036523] [2024-11-13 23:41:30,503 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-13 23:41:30,503 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:41:30,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:41:30,512 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:41:30,512 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:46,324 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 62 for LOIs [2024-11-13 23:44:46,337 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:45:01,842 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '638#(and (<= 0 ~var_1_22~0) (<= 1 |#StackHeapBarrier|) (<= ~var_1_18~0 126) (<= 0 ~var_1_21~0) (<= ~var_1_22~0 63) (<= ~var_1_20~0 126) (= 32 ~last_1_var_1_17~0) (<= 0 (+ ~var_1_18~0 1)) (= 31 ~var_1_16~0) (= 10 ~last_1_var_1_7~0) (<= ~var_1_21~0 63) (= ~isInitial~0 1) (= 5 ~last_1_var_1_1~0) (<= 0 (+ ~var_1_20~0 1)) (<= 0 ~var_1_19~0) (<= ~var_1_19~0 126) (= ~last_1_var_1_11~0 4))' at error location [2024-11-13 23:45:01,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:45:01,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:45:01,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 6] total 21 [2024-11-13 23:45:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442217111] [2024-11-13 23:45:01,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:45:01,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 23:45:01,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 23:45:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=896, Invalid=2764, Unknown=0, NotChecked=0, Total=3660 [2024-11-13 23:45:01,900 INFO L87 Difference]: Start difference. First operand has 48 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 21 states, 15 states have (on average 3.8) internal successors, (57), 21 states have internal predecessors, (57), 11 states have call successors, (77), 5 states have call predecessors, (77), 10 states have return successors, (78), 10 states have call predecessors, (78), 11 states have call successors, (78) [2024-11-13 23:45:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:05,116 INFO L93 Difference]: Finished difference Result 161 states and 232 transitions. [2024-11-13 23:45:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-13 23:45:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 3.8) internal successors, (57), 21 states have internal predecessors, (57), 11 states have call successors, (77), 5 states have call predecessors, (77), 10 states have return successors, (78), 10 states have call predecessors, (78), 11 states have call successors, (78) Word has length 95 [2024-11-13 23:45:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:05,124 INFO L225 Difference]: With dead ends: 161 [2024-11-13 23:45:05,124 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 23:45:05,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2184 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=1450, Invalid=4870, Unknown=0, NotChecked=0, Total=6320 [2024-11-13 23:45:05,135 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 74 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:05,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 276 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 23:45:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 23:45:05,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 23:45:05,162 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) [2024-11-13 23:45:05,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 23:45:05,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2024-11-13 23:45:05,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:05,172 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 23:45:05,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 3.8) internal successors, (57), 21 states have internal predecessors, (57), 11 states have call successors, (77), 5 states have call predecessors, (77), 10 states have return successors, (78), 10 states have call predecessors, (78), 11 states have call successors, (78) [2024-11-13 23:45:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 23:45:05,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:45:05,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:45:05,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:45:05,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 23:45:05,386 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 23:45:05,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 23:45:07,709 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:45:07,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:45:07 BoogieIcfgContainer [2024-11-13 23:45:07,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:45:07,751 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:45:07,751 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:45:07,751 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:45:07,752 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:35:24" (3/4) ... [2024-11-13 23:45:07,755 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:45:07,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-13 23:45:07,770 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-13 23:45:07,771 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-13 23:45:07,771 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 23:45:07,772 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:45:07,914 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:45:07,914 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-13 23:45:07,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:45:07,916 INFO L158 Benchmark]: Toolchain (without parser) took 584633.91ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 117.9MB in the beginning and 1.1GB in the end (delta: -1000.0MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. [2024-11-13 23:45:07,917 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 142.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:07,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.94ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 103.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:45:07,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.96ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 99.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:07,920 INFO L158 Benchmark]: Boogie Preprocessor took 62.70ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 97.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:07,921 INFO L158 Benchmark]: RCFGBuilder took 1048.58ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 112.1MB in the end (delta: -14.5MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2024-11-13 23:45:07,923 INFO L158 Benchmark]: TraceAbstraction took 582904.11ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 111.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 783.7MB. Max. memory is 16.1GB. [2024-11-13 23:45:07,924 INFO L158 Benchmark]: Witness Printer took 163.58ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:07,926 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 142.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.94ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 103.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.96ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 99.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.70ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 97.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1048.58ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 112.1MB in the end (delta: -14.5MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * TraceAbstraction took 582904.11ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 111.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 783.7MB. Max. memory is 16.1GB. * Witness Printer took 163.58ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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 - 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 580.5s, OverallIterations: 1, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 237 mSDsCounter, 162 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 575 IncrementalHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 162 mSolverCounterUnsat, 39 mSDtfsCounter, 575 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 318 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2184 ImplicationChecksByTransitivity, 18.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 364.1s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 5728 SizeOfPredicates, 44 NumberOfNonLiveVariables, 274 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 1767/1950 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: 140]: Loop Invariant Derived loop invariant: ((((var_1_6 <= 127) && (32767 <= var_1_13)) && (127 <= var_1_5)) && (32767 <= var_1_12)) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: ((126 < var_1_5) || (((var_1_5 < var_1_12) || ((var_1_12 == var_1_5) && (var_1_12 <= 0))) && ((var_1_6 == 0) || (var_1_6 < var_1_12)))) Ensures: (((cond != 0) && ((126 < var_1_5) || (((var_1_5 < var_1_12) || ((var_1_12 == var_1_5) && (var_1_12 <= 0))) && ((var_1_6 == 0) || (var_1_6 < var_1_12))))) && ((((((((((((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_5 == \old(var_1_5))) && (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))) && (var_1_19 == \old(var_1_19))) && (var_1_20 == \old(var_1_20))) && (var_1_21 == \old(var_1_21))) && (var_1_22 == \old(var_1_22))) && (var_1_23 == \old(var_1_23))) && (var_1_24 == \old(var_1_24))) && (last_1_var_1_1 == \old(last_1_var_1_1))) && (last_1_var_1_7 == \old(last_1_var_1_7))) && (last_1_var_1_11 == \old(last_1_var_1_11))) && (last_1_var_1_17 == \old(last_1_var_1_17)))) RESULT: Ultimate proved your program to be correct! [2024-11-13 23:45:08,147 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-13 23:45:08,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74bc0bf8-f6dc-4003-8e67-8ef7a0266081/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE