./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.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_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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_b012f670-25d2-406e-8e00-8c7363cea35e/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 54e89b689abd5aceea72f385133ed62312f7e51814596e048b83f706db06b344 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:25:47,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:25:47,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:25:47,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:25:47,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:25:47,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:25:47,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:25:47,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:25:47,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:25:47,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:25:47,943 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:25:47,943 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:25:47,943 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:25:47,943 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:25:47,943 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:25:47,944 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:25:47,944 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:25:47,944 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:25:47,945 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:25:47,945 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:25:47,945 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:25:47,945 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:25:47,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:25:47,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:25:47,946 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:25:47,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:25:47,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:25:47,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:25:47,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:25:47,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:25:47,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:25:47,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:25:47,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:25:47,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:25:47,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:25:47,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:25:47,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:25:47,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:25:47,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:47,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:25:47,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:25:47,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:25:47,950 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:25:47,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:25:47,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:25:47,951 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:25:47,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:25:47,951 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_b012f670-25d2-406e-8e00-8c7363cea35e/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 -> 54e89b689abd5aceea72f385133ed62312f7e51814596e048b83f706db06b344 [2024-11-14 05:25:48,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:25:48,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:25:48,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:25:48,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:25:48,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:25:48,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i Unable to find full path for "g++" [2024-11-14 05:25:50,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:25:50,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:25:50,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i [2024-11-14 05:25:51,011 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data/975b9662c/6cc3a715a58e4beeb208e78aa040212e/FLAG8b0c86f96 [2024-11-14 05:25:51,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data/975b9662c/6cc3a715a58e4beeb208e78aa040212e [2024-11-14 05:25:51,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:25:51,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:25:51,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:25:51,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:25:51,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:25:51,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad7100a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51, skipping insertion in model container [2024-11-14 05:25:51,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:25:51,317 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_b012f670-25d2-406e-8e00-8c7363cea35e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i[915,928] [2024-11-14 05:25:51,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:25:51,453 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:25:51,466 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_b012f670-25d2-406e-8e00-8c7363cea35e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i[915,928] [2024-11-14 05:25:51,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:25:51,542 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:25:51,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51 WrapperNode [2024-11-14 05:25:51,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:25:51,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:25:51,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:25:51,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:25:51,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,634 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2024-11-14 05:25:51,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:25:51,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:25:51,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:25:51,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:25:51,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:25:51,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:25:51,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:25:51,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:25:51,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (1/1) ... [2024-11-14 05:25:51,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:51,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:51,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:25:51,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:25:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:25:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:25:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:25:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:25:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:25:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:25:51,902 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:25:51,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:25:52,327 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-14 05:25:52,328 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:25:52,572 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:25:52,573 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:25:52,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:25:52 BoogieIcfgContainer [2024-11-14 05:25:52,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:25:52,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:25:52,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:25:52,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:25:52,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:25:51" (1/3) ... [2024-11-14 05:25:52,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ebd457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:25:52, skipping insertion in model container [2024-11-14 05:25:52,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:51" (2/3) ... [2024-11-14 05:25:52,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ebd457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:25:52, skipping insertion in model container [2024-11-14 05:25:52,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:25:52" (3/3) ... [2024-11-14 05:25:52,587 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-27.i [2024-11-14 05:25:52,613 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:25:52,616 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-27.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:25:52,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:25:52,702 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;@e114a8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:25:52,703 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:25:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:25:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:25:52,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:52,721 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:52,721 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:25:52,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:52,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1351291137, now seen corresponding path program 1 times [2024-11-14 05:25:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:52,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061105820] [2024-11-14 05:25:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:52,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:25:53,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:25:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:25:53,734 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:25:53,737 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:25:53,739 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:25:53,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:25:53,747 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:25:53,854 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:25:53,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:25:53 BoogieIcfgContainer [2024-11-14 05:25:53,862 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:25:53,863 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:25:53,863 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:25:53,863 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:25:53,864 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:25:52" (3/4) ... [2024-11-14 05:25:53,870 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:25:53,871 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:25:53,873 INFO L158 Benchmark]: Toolchain (without parser) took 2836.53ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 71.0MB in the end (delta: 48.0MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2024-11-14 05:25:53,873 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:53,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.00ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 105.1MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:53,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.35ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 102.4MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:53,878 INFO L158 Benchmark]: Boogie Preprocessor took 44.22ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 101.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:53,878 INFO L158 Benchmark]: RCFGBuilder took 893.60ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 61.6MB in the end (delta: 39.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 05:25:53,878 INFO L158 Benchmark]: TraceAbstraction took 1286.57ms. Allocated memory is still 142.6MB. Free memory was 61.1MB in the beginning and 71.0MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:53,879 INFO L158 Benchmark]: Witness Printer took 8.78ms. Allocated memory is still 142.6MB. Free memory was 71.0MB in the beginning and 71.0MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:53,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.00ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 105.1MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.35ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 102.4MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.22ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 101.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 893.60ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 61.6MB in the end (delta: 39.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1286.57ms. Allocated memory is still 142.6MB. Free memory was 61.1MB in the beginning and 71.0MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.78ms. Allocated memory is still 142.6MB. Free memory was 71.0MB in the beginning and 71.0MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 50, overapproximation of someBinaryFLOATComparisonOperation at line 96, overapproximation of someBinaryFLOATComparisonOperation at line 100, overapproximation of someBinaryFLOATComparisonOperation at line 45, overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryFLOATComparisonOperation at line 102, overapproximation of someBinaryFLOATComparisonOperation at line 107, overapproximation of someBinaryArithmeticFLOAToperation at line 72. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 3.9; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 0; [L25] float var_1_4 = 31.5; [L26] float var_1_5 = 25.4; [L27] float var_1_6 = 9.5; [L28] float var_1_7 = 63.2; [L29] unsigned long int var_1_8 = 1; [L30] signed short int var_1_10 = -50; [L31] unsigned long int var_1_11 = 8; [L32] unsigned char var_1_12 = 32; [L33] float var_1_13 = 15.625; [L34] unsigned char var_1_14 = 1; [L35] unsigned char var_1_15 = 0; [L36] unsigned char var_1_16 = 1; [L37] unsigned char var_1_17 = 1; [L38] unsigned char var_1_19 = 0; [L39] unsigned char var_1_20 = 8; [L40] unsigned short int var_1_21 = 16; [L41] unsigned short int var_1_22 = 128; [L129] isInitial = 1 [L130] FCALL initially() [L131] int k_loop; [L132] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=0, var_1_3=0, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L132] COND TRUE k_loop < 1 [L133] FCALL updateLastVariables() [L134] CALL updateVariables() [L89] var_1_2 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_3=0, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_3=0, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L91] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=0, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=0, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L92] var_1_3 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L94] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_4=63/2, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L95] var_1_4 = __VERIFIER_nondet_float() [L96] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_5=127/5, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L97] var_1_5 = __VERIFIER_nondet_float() [L98] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_6=19/2, var_1_7=316/5, var_1_8=1] [L99] var_1_6 = __VERIFIER_nondet_float() [L100] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_7=316/5, var_1_8=1] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_7=316/5, var_1_8=1] [L101] var_1_7 = __VERIFIER_nondet_float() [L102] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-50, var_1_11=8, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L103] var_1_11 = __VERIFIER_nondet_ulong() [L104] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=-50, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L105] CALL assume_abort_if_not(var_1_11 <= 33) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_11 <= 33) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_13=125/8, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L106] var_1_13 = __VERIFIER_nondet_float() [L107] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L108] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=0, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L109] var_1_15 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L111] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L112] var_1_16 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L114] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L115] var_1_17 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L117] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L118] var_1_19 = __VERIFIER_nondet_uchar() [L119] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L120] CALL assume_abort_if_not(var_1_19 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_19 <= 0) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=32, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=39/10, var_1_20=8, var_1_21=16, var_1_22=128, var_1_2=1, var_1_3=1, var_1_8=1] [L134] RET updateVariables() [L135] CALL step() [L45] COND TRUE var_1_6 == (var_1_4 / var_1_13) [L46] var_1_12 = var_1_11 [L48] var_1_20 = var_1_11 [L49] var_1_21 = 8 [L50] EXPR 2u >> var_1_11 [L50] COND FALSE !((var_1_21 + var_1_12) > (2u >> var_1_11)) [L57] COND FALSE !(! var_1_2) [L68] unsigned char stepLocal_1 = var_1_14; [L69] unsigned char stepLocal_0 = var_1_14; [L70] COND TRUE var_1_14 || stepLocal_0 [L71] COND TRUE stepLocal_1 || var_1_14 [L72] var_1_1 = (((((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5)))) > (var_1_6)) ? (((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6))) - var_1_7) [L79] COND TRUE var_1_6 > (- var_1_7) [L80] COND TRUE var_1_5 == (((((var_1_6 * var_1_7)) > (var_1_1)) ? ((var_1_6 * var_1_7)) : (var_1_1))) [L81] var_1_8 = 8u [L86] var_1_22 = var_1_8 [L135] RET step() [L136] CALL, EXPR property() [L125] EXPR (((var_1_14 || var_1_14) ? ((var_1_14 || var_1_14) ? (var_1_1 == ((float) (((((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5)))) > (var_1_6)) ? (((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6))) - var_1_7))) : (var_1_1 == ((float) 1.0000000075E8f))) : (var_1_1 == ((float) var_1_7))) && ((var_1_6 > (- var_1_7)) ? ((var_1_5 == (((((var_1_6 * var_1_7)) > (var_1_1)) ? ((var_1_6 * var_1_7)) : (var_1_1)))) ? (var_1_8 == ((unsigned long int) 8u)) : 1) : (var_1_8 == ((unsigned long int) var_1_20)))) && (((var_1_21 + var_1_12) > (2u >> var_1_11)) ? ((var_1_12 != var_1_21) ? (var_1_10 == ((signed short int) var_1_11)) : (var_1_10 == ((signed short int) 128))) : 1) [L125-L126] return ((((((((var_1_14 || var_1_14) ? ((var_1_14 || var_1_14) ? (var_1_1 == ((float) (((((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5)))) > (var_1_6)) ? (((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6))) - var_1_7))) : (var_1_1 == ((float) 1.0000000075E8f))) : (var_1_1 == ((float) var_1_7))) && ((var_1_6 > (- var_1_7)) ? ((var_1_5 == (((((var_1_6 * var_1_7)) > (var_1_1)) ? ((var_1_6 * var_1_7)) : (var_1_1)))) ? (var_1_8 == ((unsigned long int) 8u)) : 1) : (var_1_8 == ((unsigned long int) var_1_20)))) && (((var_1_21 + var_1_12) > (2u >> var_1_11)) ? ((var_1_12 != var_1_21) ? (var_1_10 == ((signed short int) var_1_11)) : (var_1_10 == ((signed short int) 128))) : 1)) && ((var_1_6 == (var_1_4 / var_1_13)) ? (var_1_12 == ((unsigned char) var_1_11)) : 1)) && ((! var_1_2) ? ((var_1_2 || var_1_3) ? (var_1_14 == ((unsigned char) ((! (! var_1_15)) && (var_1_16 && var_1_17)))) : ((((((var_1_12) > (var_1_12)) ? (var_1_12) : (var_1_12))) >= var_1_21) ? (var_1_14 == ((unsigned char) (var_1_2 || var_1_16))) : (var_1_14 == ((unsigned char) (! var_1_19))))) : 1)) && (var_1_20 == ((unsigned char) var_1_11))) && (var_1_21 == ((unsigned short int) 8))) && (var_1_22 == ((unsigned short int) var_1_8)) ; [L136] RET, EXPR property() [L136] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=33, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=400000003/4, var_1_20=33, var_1_21=8, var_1_22=8, var_1_2=1, var_1_3=1, var_1_7=400000003/4, var_1_8=8] [L19] reach_error() VAL [isInitial=1, var_1_10=-50, var_1_11=33, var_1_12=33, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_19=0, var_1_1=400000003/4, var_1_20=33, var_1_21=8, var_1_22=8, var_1_2=1, var_1_3=1, var_1_7=400000003/4, var_1_8=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 20, 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=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 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 05:25:53,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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_b012f670-25d2-406e-8e00-8c7363cea35e/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 54e89b689abd5aceea72f385133ed62312f7e51814596e048b83f706db06b344 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:25:57,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:25:57,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:25:57,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:25:57,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:25:57,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:25:57,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:25:57,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:25:57,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:25:57,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:25:57,351 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:25:57,351 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:25:57,351 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:25:57,351 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:25:57,351 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:25:57,351 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:25:57,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:25:57,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:25:57,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:25:57,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:25:57,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:25:57,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:25:57,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:25:57,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:25:57,353 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:25:57,353 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:25:57,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:25:57,353 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:25:57,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:25:57,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:25:57,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:25:57,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:25:57,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:25:57,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:25:57,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:25:57,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:57,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:25:57,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:25:57,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:25:57,362 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:25:57,362 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:25:57,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:25:57,362 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:25:57,363 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_b012f670-25d2-406e-8e00-8c7363cea35e/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 -> 54e89b689abd5aceea72f385133ed62312f7e51814596e048b83f706db06b344 [2024-11-14 05:25:57,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:25:57,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:25:57,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:25:57,742 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:25:57,742 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:25:57,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i Unable to find full path for "g++" [2024-11-14 05:25:59,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:26:00,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:26:00,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i [2024-11-14 05:26:00,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data/361c8b551/ba8d9399e3274d46859794e2aa3fd107/FLAG658210e01 [2024-11-14 05:26:00,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/data/361c8b551/ba8d9399e3274d46859794e2aa3fd107 [2024-11-14 05:26:00,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:26:00,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:26:00,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:26:00,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:26:00,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:26:00,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244dca8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00, skipping insertion in model container [2024-11-14 05:26:00,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,440 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:26:00,640 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_b012f670-25d2-406e-8e00-8c7363cea35e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i[915,928] [2024-11-14 05:26:00,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:26:00,738 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:26:00,751 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_b012f670-25d2-406e-8e00-8c7363cea35e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-27.i[915,928] [2024-11-14 05:26:00,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:26:00,819 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:26:00,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00 WrapperNode [2024-11-14 05:26:00,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:26:00,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:26:00,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:26:00,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:26:00,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,873 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-11-14 05:26:00,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:26:00,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:26:00,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:26:00,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:26:00,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,920 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:26:00,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:26:00,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:26:00,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:26:00,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (1/1) ... [2024-11-14 05:26:00,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:26:00,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:00,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:26:01,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:26:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:26:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:26:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:26:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:26:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:26:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:26:01,180 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:26:01,183 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:26:05,294 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-14 05:26:05,294 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:26:05,305 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:26:05,305 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:26:05,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:26:05 BoogieIcfgContainer [2024-11-14 05:26:05,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:26:05,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:26:05,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:26:05,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:26:05,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:26:00" (1/3) ... [2024-11-14 05:26:05,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfc0975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:26:05, skipping insertion in model container [2024-11-14 05:26:05,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:26:00" (2/3) ... [2024-11-14 05:26:05,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfc0975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:26:05, skipping insertion in model container [2024-11-14 05:26:05,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:26:05" (3/3) ... [2024-11-14 05:26:05,317 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-27.i [2024-11-14 05:26:05,335 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:26:05,338 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-27.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:26:05,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:26:05,430 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;@14f31db1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:26:05,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:26:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:26:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 05:26:05,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:05,453 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:05,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:05,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:05,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1439671998, now seen corresponding path program 1 times [2024-11-14 05:26:05,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:05,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304162123] [2024-11-14 05:26:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:05,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:26:05,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:05,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:26:05,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:26:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:06,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:26:06,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-14 05:26:06,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:06,215 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:06,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304162123] [2024-11-14 05:26:06,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304162123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:06,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:06,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:26:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941457088] [2024-11-14 05:26:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:06,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:26:06,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:06,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:26:06,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:26:06,247 INFO L87 Difference]: Start difference. First operand has 64 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:26:06,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:06,275 INFO L93 Difference]: Finished difference Result 125 states and 209 transitions. [2024-11-14 05:26:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:26:06,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 129 [2024-11-14 05:26:06,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:06,285 INFO L225 Difference]: With dead ends: 125 [2024-11-14 05:26:06,286 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 05:26:06,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:26:06,295 INFO L432 NwaCegarLoop]: 93 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, 93 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:06,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:26:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 05:26:06,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-14 05:26:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:26:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2024-11-14 05:26:06,350 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 129 [2024-11-14 05:26:06,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:06,351 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2024-11-14 05:26:06,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:26:06,351 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2024-11-14 05:26:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 05:26:06,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:06,357 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:06,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:26:06,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:26:06,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:06,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:06,560 INFO L85 PathProgramCache]: Analyzing trace with hash 841461942, now seen corresponding path program 1 times [2024-11-14 05:26:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:06,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286877840] [2024-11-14 05:26:06,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:06,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:26:06,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:06,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:26:06,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:26:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:07,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:26:07,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-14 05:26:07,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:26:08,364 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:08,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286877840] [2024-11-14 05:26:08,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286877840] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:08,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:26:08,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-14 05:26:08,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073263405] [2024-11-14 05:26:08,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:08,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:26:08,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:08,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:26:08,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:26:08,371 INFO L87 Difference]: Start difference. First operand 60 states and 89 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:26:11,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:26:11,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:11,252 INFO L93 Difference]: Finished difference Result 121 states and 178 transitions. [2024-11-14 05:26:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:26:11,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 129 [2024-11-14 05:26:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:11,277 INFO L225 Difference]: With dead ends: 121 [2024-11-14 05:26:11,277 INFO L226 Difference]: Without dead ends: 64 [2024-11-14 05:26:11,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:26:11,279 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 53 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:11,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 114 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 05:26:11,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-14 05:26:11,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-14 05:26:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 41 states have internal predecessors, (51), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:26:11,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions. [2024-11-14 05:26:11,296 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 129 [2024-11-14 05:26:11,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:11,297 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 91 transitions. [2024-11-14 05:26:11,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:26:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2024-11-14 05:26:11,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 05:26:11,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:11,301 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:11,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 05:26:11,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:26:11,502 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:11,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:11,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1339142316, now seen corresponding path program 1 times [2024-11-14 05:26:11,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:11,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079222266] [2024-11-14 05:26:11,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:11,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:26:11,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:11,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:26:11,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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 05:26:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:11,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:26:12,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:13,020 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:26:13,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:13,020 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:13,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079222266] [2024-11-14 05:26:13,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079222266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:13,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:13,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:26:13,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774229379] [2024-11-14 05:26:13,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:13,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:26:13,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:13,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:26:13,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:26:13,023 INFO L87 Difference]: Start difference. First operand 64 states and 91 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:26:15,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:26:15,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:15,445 INFO L93 Difference]: Finished difference Result 186 states and 267 transitions. [2024-11-14 05:26:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:26:15,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2024-11-14 05:26:15,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:15,471 INFO L225 Difference]: With dead ends: 186 [2024-11-14 05:26:15,471 INFO L226 Difference]: Without dead ends: 125 [2024-11-14 05:26:15,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:26:15,473 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 18 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:15,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 242 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 05:26:15,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-14 05:26:15,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2024-11-14 05:26:15,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 76 states have internal predecessors, (92), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:26:15,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 172 transitions. [2024-11-14 05:26:15,501 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 172 transitions. Word has length 130 [2024-11-14 05:26:15,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:15,501 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 172 transitions. [2024-11-14 05:26:15,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:26:15,502 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 172 transitions. [2024-11-14 05:26:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 05:26:15,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:15,504 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:15,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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 05:26:15,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:26:15,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:15,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash -460703102, now seen corresponding path program 1 times [2024-11-14 05:26:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:15,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262049836] [2024-11-14 05:26:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:15,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:26:15,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:15,710 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:26:15,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/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 (5)] Waiting until timeout for monitored process [2024-11-14 05:26:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:16,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:26:16,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:31,900 WARN L286 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:26:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 358 proven. 72 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-14 05:26:41,758 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:45,479 WARN L851 $PredicateComparison]: unable to prove that (or (fp.gt c_~var_1_6~0 (fp.neg c_~var_1_7~0)) (forall ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_6~0 (fp.div c_currentRoundingMode ~var_1_4~0 ~var_1_13~0))))) is different from false [2024-11-14 05:26:50,883 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:50,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262049836] [2024-11-14 05:26:50,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262049836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:50,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [396741474] [2024-11-14 05:26:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:50,884 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:26:50,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:26:50,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:26:50,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b012f670-25d2-406e-8e00-8c7363cea35e/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-14 05:26:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:52,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 05:26:52,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:28:01,881 WARN L286 SmtUtils]: Spent 13.31s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:28:58,531 WARN L286 SmtUtils]: Spent 14.66s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:30:20,662 WARN L286 SmtUtils]: Spent 17.41s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:31:25,759 WARN L286 SmtUtils]: Spent 25.59s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:35:01,847 WARN L286 SmtUtils]: Spent 1.05m on a formula simplification that was a NOOP. DAG size: 66 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:35:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 343 proven. 108 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-14 05:35:02,027 INFO L311 TraceCheckSpWp]: Computing backward predicates...