./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje --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 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:31:27,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:31:27,331 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:31:27,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:31:27,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:31:27,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:31:27,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:31:27,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:31:27,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:31:27,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:31:27,384 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:31:27,385 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:31:27,385 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:31:27,385 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:31:27,386 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:31:27,386 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:31:27,386 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:31:27,387 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:31:27,387 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:31:27,387 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:31:27,387 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:31:27,390 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:31:27,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:31:27,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:31:27,392 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:31:27,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:31:27,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:31:27,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:31:27,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:31:27,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:31:27,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:31:27,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:31:27,397 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:31:27,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:31:27,397 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:31:27,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:31:27,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:31:27,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:31:27,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:31:27,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:31:27,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:31:27,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:31:27,399 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:31:27,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:31:27,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:31:27,400 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:31:27,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:31:27,401 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 [2024-11-09 05:31:27,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:31:27,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:31:27,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:31:27,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:31:27,715 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:31:27,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i Unable to find full path for "g++" [2024-11-09 05:31:29,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:31:30,008 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:31:30,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-09 05:31:30,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data/f074681d2/2fc8a204c58c4c59add3496f153e4282/FLAG9d5b85bf2 [2024-11-09 05:31:30,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data/f074681d2/2fc8a204c58c4c59add3496f153e4282 [2024-11-09 05:31:30,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:31:30,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:31:30,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:31:30,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:31:30,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:31:30,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdd8518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30, skipping insertion in model container [2024-11-09 05:31:30,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,426 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:31:30,608 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_4349f9e3-37b9-41d0-9d98-a46259c8c363/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-09 05:31:30,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:31:30,705 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:31:30,718 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_4349f9e3-37b9-41d0-9d98-a46259c8c363/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-09 05:31:30,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:31:30,819 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:31:30,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30 WrapperNode [2024-11-09 05:31:30,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:31:30,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:31:30,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:31:30,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:31:30,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,904 INFO L138 Inliner]: procedures = 29, calls = 172, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 523 [2024-11-09 05:31:30,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:31:30,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:31:30,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:31:30,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:31:30,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:30,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:31,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:31,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:31,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:31:31,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:31:31,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:31:31,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:31:31,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (1/1) ... [2024-11-09 05:31:31,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:31:31,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:31,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:31:31,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:31:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:31:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 05:31:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:31:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 05:31:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:31:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 05:31:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:31:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:31:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:31:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:31:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:31:31,289 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:31:31,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:31:32,044 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-11-09 05:31:32,044 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:31:32,759 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:31:32,761 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:31:32,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:31:32 BoogieIcfgContainer [2024-11-09 05:31:32,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:31:32,764 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:31:32,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:31:32,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:31:32,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:31:30" (1/3) ... [2024-11-09 05:31:32,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b537b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:31:32, skipping insertion in model container [2024-11-09 05:31:32,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:30" (2/3) ... [2024-11-09 05:31:32,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b537b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:31:32, skipping insertion in model container [2024-11-09 05:31:32,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:31:32" (3/3) ... [2024-11-09 05:31:32,773 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-30.i [2024-11-09 05:31:32,792 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:31:32,792 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:31:32,860 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:31:32,867 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;@2dfd9bbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:31:32,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:31:32,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:31:32,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:31:32,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:32,884 INFO L215 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:32,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:32,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash -925575630, now seen corresponding path program 1 times [2024-11-09 05:31:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:32,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982016908] [2024-11-09 05:31:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:32,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:31:34,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261014047] [2024-11-09 05:31:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:34,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:34,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:34,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:34,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:31:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:31:35,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:31:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:31:36,001 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:31:36,004 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:31:36,005 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:31:36,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:31:36,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 05:31:36,212 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:31:36,341 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:31:36,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:31:36 BoogieIcfgContainer [2024-11-09 05:31:36,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:31:36,348 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:31:36,348 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:31:36,349 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:31:36,350 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:31:32" (3/4) ... [2024-11-09 05:31:36,353 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:31:36,354 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:31:36,356 INFO L158 Benchmark]: Toolchain (without parser) took 5980.05ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 119.1MB in the beginning and 95.7MB in the end (delta: 23.4MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2024-11-09 05:31:36,356 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:31:36,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.87ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 101.4MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 05:31:36,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.70ms. Allocated memory is still 155.2MB. Free memory was 101.4MB in the beginning and 96.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:31:36,359 INFO L158 Benchmark]: Boogie Preprocessor took 116.12ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 92.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:31:36,360 INFO L158 Benchmark]: RCFGBuilder took 1739.88ms. Allocated memory is still 155.2MB. Free memory was 92.5MB in the beginning and 70.2MB in the end (delta: 22.3MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2024-11-09 05:31:36,362 INFO L158 Benchmark]: TraceAbstraction took 3583.54ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 69.1MB in the beginning and 95.7MB in the end (delta: -26.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-09 05:31:36,365 INFO L158 Benchmark]: Witness Printer took 6.21ms. Allocated memory is still 199.2MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:31:36,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.87ms. Allocated memory is still 155.2MB. Free memory was 119.1MB in the beginning and 101.4MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.70ms. Allocated memory is still 155.2MB. Free memory was 101.4MB in the beginning and 96.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.12ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 92.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1739.88ms. Allocated memory is still 155.2MB. Free memory was 92.5MB in the beginning and 70.2MB in the end (delta: 22.3MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3583.54ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 69.1MB in the beginning and 95.7MB in the end (delta: -26.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 6.21ms. Allocated memory is still 199.2MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of shiftLeft at line 63, overapproximation of someUnaryFLOAToperation at line 69, overapproximation of someBinaryArithmeticFLOAToperation at line 69. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] float float_Array_0[5] = { 127.8, 32.5, 256.6, 999.25, 1000000000.5 }; [L28-L30] signed long int signed_long_int_Array_0[1] = { 0 }; [L31-L33] signed short int signed_short_int_Array_0[2] = { -32, 8 }; [L34-L36] unsigned char unsigned_char_Array_0[2][2] = { {2, 128}, {10, 64} }; [L37] signed long int last_1_signed_long_int_Array_0_0_ = 0; [L109] isInitial = 1 [L110] FCALL initially() [L111] COND TRUE 1 [L112] CALL updateLastVariables() [L102] EXPR signed_long_int_Array_0[0] [L102] last_1_signed_long_int_Array_0_0_ = signed_long_int_Array_0[0] [L112] RET updateLastVariables() [L113] CALL updateVariables() [L74] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L75] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L77] float_Array_0[0] = __VERIFIER_nondet_float() [L78] EXPR float_Array_0[0] [L78] EXPR float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F [L78] EXPR float_Array_0[0] [L78] EXPR float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F [L78] EXPR (float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 4611686.018427382800e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] CALL assume_abort_if_not((float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 4611686.018427382800e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((float_Array_0[0] >= -461168.6018427382800e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 4611686.018427382800e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L79] float_Array_0[3] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[3] [L80] EXPR float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F [L80] EXPR float_Array_0[3] [L80] EXPR float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F [L80] EXPR (float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 4611686.018427382800e+12F && float_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] CALL assume_abort_if_not((float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 4611686.018427382800e+12F && float_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((float_Array_0[3] >= -461168.6018427382800e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 4611686.018427382800e+12F && float_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L81] float_Array_0[4] = __VERIFIER_nondet_float() [L82] EXPR float_Array_0[4] [L82] EXPR float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F [L82] EXPR float_Array_0[4] [L82] EXPR float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F [L82] EXPR (float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854765600e+12F && float_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] CALL assume_abort_if_not((float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854765600e+12F && float_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((float_Array_0[4] >= 0.0F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854765600e+12F && float_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L83] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L84] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L86] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L86] CALL assume_abort_if_not(signed_short_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(signed_short_int_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L87] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L88] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(signed_short_int_Array_0[1] >= -32768) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L89] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L89] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L90] CALL assume_abort_if_not(signed_short_int_Array_0[1] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(signed_short_int_Array_0[1] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L91] unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L92] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L92] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L93] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L93] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(unsigned_char_Array_0[0][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L94] unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L95] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L95] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L96] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L96] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(unsigned_char_Array_0[1][0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L97] unsigned_char_Array_0[0][1] = __VERIFIER_nondet_uchar() [L98] EXPR unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L98] CALL assume_abort_if_not(unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(unsigned_char_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L99] EXPR unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L99] CALL assume_abort_if_not(unsigned_char_Array_0[0][1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(unsigned_char_Array_0[0][1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L113] RET updateVariables() [L114] CALL step() [L41] EXPR signed_short_int_Array_0[1] [L41] EXPR signed_short_int_Array_0[0] [L41] signed long int stepLocal_0 = (last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0]; [L42] BOOL_unsigned_char_Array_0[0] [L42] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L47] EXPR unsigned_char_Array_0[0][0] [L47] unsigned_char_Array_0[1][1] = unsigned_char_Array_0[0][0] [L49] EXPR unsigned_char_Array_0[1][1] [L49] unsigned char stepLocal_2 = unsigned_char_Array_0[1][1]; [L50] EXPR unsigned_char_Array_0[1][1] [L50] EXPR unsigned_char_Array_0[1][1] [L50] signed long int stepLocal_1 = unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]; [L51] EXPR signed_short_int_Array_0[0] [L51] COND TRUE stepLocal_1 < signed_short_int_Array_0[0] [L52] BOOL_unsigned_char_Array_0[0] [L52] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L57] EXPR unsigned_char_Array_0[1][0] [L57] signed_long_int_Array_0[0] = unsigned_char_Array_0[1][0] [L62] EXPR unsigned_char_Array_0[1][1] [L62] unsigned char stepLocal_4 = unsigned_char_Array_0[1][1]; [L63] EXPR unsigned_char_Array_0[0][0] [L63] EXPR signed_short_int_Array_0[1] [L63] EXPR signed_short_int_Array_0[0] [L63] EXPR (unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0] [L63] signed long int stepLocal_3 = (unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0]; [L64] EXPR signed_long_int_Array_0[0] [L64] COND FALSE !(stepLocal_4 > signed_long_int_Array_0[0]) [L69] EXPR float_Array_0[0] [L69] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L69] EXPR float_Array_0[0] [L69] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L69] EXPR float_Array_0[4] [L69] float_Array_0[1] = (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]) [L71] EXPR float_Array_0[4] [L71] float_Array_0[2] = float_Array_0[4] [L114] RET step() [L115] CALL, EXPR property() [L105] EXPR BOOL_unsigned_char_Array_0[0] [L105] EXPR BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0])) [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR unsigned_char_Array_0[0][0] [L105] EXPR BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0])) [L105] EXPR (BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0]))) [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR signed_short_int_Array_0[0] [L105] EXPR ((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])) [L105] EXPR BOOL_unsigned_char_Array_0[0] [L105] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0])) [L105] EXPR signed_long_int_Array_0[0] [L105] EXPR unsigned_char_Array_0[1][0] [L105] EXPR BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0])) [L105] EXPR ((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])) [L105] EXPR (BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0]))) [L105] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4])))) [L105] EXPR unsigned_char_Array_0[1][1] [L105] EXPR signed_long_int_Array_0[0] [L105] EXPR (unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))) [L105] EXPR float_Array_0[1] [L105] EXPR float_Array_0[0] [L105] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L105] EXPR float_Array_0[0] [L105] EXPR ((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]) [L105] EXPR float_Array_0[4] [L105] EXPR (unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))) [L105] EXPR ((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4])))) [L105] EXPR (((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))))) && (float_Array_0[2] == ((float) float_Array_0[4])) [L105-L106] return (((BOOL_unsigned_char_Array_0[0] ? ((last_1_signed_long_int_Array_0_0_ > ((last_1_signed_long_int_Array_0_0_ / signed_short_int_Array_0[1]) % signed_short_int_Array_0[0])) ? (unsigned_char_Array_0[1][1] == ((unsigned char) ((((((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) > (unsigned_char_Array_0[0][0])) ? (((((unsigned_char_Array_0[0][1]) < (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[0][1]) : (unsigned_char_Array_0[1][0])))) : (unsigned_char_Array_0[0][0]))))) : 1) : (unsigned_char_Array_0[1][1] == ((unsigned char) unsigned_char_Array_0[0][0]))) && (((unsigned_char_Array_0[1][1] + unsigned_char_Array_0[1][1]) < signed_short_int_Array_0[0]) ? (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[1] > unsigned_char_Array_0[1][1]) ? (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][1])) : 1) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[1][0]))) : (signed_long_int_Array_0[0] == ((signed long int) unsigned_char_Array_0[0][0])))) && ((unsigned_char_Array_0[1][1] > signed_long_int_Array_0[0]) ? ((unsigned_char_Array_0[1][1] <= ((unsigned_char_Array_0[0][0] / signed_short_int_Array_0[1]) << signed_short_int_Array_0[0])) ? (float_Array_0[1] == ((float) (float_Array_0[0] + float_Array_0[3]))) : 1) : (float_Array_0[1] == ((float) (((((float_Array_0[0]) < 0 ) ? -(float_Array_0[0]) : (float_Array_0[0]))) - float_Array_0[4]))))) && (float_Array_0[2] == ((float) float_Array_0[4])) ; [L115] RET, EXPR property() [L115] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=0, signed_long_int_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 2 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 [2024-11-09 05:31:36,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje --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 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:31:38,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:31:39,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:31:39,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:31:39,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:31:39,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:31:39,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:31:39,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:31:39,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:31:39,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:31:39,054 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:31:39,055 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:31:39,055 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:31:39,055 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:31:39,056 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:31:39,056 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:31:39,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:31:39,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:31:39,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:31:39,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:31:39,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:31:39,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:31:39,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:31:39,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:31:39,064 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:31:39,064 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:31:39,064 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:31:39,065 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:31:39,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:31:39,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:31:39,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:31:39,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:31:39,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:31:39,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:31:39,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:31:39,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:31:39,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:31:39,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:31:39,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:31:39,073 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:31:39,073 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:31:39,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:31:39,074 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:31:39,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 [2024-11-09 05:31:39,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:31:39,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:31:39,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:31:39,501 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:31:39,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:31:39,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i Unable to find full path for "g++" [2024-11-09 05:31:41,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:31:41,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:31:41,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-09 05:31:41,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data/48e355fcf/2b883e4a1b454897901c16ad08d4dea8/FLAG2cf0b3225 [2024-11-09 05:31:42,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/data/48e355fcf/2b883e4a1b454897901c16ad08d4dea8 [2024-11-09 05:31:42,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:31:42,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:31:42,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:31:42,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:31:42,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:31:42,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:42,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b85976e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42, skipping insertion in model container [2024-11-09 05:31:42,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:42,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:31:42,542 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_4349f9e3-37b9-41d0-9d98-a46259c8c363/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-09 05:31:42,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:31:42,694 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:31:42,713 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_4349f9e3-37b9-41d0-9d98-a46259c8c363/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-09 05:31:42,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:31:42,852 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:31:42,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42 WrapperNode [2024-11-09 05:31:42,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:31:42,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:31:42,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:31:42,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:31:42,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:42,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:42,950 INFO L138 Inliner]: procedures = 36, calls = 172, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 508 [2024-11-09 05:31:42,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:31:42,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:31:42,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:31:42,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:31:42,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:42,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:42,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:42,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:43,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:43,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:43,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:43,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:43,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:31:43,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:31:43,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:31:43,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:31:43,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (1/1) ... [2024-11-09 05:31:43,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:31:43,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:43,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:31:43,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:31:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:31:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 05:31:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-09 05:31:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:31:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 05:31:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 05:31:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:31:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 05:31:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 05:31:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 05:31:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:31:43,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:31:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:31:43,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:31:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 05:31:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 05:31:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:31:43,295 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:31:43,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:31:44,600 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-09 05:31:44,601 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:31:44,628 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:31:44,631 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:31:44,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:31:44 BoogieIcfgContainer [2024-11-09 05:31:44,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:31:44,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:31:44,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:31:44,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:31:44,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:31:42" (1/3) ... [2024-11-09 05:31:44,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89883d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:31:44, skipping insertion in model container [2024-11-09 05:31:44,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:31:42" (2/3) ... [2024-11-09 05:31:44,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89883d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:31:44, skipping insertion in model container [2024-11-09 05:31:44,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:31:44" (3/3) ... [2024-11-09 05:31:44,645 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-30.i [2024-11-09 05:31:44,666 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:31:44,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:31:44,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:31:44,747 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;@67664d5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:31:44,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:31:44,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 95 states have (on average 1.4105263157894736) internal successors, (134), 96 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:31:44,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 05:31:44,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:44,768 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:44,768 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:44,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:44,774 INFO L85 PathProgramCache]: Analyzing trace with hash -464115556, now seen corresponding path program 1 times [2024-11-09 05:31:44,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:31:44,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094281311] [2024-11-09 05:31:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:44,794 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 [2024-11-09 05:31:44,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:31:44,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:31:44,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:45,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:31:45,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-09 05:31:45,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:31:45,391 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:31:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094281311] [2024-11-09 05:31:45,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094281311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:45,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:45,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:31:45,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516345286] [2024-11-09 05:31:45,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:45,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:31:45,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:31:45,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:31:45,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:31:45,428 INFO L87 Difference]: Start difference. First operand has 115 states, 95 states have (on average 1.4105263157894736) internal successors, (134), 96 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:31:45,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:45,472 INFO L93 Difference]: Finished difference Result 223 states and 347 transitions. [2024-11-09 05:31:45,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:31:45,474 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-11-09 05:31:45,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:45,482 INFO L225 Difference]: With dead ends: 223 [2024-11-09 05:31:45,483 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 05:31:45,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:31:45,490 INFO L432 NwaCegarLoop]: 161 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, 161 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 [2024-11-09 05:31:45,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:31:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 05:31:45,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-09 05:31:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.3804347826086956) internal successors, (127), 92 states have internal predecessors, (127), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:31:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-11-09 05:31:45,561 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 136 [2024-11-09 05:31:45,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:45,563 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-11-09 05:31:45,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:31:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-11-09 05:31:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 05:31:45,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:45,569 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:45,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:45,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:45,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:45,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:45,771 INFO L85 PathProgramCache]: Analyzing trace with hash -840401914, now seen corresponding path program 1 times [2024-11-09 05:31:45,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:31:45,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034604913] [2024-11-09 05:31:45,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:45,772 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 [2024-11-09 05:31:45,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:31:45,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:31:45,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:46,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:31:46,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:46,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-11-09 05:31:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-09 05:31:46,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:31:46,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:31:46,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034604913] [2024-11-09 05:31:46,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034604913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:46,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:46,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:31:46,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083142584] [2024-11-09 05:31:46,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:46,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:31:46,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:31:46,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:31:46,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:31:46,667 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:31:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:47,930 INFO L93 Difference]: Finished difference Result 220 states and 320 transitions. [2024-11-09 05:31:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:31:47,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-11-09 05:31:47,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:47,938 INFO L225 Difference]: With dead ends: 220 [2024-11-09 05:31:47,938 INFO L226 Difference]: Without dead ends: 112 [2024-11-09 05:31:47,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:31:47,941 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:47,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 455 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:31:47,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-09 05:31:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-09 05:31:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:31:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2024-11-09 05:31:47,957 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 136 [2024-11-09 05:31:47,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:47,959 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2024-11-09 05:31:47,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:31:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2024-11-09 05:31:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 05:31:47,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:47,964 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:47,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:48,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:48,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:48,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2097756564, now seen corresponding path program 1 times [2024-11-09 05:31:48,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:31:48,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026917848] [2024-11-09 05:31:48,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:48,168 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 [2024-11-09 05:31:48,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:31:48,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:31:48,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:48,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:31:48,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:50,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:31:50,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 05:31:50,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:31:50,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 31 [2024-11-09 05:31:50,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:31:50,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 18 [2024-11-09 05:31:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:31:50,402 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:31:50,403 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:31:50,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026917848] [2024-11-09 05:31:50,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026917848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:50,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:50,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:31:50,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632277760] [2024-11-09 05:31:50,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:50,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:31:50,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:31:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:31:50,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:31:50,406 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:31:52,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:52,007 INFO L93 Difference]: Finished difference Result 233 states and 339 transitions. [2024-11-09 05:31:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:31:52,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-09 05:31:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:52,015 INFO L225 Difference]: With dead ends: 233 [2024-11-09 05:31:52,015 INFO L226 Difference]: Without dead ends: 125 [2024-11-09 05:31:52,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:31:52,017 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 123 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:52,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 276 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:31:52,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-09 05:31:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2024-11-09 05:31:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 98 states have internal predecessors, (135), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:31:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 169 transitions. [2024-11-09 05:31:52,033 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 169 transitions. Word has length 138 [2024-11-09 05:31:52,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:52,034 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 169 transitions. [2024-11-09 05:31:52,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:31:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 169 transitions. [2024-11-09 05:31:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 05:31:52,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:52,037 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:52,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:52,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:52,242 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:52,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:52,244 INFO L85 PathProgramCache]: Analyzing trace with hash -141806703, now seen corresponding path program 1 times [2024-11-09 05:31:52,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:31:52,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163995926] [2024-11-09 05:31:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:52,246 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 [2024-11-09 05:31:52,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:31:52,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:31:52,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:52,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:31:52,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:54,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:31:54,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 05:31:54,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 05:31:54,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:31:54,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 05:31:55,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-09 05:31:55,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-09 05:31:55,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-09 05:31:55,335 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:31:55,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 34 [2024-11-09 05:31:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-09 05:31:55,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:31:55,401 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:31:55,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163995926] [2024-11-09 05:31:55,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163995926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:55,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:31:55,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:31:55,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090987603] [2024-11-09 05:31:55,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:55,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:31:55,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:31:55,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:31:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:31:55,404 INFO L87 Difference]: Start difference. First operand 117 states and 169 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:31:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:58,361 INFO L93 Difference]: Finished difference Result 279 states and 400 transitions. [2024-11-09 05:31:58,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:31:58,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-09 05:31:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:58,365 INFO L225 Difference]: With dead ends: 279 [2024-11-09 05:31:58,365 INFO L226 Difference]: Without dead ends: 165 [2024-11-09 05:31:58,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:31:58,371 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 166 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:58,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 388 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 516 Invalid, 3 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 05:31:58,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-09 05:31:58,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 131. [2024-11-09 05:31:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 111 states have (on average 1.3693693693693694) internal successors, (152), 111 states have internal predecessors, (152), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:31:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 186 transitions. [2024-11-09 05:31:58,408 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 186 transitions. Word has length 139 [2024-11-09 05:31:58,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:58,408 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 186 transitions. [2024-11-09 05:31:58,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:31:58,409 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 186 transitions. [2024-11-09 05:31:58,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 05:31:58,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:58,414 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:58,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 05:31:58,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:31:58,615 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:58,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:58,615 INFO L85 PathProgramCache]: Analyzing trace with hash -490228444, now seen corresponding path program 1 times [2024-11-09 05:31:58,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:31:58,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241552045] [2024-11-09 05:31:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:58,616 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 [2024-11-09 05:31:58,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:31:58,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:31:58,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 05:31:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:59,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 05:31:59,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:59,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:31:59,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:00,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:00,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:00,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:01,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:01,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:02,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:02,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:32:03,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 05:32:03,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 05:32:03,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 05:32:03,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 05:32:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 33 proven. 362 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 05:32:03,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:03,448 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_152 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_150 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_150) |c_~#float_Array_0~0.base| v_ArrVal_152) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))) is different from false [2024-11-09 05:32:03,612 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:32:03,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241552045] [2024-11-09 05:32:03,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241552045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:03,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [144467952] [2024-11-09 05:32:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:03,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:32:03,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:32:03,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:32:03,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 05:32:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:04,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:32:04,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:04,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 05:32:05,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:05,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:05,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:06,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:06,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:07,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:07,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:07,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:32:08,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:08,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:08,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:08,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-09 05:32:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 05:32:08,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:08,295 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_188 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_188) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))) is different from false [2024-11-09 05:32:08,319 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_186 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_188 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_186) |c_~#float_Array_0~0.base| v_ArrVal_188) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|))))) is different from false [2024-11-09 05:32:08,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [144467952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:08,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403080192] [2024-11-09 05:32:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:08,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:08,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:08,499 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:08,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:32:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:09,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 05:32:09,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:09,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 05:32:10,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:10,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:10,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:11,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:11,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:12,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:12,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:12,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 05:32:13,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 05:32:13,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 05:32:13,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-09 05:32:13,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-09 05:32:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 33 proven. 362 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-09 05:32:13,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:13,816 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_224 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_224) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|))))) is different from false [2024-11-09 05:32:14,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403080192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:14,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:32:14,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 14] total 31 [2024-11-09 05:32:14,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910830705] [2024-11-09 05:32:14,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:32:14,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 05:32:14,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:32:14,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 05:32:14,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1224, Unknown=53, NotChecked=308, Total=1806 [2024-11-09 05:32:14,223 INFO L87 Difference]: Start difference. First operand 131 states and 186 transitions. Second operand has 32 states, 30 states have (on average 5.6) internal successors, (168), 31 states have internal predecessors, (168), 12 states have call successors, (50), 10 states have call predecessors, (50), 12 states have return successors, (50), 10 states have call predecessors, (50), 12 states have call successors, (50) [2024-11-09 05:32:22,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:22,406 INFO L93 Difference]: Finished difference Result 303 states and 425 transitions. [2024-11-09 05:32:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:32:22,407 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 5.6) internal successors, (168), 31 states have internal predecessors, (168), 12 states have call successors, (50), 10 states have call predecessors, (50), 12 states have return successors, (50), 10 states have call predecessors, (50), 12 states have call successors, (50) Word has length 139 [2024-11-09 05:32:22,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:22,409 INFO L225 Difference]: With dead ends: 303 [2024-11-09 05:32:22,409 INFO L226 Difference]: Without dead ends: 175 [2024-11-09 05:32:22,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 437 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=375, Invalid=1750, Unknown=53, NotChecked=372, Total=2550 [2024-11-09 05:32:22,411 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 548 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:22,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1100 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-09 05:32:22,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-09 05:32:22,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 135. [2024-11-09 05:32:22,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 114 states have (on average 1.3508771929824561) internal successors, (154), 114 states have internal predecessors, (154), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:32:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 188 transitions. [2024-11-09 05:32:22,431 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 188 transitions. Word has length 139 [2024-11-09 05:32:22,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:22,432 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 188 transitions. [2024-11-09 05:32:22,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 5.6) internal successors, (168), 31 states have internal predecessors, (168), 12 states have call successors, (50), 10 states have call predecessors, (50), 12 states have return successors, (50), 10 states have call predecessors, (50), 12 states have call successors, (50) [2024-11-09 05:32:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 188 transitions. [2024-11-09 05:32:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 05:32:22,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:22,435 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:22,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 05:32:22,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:32:22,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:32:23,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:23,036 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:32:23,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:23,037 INFO L85 PathProgramCache]: Analyzing trace with hash -269822468, now seen corresponding path program 1 times [2024-11-09 05:32:23,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:32:23,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464104240] [2024-11-09 05:32:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:23,038 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 [2024-11-09 05:32:23,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:32:23,041 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:32:23,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (9)] Waiting until timeout for monitored process [2024-11-09 05:32:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:23,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:32:23,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:24,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:32:24,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 05:32:24,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-09 05:32:25,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:32:25,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 45 [2024-11-09 05:32:25,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:32:25,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 57 [2024-11-09 05:32:25,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2024-11-09 05:32:25,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2024-11-09 05:32:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-09 05:32:25,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:32:25,687 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:32:25,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464104240] [2024-11-09 05:32:25,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464104240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:25,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:25,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:32:25,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172264161] [2024-11-09 05:32:25,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:25,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:32:25,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:32:25,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:32:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:32:25,689 INFO L87 Difference]: Start difference. First operand 135 states and 188 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 05:32:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:28,907 INFO L93 Difference]: Finished difference Result 349 states and 483 transitions. [2024-11-09 05:32:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:32:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-09 05:32:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:28,910 INFO L225 Difference]: With dead ends: 349 [2024-11-09 05:32:28,910 INFO L226 Difference]: Without dead ends: 217 [2024-11-09 05:32:28,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:32:28,912 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 425 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:28,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 437 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 05:32:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-09 05:32:28,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 160. [2024-11-09 05:32:28,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 138 states have (on average 1.3478260869565217) internal successors, (186), 138 states have internal predecessors, (186), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:32:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 220 transitions. [2024-11-09 05:32:28,940 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 220 transitions. Word has length 141 [2024-11-09 05:32:28,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:28,941 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 220 transitions. [2024-11-09 05:32:28,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-09 05:32:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 220 transitions. [2024-11-09 05:32:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 05:32:28,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:28,943 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:28,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (9)] Ended with exit code 0 [2024-11-09 05:32:29,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:32:29,144 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:32:29,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash -430017355, now seen corresponding path program 1 times [2024-11-09 05:32:29,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:32:29,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509696760] [2024-11-09 05:32:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:29,146 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 [2024-11-09 05:32:29,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:32:29,147 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:32:29,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 05:32:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:29,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:32:29,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:32:29,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:32:29,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:32:29,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509696760] [2024-11-09 05:32:29,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509696760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:29,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:29,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:32:29,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388907268] [2024-11-09 05:32:29,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:29,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:32:29,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:32:29,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:32:29,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:32:29,586 INFO L87 Difference]: Start difference. First operand 160 states and 220 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:32:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:29,656 INFO L93 Difference]: Finished difference Result 323 states and 445 transitions. [2024-11-09 05:32:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:32:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-09 05:32:29,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:29,659 INFO L225 Difference]: With dead ends: 323 [2024-11-09 05:32:29,659 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 05:32:29,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:32:29,660 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:29,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 618 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:32:29,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 05:32:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 162. [2024-11-09 05:32:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 140 states have internal predecessors, (188), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:32:29,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 222 transitions. [2024-11-09 05:32:29,686 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 222 transitions. Word has length 141 [2024-11-09 05:32:29,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:29,687 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 222 transitions. [2024-11-09 05:32:29,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:32:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 222 transitions. [2024-11-09 05:32:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 05:32:29,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:29,690 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:29,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 05:32:29,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:32:29,891 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:32:29,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:29,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1001026511, now seen corresponding path program 1 times [2024-11-09 05:32:29,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:32:29,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343159387] [2024-11-09 05:32:29,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:29,892 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 [2024-11-09 05:32:29,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:32:29,895 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:32:29,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 05:32:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:30,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:32:30,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:32,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:32:32,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2024-11-09 05:32:33,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 53 [2024-11-09 05:32:34,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 53 [2024-11-09 05:32:34,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:32:34,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 37 [2024-11-09 05:32:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:32:35,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:32:35,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:32:35,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343159387] [2024-11-09 05:32:35,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343159387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:35,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:35,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:32:35,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892161520] [2024-11-09 05:32:35,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:35,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:32:35,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:32:35,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:32:35,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:32:35,466 INFO L87 Difference]: Start difference. First operand 162 states and 222 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:32:43,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:45,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:32:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:53,172 INFO L93 Difference]: Finished difference Result 433 states and 591 transitions. [2024-11-09 05:32:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:32:53,181 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-09 05:32:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:53,182 INFO L225 Difference]: With dead ends: 433 [2024-11-09 05:32:53,183 INFO L226 Difference]: Without dead ends: 274 [2024-11-09 05:32:53,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:32:53,184 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 340 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:53,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 443 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 16.0s Time] [2024-11-09 05:32:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-09 05:32:53,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 185. [2024-11-09 05:32:53,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:32:53,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 253 transitions. [2024-11-09 05:32:53,205 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 253 transitions. Word has length 141 [2024-11-09 05:32:53,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:53,205 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 253 transitions. [2024-11-09 05:32:53,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:32:53,206 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 253 transitions. [2024-11-09 05:32:53,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 05:32:53,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:53,208 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:53,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-09 05:32:53,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:32:53,409 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:32:53,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:53,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2022094865, now seen corresponding path program 1 times [2024-11-09 05:32:53,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:32:53,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524859641] [2024-11-09 05:32:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:53,410 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 [2024-11-09 05:32:53,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:32:53,413 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:32:53,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 05:32:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:53,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:32:53,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:56,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:32:56,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2024-11-09 05:32:56,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2024-11-09 05:32:56,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 22 [2024-11-09 05:32:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:32:56,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:32:56,717 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:32:56,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524859641] [2024-11-09 05:32:56,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524859641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:56,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:32:56,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:32:56,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139676466] [2024-11-09 05:32:56,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:56,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:32:56,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:32:56,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:32:56,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:32:56,721 INFO L87 Difference]: Start difference. First operand 185 states and 253 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:00,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:00,110 INFO L93 Difference]: Finished difference Result 430 states and 588 transitions. [2024-11-09 05:33:00,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:33:00,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-09 05:33:00,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:00,113 INFO L225 Difference]: With dead ends: 430 [2024-11-09 05:33:00,113 INFO L226 Difference]: Without dead ends: 248 [2024-11-09 05:33:00,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:33:00,114 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 195 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:00,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 332 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 05:33:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-09 05:33:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186. [2024-11-09 05:33:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 164 states have internal predecessors, (220), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:33:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 254 transitions. [2024-11-09 05:33:00,142 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 254 transitions. Word has length 141 [2024-11-09 05:33:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:00,143 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 254 transitions. [2024-11-09 05:33:00,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 254 transitions. [2024-11-09 05:33:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 05:33:00,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:00,145 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:00,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-09 05:33:00,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:33:00,345 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:33:00,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:00,346 INFO L85 PathProgramCache]: Analyzing trace with hash -894619574, now seen corresponding path program 1 times [2024-11-09 05:33:00,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:33:00,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509379867] [2024-11-09 05:33:00,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:00,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:33:00,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:33:00,348 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:33:00,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 05:33:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:00,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:33:00,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:03,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:33:03,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2024-11-09 05:33:03,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2024-11-09 05:33:03,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2024-11-09 05:33:03,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 23 [2024-11-09 05:33:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:33:03,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:33:03,725 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:33:03,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509379867] [2024-11-09 05:33:03,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509379867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:03,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:33:03,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:33:03,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772509824] [2024-11-09 05:33:03,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:03,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:33:03,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:33:03,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:33:03,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:33:03,727 INFO L87 Difference]: Start difference. First operand 186 states and 254 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:07,238 INFO L93 Difference]: Finished difference Result 388 states and 529 transitions. [2024-11-09 05:33:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:33:07,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-09 05:33:07,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:07,241 INFO L225 Difference]: With dead ends: 388 [2024-11-09 05:33:07,241 INFO L226 Difference]: Without dead ends: 205 [2024-11-09 05:33:07,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:33:07,242 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 170 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:07,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 335 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 05:33:07,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-09 05:33:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 186. [2024-11-09 05:33:07,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 164 states have (on average 1.329268292682927) internal successors, (218), 164 states have internal predecessors, (218), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:33:07,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 252 transitions. [2024-11-09 05:33:07,273 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 252 transitions. Word has length 143 [2024-11-09 05:33:07,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:07,274 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 252 transitions. [2024-11-09 05:33:07,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 252 transitions. [2024-11-09 05:33:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 05:33:07,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:07,275 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:07,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:07,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:33:07,476 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:33:07,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:07,477 INFO L85 PathProgramCache]: Analyzing trace with hash 792931647, now seen corresponding path program 1 times [2024-11-09 05:33:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:33:07,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933137528] [2024-11-09 05:33:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:07,477 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 [2024-11-09 05:33:07,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:33:07,478 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:33:07,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-09 05:33:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:08,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:33:08,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:09,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:33:09,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 05:33:09,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 05:33:09,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:33:09,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2024-11-09 05:33:09,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-09 05:33:09,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-09 05:33:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:33:10,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:33:10,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:33:10,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933137528] [2024-11-09 05:33:10,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933137528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:10,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:33:10,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 05:33:10,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787813483] [2024-11-09 05:33:10,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:10,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:33:10,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:33:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:33:10,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:33:10,194 INFO L87 Difference]: Start difference. First operand 186 states and 252 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:14,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:14,147 INFO L93 Difference]: Finished difference Result 455 states and 616 transitions. [2024-11-09 05:33:14,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:33:14,149 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-09 05:33:14,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:14,151 INFO L225 Difference]: With dead ends: 455 [2024-11-09 05:33:14,151 INFO L226 Difference]: Without dead ends: 272 [2024-11-09 05:33:14,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:33:14,152 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 259 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:14,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 655 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 05:33:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-09 05:33:14,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 210. [2024-11-09 05:33:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 188 states have (on average 1.3404255319148937) internal successors, (252), 188 states have internal predecessors, (252), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:33:14,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 286 transitions. [2024-11-09 05:33:14,180 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 286 transitions. Word has length 143 [2024-11-09 05:33:14,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:14,185 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 286 transitions. [2024-11-09 05:33:14,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:14,186 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 286 transitions. [2024-11-09 05:33:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 05:33:14,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:14,191 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:14,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:14,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:33:14,391 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:33:14,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:14,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1792794163, now seen corresponding path program 1 times [2024-11-09 05:33:14,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:33:14,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496615031] [2024-11-09 05:33:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:14,393 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 [2024-11-09 05:33:14,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:33:14,394 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:33:14,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (15)] Waiting until timeout for monitored process [2024-11-09 05:33:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:15,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:33:15,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:16,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:33:16,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 05:33:16,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-09 05:33:17,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:33:17,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2024-11-09 05:33:17,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-11-09 05:33:17,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-11-09 05:33:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-09 05:33:17,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:33:17,521 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:33:17,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496615031] [2024-11-09 05:33:17,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496615031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:17,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:33:17,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:33:17,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711406535] [2024-11-09 05:33:17,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:17,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:33:17,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:33:17,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:33:17,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:33:17,523 INFO L87 Difference]: Start difference. First operand 210 states and 286 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:33:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:20,689 INFO L93 Difference]: Finished difference Result 441 states and 599 transitions. [2024-11-09 05:33:20,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:33:20,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-09 05:33:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:20,692 INFO L225 Difference]: With dead ends: 441 [2024-11-09 05:33:20,692 INFO L226 Difference]: Without dead ends: 234 [2024-11-09 05:33:20,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:33:20,693 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 270 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:20,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 463 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 05:33:20,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-09 05:33:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 196. [2024-11-09 05:33:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 174 states have (on average 1.339080459770115) internal successors, (233), 174 states have internal predecessors, (233), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:33:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 267 transitions. [2024-11-09 05:33:20,713 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 267 transitions. Word has length 143 [2024-11-09 05:33:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:20,714 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 267 transitions. [2024-11-09 05:33:20,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:33:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 267 transitions. [2024-11-09 05:33:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-09 05:33:20,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:20,716 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:20,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (15)] Ended with exit code 0 [2024-11-09 05:33:20,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:33:20,916 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:33:20,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:20,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1095872484, now seen corresponding path program 1 times [2024-11-09 05:33:20,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:33:20,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419941602] [2024-11-09 05:33:20,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:20,918 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 [2024-11-09 05:33:20,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:33:20,922 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:33:20,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (16)] Waiting until timeout for monitored process [2024-11-09 05:33:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:21,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:33:21,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:21,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 05:33:22,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:22,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:22,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:22,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:23,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:23,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:23,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:23,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 05:33:24,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 13 proven. 358 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-09 05:33:24,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:33:24,418 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:33:24,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419941602] [2024-11-09 05:33:24,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419941602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:33:24,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [92980828] [2024-11-09 05:33:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:24,419 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:33:24,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:33:24,422 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:33:24,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 05:33:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:25,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:33:25,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:25,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 05:33:26,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:26,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:26,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:26,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:27,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:27,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:27,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:27,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:28,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2024-11-09 05:33:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-09 05:33:28,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:33:28,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [92980828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:33:28,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563002941] [2024-11-09 05:33:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:28,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:28,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:33:28,462 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:33:28,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:33:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:28,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:33:28,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:29,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 05:33:29,816 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:33:29,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:33:29,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563002941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:29,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:33:29,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 8] total 18 [2024-11-09 05:33:29,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805536566] [2024-11-09 05:33:29,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:29,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:33:29,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:33:29,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:33:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:33:29,819 INFO L87 Difference]: Start difference. First operand 196 states and 267 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:31,146 INFO L93 Difference]: Finished difference Result 380 states and 517 transitions. [2024-11-09 05:33:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:33:31,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-09 05:33:31,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:31,148 INFO L225 Difference]: With dead ends: 380 [2024-11-09 05:33:31,148 INFO L226 Difference]: Without dead ends: 187 [2024-11-09 05:33:31,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 464 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:33:31,149 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 97 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:31,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 319 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:33:31,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-09 05:33:31,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2024-11-09 05:33:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 163 states have (on average 1.3251533742331287) internal successors, (216), 163 states have internal predecessors, (216), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:33:31,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 250 transitions. [2024-11-09 05:33:31,165 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 250 transitions. Word has length 144 [2024-11-09 05:33:31,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:31,166 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 250 transitions. [2024-11-09 05:33:31,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:31,166 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 250 transitions. [2024-11-09 05:33:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 05:33:31,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:31,167 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:31,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-09 05:33:31,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:33:31,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (16)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:31,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:33:31,768 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:33:31,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1147787181, now seen corresponding path program 1 times [2024-11-09 05:33:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:33:31,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955779414] [2024-11-09 05:33:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:31,770 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 [2024-11-09 05:33:31,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:33:31,771 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:33:31,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (19)] Waiting until timeout for monitored process [2024-11-09 05:33:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:32,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:33:32,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:32,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:33:32,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 46 [2024-11-09 05:33:32,971 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-09 05:33:32,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:33:32,971 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:33:32,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955779414] [2024-11-09 05:33:32,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955779414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:33:32,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:33:32,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 05:33:32,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381890470] [2024-11-09 05:33:32,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:33:32,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:33:32,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:33:32,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:33:32,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:33:32,973 INFO L87 Difference]: Start difference. First operand 185 states and 250 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:35,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:35,670 INFO L93 Difference]: Finished difference Result 404 states and 542 transitions. [2024-11-09 05:33:35,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:33:35,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-09 05:33:35,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:35,673 INFO L225 Difference]: With dead ends: 404 [2024-11-09 05:33:35,673 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 05:33:35,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:33:35,674 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 38 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:35,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 681 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 05:33:35,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 05:33:35,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 192. [2024-11-09 05:33:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 170 states have (on average 1.311764705882353) internal successors, (223), 170 states have internal predecessors, (223), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:33:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 257 transitions. [2024-11-09 05:33:35,693 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 257 transitions. Word has length 145 [2024-11-09 05:33:35,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:35,693 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 257 transitions. [2024-11-09 05:33:35,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-09 05:33:35,694 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 257 transitions. [2024-11-09 05:33:35,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 05:33:35,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:35,695 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:35,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (19)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:35,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:33:35,896 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:33:35,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:35,896 INFO L85 PathProgramCache]: Analyzing trace with hash 796761418, now seen corresponding path program 1 times [2024-11-09 05:33:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:33:35,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456293021] [2024-11-09 05:33:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:35,897 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 [2024-11-09 05:33:35,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:33:35,898 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:33:35,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/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 (20)] Waiting until timeout for monitored process [2024-11-09 05:33:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:57,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 05:33:57,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:58,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 05:33:59,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-09 05:34:00,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-09 05:34:01,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-09 05:34:02,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-09 05:34:02,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-09 05:34:03,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-09 05:34:03,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-09 05:34:03,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:34:03,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 93 [2024-11-09 05:34:05,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:34:05,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 84 [2024-11-09 05:34:15,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:34:15,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 311 treesize of output 119 [2024-11-09 05:34:17,263 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 67 proven. 297 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 05:34:17,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:34:57,045 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_588 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_133| (_ BitVec 32)) (v_ArrVal_589 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_588) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_589) |c_~#float_Array_0~0.base|))) (let ((.cse2 (let ((.cse5 (select .cse4 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_133|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_133|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_133|))) (.cse1 (fp.sub c_currentRoundingMode (fp.neg .cse2) (let ((.cse3 (select .cse4 (bvadd (_ bv16 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) (or (not (= .cse0 .cse1)) (fp.eq .cse0 .cse1) (not (fp.lt .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))))))))) is different from false [2024-11-09 05:34:58,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:34:58,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456293021] [2024-11-09 05:34:58,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456293021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:34:58,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [366710230] [2024-11-09 05:34:58,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:58,286 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:34:58,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:34:58,289 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:34:58,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-09 05:36:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:01,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-09 05:36:01,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:36:02,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 05:36:07,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-09 05:36:07,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-09 05:36:20,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-09 05:36:22,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-09 05:36:24,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-09 05:36:25,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-09 05:36:26,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-09 05:36:27,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-09 05:36:29,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-09 05:36:33,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 98 [2024-11-09 05:36:37,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 93 [2024-11-09 05:36:54,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 132 [2024-11-09 05:36:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 83 proven. 297 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 05:36:56,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:37:22,121 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_133| (_ BitVec 32)) (v_ArrVal_627 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_628 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (store (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_627) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_628) |c_~#float_Array_0~0.base|))) (let ((.cse2 (let ((.cse5 (select .cse4 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_133|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_133|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_133|))) (.cse1 (fp.sub c_currentRoundingMode (fp.neg .cse2) (let ((.cse3 (select .cse4 (bvadd (_ bv16 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) (or (not (= .cse0 .cse1)) (fp.eq .cse0 .cse1) (not (fp.lt .cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))))))))) is different from false [2024-11-09 05:37:23,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [366710230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:37:23,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670901190] [2024-11-09 05:37:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:23,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:37:23,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:37:23,066 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:37:23,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4349f9e3-37b9-41d0-9d98-a46259c8c363/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:45:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:03,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-09 05:45:03,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:06,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 05:45:12,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-09 05:45:13,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-09 05:45:26,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 88 [2024-11-09 05:45:27,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 88 [2024-11-09 05:45:29,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 88 [2024-11-09 05:45:30,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 88 [2024-11-09 05:45:31,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 88 [2024-11-09 05:45:31,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 88 [2024-11-09 05:45:33,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 88 [2024-11-09 05:45:36,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:45:36,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 199 treesize of output 106 [2024-11-09 05:45:41,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:45:41,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 199 treesize of output 97 [2024-11-09 05:45:55,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:45:55,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 336 treesize of output 132 [2024-11-09 05:45:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 68 proven. 315 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-09 05:45:57,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:07,066 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_670 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_133| (_ BitVec 32))) (let ((.cse4 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_670) |c_~#float_Array_0~0.base|))) (let ((.cse0 (let ((.cse5 (select .cse4 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_133|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_133|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_133|))) (.cse2 (fp.sub c_currentRoundingMode (fp.neg .cse0) (let ((.cse3 (select .cse4 (bvadd (_ bv16 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) (or (not (fp.lt .cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (fp.eq .cse1 .cse2) (not (= .cse1 .cse2))))))) is different from false [2024-11-09 05:46:27,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670901190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:46:27,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:46:27,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26, 28] total 67 [2024-11-09 05:46:27,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811261037] [2024-11-09 05:46:27,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:46:27,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-11-09 05:46:27,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:46:27,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-11-09 05:46:27,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=648, Invalid=5284, Unknown=86, NotChecked=462, Total=6480 [2024-11-09 05:46:27,286 INFO L87 Difference]: Start difference. First operand 192 states and 257 transitions. Second operand has 68 states, 65 states have (on average 3.1076923076923078) internal successors, (202), 64 states have internal predecessors, (202), 13 states have call successors, (49), 13 states have call predecessors, (49), 14 states have return successors, (50), 10 states have call predecessors, (50), 13 states have call successors, (50)