./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca2f933d67faf408af35a2606c62cae5d484e0ad1d571925efee98edf8420268 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:49:41,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:49:41,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:49:41,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:49:41,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:49:42,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:49:42,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:49:42,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:49:42,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:49:42,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:49:42,025 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:49:42,026 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:49:42,026 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:49:42,026 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:49:42,026 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:49:42,026 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:49:42,026 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:49:42,027 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:49:42,027 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:49:42,027 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:49:42,027 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:49:42,027 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:49:42,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:49:42,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:49:42,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:49:42,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:49:42,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:49:42,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:49:42,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:49:42,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:49:42,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:49:42,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:49:42,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:49:42,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:49:42,030 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:49:42,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:49:42,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:49:42,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:49:42,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:49:42,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:49:42,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:49:42,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:49:42,031 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:49:42,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:49:42,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:49:42,032 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:49:42,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:49:42,032 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca2f933d67faf408af35a2606c62cae5d484e0ad1d571925efee98edf8420268 [2024-11-13 23:49:42,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:49:42,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:49:42,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:49:42,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:49:42,364 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:49:42,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i Unable to find full path for "g++" [2024-11-13 23:49:44,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:49:45,136 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:49:45,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i [2024-11-13 23:49:45,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data/90450e998/0aac3f77b0944d8380d661329bc8b4e6/FLAG650dab3e8 [2024-11-13 23:49:45,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data/90450e998/0aac3f77b0944d8380d661329bc8b4e6 [2024-11-13 23:49:45,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:49:45,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:49:45,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:49:45,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:49:45,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:49:45,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424400db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45, skipping insertion in model container [2024-11-13 23:49:45,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:49:45,423 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_d87d84c7-db30-4b4a-a1c6-604c270031b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i[915,928] [2024-11-13 23:49:45,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:49:45,522 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:49:45,534 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_d87d84c7-db30-4b4a-a1c6-604c270031b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i[915,928] [2024-11-13 23:49:45,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:49:45,633 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:49:45,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45 WrapperNode [2024-11-13 23:49:45,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:49:45,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:49:45,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:49:45,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:49:45,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,714 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 417 [2024-11-13 23:49:45,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:49:45,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:49:45,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:49:45,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:49:45,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:49:45,771 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:49:45,771 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:49:45,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:49:45,773 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (1/1) ... [2024-11-13 23:49:45,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:49:45,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:49:45,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:49:45,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:49:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:49:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:49:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:49:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:49:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:49:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:49:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:49:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:49:46,053 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:49:46,056 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:49:46,816 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-13 23:49:46,816 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:49:47,403 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:49:47,403 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:49:47,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:49:47 BoogieIcfgContainer [2024-11-13 23:49:47,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:49:47,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:49:47,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:49:47,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:49:47,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:49:45" (1/3) ... [2024-11-13 23:49:47,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f8d556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:49:47, skipping insertion in model container [2024-11-13 23:49:47,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:45" (2/3) ... [2024-11-13 23:49:47,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f8d556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:49:47, skipping insertion in model container [2024-11-13 23:49:47,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:49:47" (3/3) ... [2024-11-13 23:49:47,420 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-5.i [2024-11-13 23:49:47,444 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:49:47,447 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-5.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:49:47,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:49:47,550 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;@684fca8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:49:47,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:49:47,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:49:47,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 23:49:47,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:47,572 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:49:47,573 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:47,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:47,579 INFO L85 PathProgramCache]: Analyzing trace with hash 472328225, now seen corresponding path program 1 times [2024-11-13 23:49:47,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:49:47,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565801626] [2024-11-13 23:49:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:47,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:49:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:49:50,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121830605] [2024-11-13 23:49:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:50,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:49:50,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:49:50,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:49:50,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:49:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:51,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-13 23:49:51,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:49:51,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:51,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:51,671 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 [2024-11-13 23:49:52,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:52,620 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 0 case distinctions, treesize of input 39 treesize of output 28 [2024-11-13 23:49:52,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 9 [2024-11-13 23:49:53,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:53,287 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 23 treesize of output 16 [2024-11-13 23:49:53,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:53,858 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 23 treesize of output 16 [2024-11-13 23:49:54,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:54,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-11-13 23:49:55,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:55,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 33 [2024-11-13 23:49:56,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:56,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 33 [2024-11-13 23:49:57,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:57,235 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 0 case distinctions, treesize of input 42 treesize of output 31 [2024-11-13 23:49:58,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:49:58,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 53 treesize of output 43 [2024-11-13 23:50:03,877 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 112 proven. 192 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-13 23:50:03,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:50:53,402 WARN L286 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:51:05,415 WARN L286 SmtUtils]: Spent 7.24s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:53:22,380 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:53:32,606 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:58:02,850 WARN L286 SmtUtils]: Spent 10.79s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:58:10,401 WARN L286 SmtUtils]: Spent 7.55s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:58:18,615 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:58:33,395 WARN L286 SmtUtils]: Spent 10.18s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:58:38,742 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:58:48,408 WARN L286 SmtUtils]: Spent 9.67s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:58:53,479 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:59:04,349 WARN L286 SmtUtils]: Spent 6.86s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:59:14,461 WARN L286 SmtUtils]: Spent 10.11s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:59:21,090 WARN L286 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:59:30,494 WARN L286 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:59:40,354 WARN L286 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:59:50,845 WARN L286 SmtUtils]: Spent 10.49s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 23:59:57,403 WARN L286 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:00:05,508 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:00:19,266 WARN L286 SmtUtils]: Spent 9.06s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:00:33,256 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:00:41,917 WARN L286 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:00:47,967 WARN L286 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:00:56,365 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:01:03,353 WARN L286 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 00:01:05,194 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-14 00:01:05,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 00:01:05,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565801626] [2024-11-14 00:01:05,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 00:01:05,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121830605] [2024-11-14 00:01:05,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2024-11-14 00:01:05,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1185954555] [2024-11-14 00:01:05,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-14 00:01:05,251 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-14 00:01:05,256 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 00:01:05,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 00:01:05,268 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 00:01:05,268 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 00:01:05,404 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:326) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:220) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 44 more [2024-11-14 00:01:05,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:05,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2024-11-14 00:01:05,412 ERROR L171 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2024-11-14 00:01:05,417 INFO L325 BasicCegarLoop]: Counterexample might be feasible [2024-11-14 00:01:05,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 00:01:05,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 00:01:05,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 00:01:05,636 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 00:01:05,675 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 00:01:05,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 12:01:05 BoogieIcfgContainer [2024-11-14 00:01:05,684 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 00:01:05,685 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 00:01:05,685 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 00:01:05,685 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 00:01:05,686 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:49:47" (3/4) ... [2024-11-14 00:01:05,690 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 00:01:05,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 00:01:05,700 INFO L158 Benchmark]: Toolchain (without parser) took 680526.79ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 91.5MB in the beginning and 159.0MB in the end (delta: -67.5MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. [2024-11-14 00:01:05,701 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 00:01:05,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.93ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 75.6MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 00:01:05,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.65ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 71.5MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 00:01:05,703 INFO L158 Benchmark]: Boogie Preprocessor took 55.67ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 68.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 00:01:05,703 INFO L158 Benchmark]: RCFGBuilder took 1634.91ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 40.1MB in the end (delta: 28.5MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-14 00:01:05,708 INFO L158 Benchmark]: TraceAbstraction took 678275.54ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 39.4MB in the beginning and 159.0MB in the end (delta: -119.6MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2024-11-14 00:01:05,709 INFO L158 Benchmark]: Witness Printer took 14.22ms. Allocated memory is still 310.4MB. Free memory is still 159.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 00:01:05,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.93ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 75.6MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.65ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 71.5MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.67ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 68.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1634.91ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 40.1MB in the end (delta: 28.5MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * TraceAbstraction took 678275.54ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 39.4MB in the beginning and 159.0MB in the end (delta: -119.6MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. * Witness Printer took 14.22ms. Allocated memory is still 310.4MB. Free memory is still 159.0MB. 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: unable to decide satisfiability of path constraint. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] signed long int signed_long_int_Array_0[1] = { 0 }; [L28-L30] signed short int signed_short_int_Array_0[2][3] = { {-10, 4, 0}, {2, -1, 10000} }; [L31-L33] unsigned char unsigned_char_Array_0[2][2] = { {100, 4}, {10, 128} }; [L34-L36] unsigned short int unsigned_short_int_Array_0[3] = { 25, 20416, 21022 }; [L37] signed short int last_1_signed_short_int_Array_0_0__0_ = -10; [L38] unsigned short int last_1_unsigned_short_int_Array_0_0_ = 25; [L106] isInitial = 1 [L107] FCALL initially() [L108] COND TRUE 1 [L109] CALL updateLastVariables() [L98] EXPR signed_short_int_Array_0[0][0] [L98] last_1_signed_short_int_Array_0_0__0_ = signed_short_int_Array_0[0][0] [L99] EXPR unsigned_short_int_Array_0[0] [L99] last_1_unsigned_short_int_Array_0_0_ = unsigned_short_int_Array_0[0] [L109] RET updateLastVariables() [L110] CALL updateVariables() [L67] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L68] EXPR BOOL_unsigned_char_Array_0[0] [L68] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) [L69] EXPR BOOL_unsigned_char_Array_0[0] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) [L70] signed_short_int_Array_0[1][0] = __VERIFIER_nondet_short() [L71] EXPR signed_short_int_Array_0[1][0] [L71] CALL assume_abort_if_not(signed_short_int_Array_0[1][0] >= 0) [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(signed_short_int_Array_0[1][0] >= 0) [L72] EXPR signed_short_int_Array_0[1][0] [L72] CALL assume_abort_if_not(signed_short_int_Array_0[1][0] <= 32767) [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(signed_short_int_Array_0[1][0] <= 32767) [L73] signed_short_int_Array_0[0][1] = __VERIFIER_nondet_short() [L74] EXPR signed_short_int_Array_0[0][1] [L74] CALL assume_abort_if_not(signed_short_int_Array_0[0][1] >= 0) [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(signed_short_int_Array_0[0][1] >= 0) [L75] EXPR signed_short_int_Array_0[0][1] [L75] CALL assume_abort_if_not(signed_short_int_Array_0[0][1] <= 32766) [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(signed_short_int_Array_0[0][1] <= 32766) [L76] signed_short_int_Array_0[0][2] = __VERIFIER_nondet_short() [L77] EXPR signed_short_int_Array_0[0][2] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[0][2] >= 0) [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(signed_short_int_Array_0[0][2] >= 0) [L78] EXPR signed_short_int_Array_0[0][2] [L78] CALL assume_abort_if_not(signed_short_int_Array_0[0][2] <= 32766) [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(signed_short_int_Array_0[0][2] <= 32766) [L79] unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L80] EXPR unsigned_char_Array_0[0][0] [L80] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) [L81] EXPR unsigned_char_Array_0[0][0] [L81] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] <= 254) [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(unsigned_char_Array_0[0][0] <= 254) [L82] unsigned_char_Array_0[0][1] = __VERIFIER_nondet_uchar() [L83] EXPR unsigned_char_Array_0[0][1] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0][1] >= 0) [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(unsigned_char_Array_0[0][1] >= 0) [L84] EXPR unsigned_char_Array_0[0][1] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0][1] <= 255) [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_char_Array_0[0][1] <= 255) [L85] EXPR unsigned_char_Array_0[0][1] [L85] CALL assume_abort_if_not(unsigned_char_Array_0[0][1] != 0) [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(unsigned_char_Array_0[0][1] != 0) [L86] unsigned_char_Array_0[1][1] = __VERIFIER_nondet_uchar() [L87] EXPR unsigned_char_Array_0[1][1] [L87] CALL assume_abort_if_not(unsigned_char_Array_0[1][1] >= 0) [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(unsigned_char_Array_0[1][1] >= 0) [L88] EXPR unsigned_char_Array_0[1][1] [L88] CALL assume_abort_if_not(unsigned_char_Array_0[1][1] <= 255) [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(unsigned_char_Array_0[1][1] <= 255) [L89] EXPR unsigned_char_Array_0[1][1] [L89] CALL assume_abort_if_not(unsigned_char_Array_0[1][1] != 0) [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(unsigned_char_Array_0[1][1] != 0) [L90] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L91] EXPR unsigned_short_int_Array_0[1] [L91] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] >= 16383) [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(unsigned_short_int_Array_0[1] >= 16383) [L92] EXPR unsigned_short_int_Array_0[1] [L92] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 32767) [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 32767) [L93] unsigned_short_int_Array_0[2] = __VERIFIER_nondet_ushort() [L94] EXPR unsigned_short_int_Array_0[2] [L94] CALL assume_abort_if_not(unsigned_short_int_Array_0[2] >= 16383) [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(unsigned_short_int_Array_0[2] >= 16383) [L95] EXPR unsigned_short_int_Array_0[2] [L95] CALL assume_abort_if_not(unsigned_short_int_Array_0[2] <= 32767) [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(unsigned_short_int_Array_0[2] <= 32767) [L110] RET updateVariables() [L111] CALL step() [L42] EXPR signed_short_int_Array_0[0][2] [L42] EXPR signed_short_int_Array_0[1][0] [L42] signed long int stepLocal_2 = last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]); [L43] signed long int stepLocal_1 = last_1_unsigned_short_int_Array_0_0_; [L44] BOOL_unsigned_char_Array_0[0] [L44] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L55] EXPR unsigned_char_Array_0[0][0] [L55] EXPR unsigned_char_Array_0[1][0] [L55] EXPR unsigned_char_Array_0[0][1] [L55] EXPR unsigned_char_Array_0[1][1] [L55] COND FALSE !(unsigned_char_Array_0[0][0] <= ((unsigned_char_Array_0[1][0] / unsigned_char_Array_0[0][1]) * (2 % unsigned_char_Array_0[1][1]))) [L58] EXPR unsigned_char_Array_0[1][0] [L58] EXPR unsigned_char_Array_0[1][0] [L58] signed long int stepLocal_0 = unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]; [L59] EXPR unsigned_short_int_Array_0[0] [L59] EXPR unsigned_short_int_Array_0[0] [L59] COND FALSE !((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= stepLocal_0) [L62] signed_long_int_Array_0[0] = -4 [L63] EXPR unsigned_char_Array_0[1][0] [L63] signed_short_int_Array_0[1][1] = unsigned_char_Array_0[1][0] [L64] EXPR unsigned_char_Array_0[0][0] [L64] signed_short_int_Array_0[0][0] = unsigned_char_Array_0[0][0] [L111] RET step() [L112] CALL, EXPR property() [L102] EXPR unsigned_short_int_Array_0[0] [L102] EXPR unsigned_short_int_Array_0[0] [L102] EXPR unsigned_char_Array_0[1][0] [L102] EXPR unsigned_char_Array_0[1][0] [L102] EXPR ((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1 [L102] EXPR signed_short_int_Array_0[1][2] [L102] EXPR unsigned_char_Array_0[1][0] [L102] EXPR unsigned_char_Array_0[1][0] [L102] EXPR ((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) [L102] EXPR unsigned_char_Array_0[1][0] [L102] EXPR unsigned_char_Array_0[1][0] [L102] EXPR ((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) [L102] EXPR ((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1 [L102] EXPR (((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1) && (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[0][1] > (last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]))) ? ((last_1_unsigned_short_int_Array_0_0_ < (~ last_1_signed_short_int_Array_0_0__0_)) ? (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0])) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : 1) [L102] EXPR ((((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1) && (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[0][1] > (last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]))) ? ((last_1_unsigned_short_int_Array_0_0_ < (~ last_1_signed_short_int_Array_0_0__0_)) ? (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0])) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : 1)) && ((unsigned_char_Array_0[0][0] <= ((unsigned_char_Array_0[1][0] / unsigned_char_Array_0[0][1]) * (2 % unsigned_char_Array_0[1][1]))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[1][0] + (((((unsigned_short_int_Array_0[1]) > (unsigned_short_int_Array_0[2])) ? (unsigned_short_int_Array_0[1]) : (unsigned_short_int_Array_0[2]))) - unsigned_char_Array_0[1][1])))) : 1) [L102] EXPR (((((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1) && (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[0][1] > (last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]))) ? ((last_1_unsigned_short_int_Array_0_0_ < (~ last_1_signed_short_int_Array_0_0__0_)) ? (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0])) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : 1)) && ((unsigned_char_Array_0[0][0] <= ((unsigned_char_Array_0[1][0] / unsigned_char_Array_0[0][1]) * (2 % unsigned_char_Array_0[1][1]))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[1][0] + (((((unsigned_short_int_Array_0[1]) > (unsigned_short_int_Array_0[2])) ? (unsigned_short_int_Array_0[1]) : (unsigned_short_int_Array_0[2]))) - unsigned_char_Array_0[1][1])))) : 1)) && (signed_long_int_Array_0[0] == ((signed long int) -4)) [L102] EXPR ((((((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1) && (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[0][1] > (last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]))) ? ((last_1_unsigned_short_int_Array_0_0_ < (~ last_1_signed_short_int_Array_0_0__0_)) ? (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0])) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : 1)) && ((unsigned_char_Array_0[0][0] <= ((unsigned_char_Array_0[1][0] / unsigned_char_Array_0[0][1]) * (2 % unsigned_char_Array_0[1][1]))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[1][0] + (((((unsigned_short_int_Array_0[1]) > (unsigned_short_int_Array_0[2])) ? (unsigned_short_int_Array_0[1]) : (unsigned_short_int_Array_0[2]))) - unsigned_char_Array_0[1][1])))) : 1)) && (signed_long_int_Array_0[0] == ((signed long int) -4))) && (signed_short_int_Array_0[1][1] == ((signed short int) unsigned_char_Array_0[1][0])) [L102] EXPR signed_short_int_Array_0[1][1] [L102] EXPR unsigned_char_Array_0[1][0] [L102] EXPR ((((((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1) && (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[0][1] > (last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]))) ? ((last_1_unsigned_short_int_Array_0_0_ < (~ last_1_signed_short_int_Array_0_0__0_)) ? (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0])) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : 1)) && ((unsigned_char_Array_0[0][0] <= ((unsigned_char_Array_0[1][0] / unsigned_char_Array_0[0][1]) * (2 % unsigned_char_Array_0[1][1]))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[1][0] + (((((unsigned_short_int_Array_0[1]) > (unsigned_short_int_Array_0[2])) ? (unsigned_short_int_Array_0[1]) : (unsigned_short_int_Array_0[2]))) - unsigned_char_Array_0[1][1])))) : 1)) && (signed_long_int_Array_0[0] == ((signed long int) -4))) && (signed_short_int_Array_0[1][1] == ((signed short int) unsigned_char_Array_0[1][0])) [L102] EXPR (((((((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1) && (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[0][1] > (last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]))) ? ((last_1_unsigned_short_int_Array_0_0_ < (~ last_1_signed_short_int_Array_0_0__0_)) ? (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0])) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : 1)) && ((unsigned_char_Array_0[0][0] <= ((unsigned_char_Array_0[1][0] / unsigned_char_Array_0[0][1]) * (2 % unsigned_char_Array_0[1][1]))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[1][0] + (((((unsigned_short_int_Array_0[1]) > (unsigned_short_int_Array_0[2])) ? (unsigned_short_int_Array_0[1]) : (unsigned_short_int_Array_0[2]))) - unsigned_char_Array_0[1][1])))) : 1)) && (signed_long_int_Array_0[0] == ((signed long int) -4))) && (signed_short_int_Array_0[1][1] == ((signed short int) unsigned_char_Array_0[1][0]))) && (signed_short_int_Array_0[0][0] == ((signed short int) unsigned_char_Array_0[0][0])) [L102-L103] return (((((((unsigned_short_int_Array_0[0] - unsigned_short_int_Array_0[0]) >= (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0])) ? (signed_short_int_Array_0[1][2] == ((signed short int) ((((unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) < 0 ) ? -(unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]) : (unsigned_char_Array_0[1][0] - unsigned_char_Array_0[1][0]))))) : 1) && (BOOL_unsigned_char_Array_0[0] ? ((signed_short_int_Array_0[0][1] > (last_1_unsigned_short_int_Array_0_0_ + (signed_short_int_Array_0[0][2] - signed_short_int_Array_0[1][0]))) ? ((last_1_unsigned_short_int_Array_0_0_ < (~ last_1_signed_short_int_Array_0_0__0_)) ? (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0])) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : (unsigned_char_Array_0[1][0] == ((unsigned char) unsigned_char_Array_0[0][0]))) : 1)) && ((unsigned_char_Array_0[0][0] <= ((unsigned_char_Array_0[1][0] / unsigned_char_Array_0[0][1]) * (2 % unsigned_char_Array_0[1][1]))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) (unsigned_char_Array_0[1][0] + (((((unsigned_short_int_Array_0[1]) > (unsigned_short_int_Array_0[2])) ? (unsigned_short_int_Array_0[1]) : (unsigned_short_int_Array_0[2]))) - unsigned_char_Array_0[1][1])))) : 1)) && (signed_long_int_Array_0[0] == ((signed long int) -4))) && (signed_short_int_Array_0[1][1] == ((signed short int) unsigned_char_Array_0[1][0]))) && (signed_short_int_Array_0[0][0] == ((signed short int) unsigned_char_Array_0[0][0])) ; [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 678.1s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 3.2s SatisfiabilityAnalysisTime, 673.9s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 4481 SizeOfPredicates, 23 NumberOfNonLiveVariables, 342 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 188/380 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 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca2f933d67faf408af35a2606c62cae5d484e0ad1d571925efee98edf8420268 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 00:01:09,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 00:01:09,271 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 00:01:09,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 00:01:09,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 00:01:09,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 00:01:09,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 00:01:09,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 00:01:09,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 00:01:09,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 00:01:09,335 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 00:01:09,335 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 00:01:09,335 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 00:01:09,335 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 00:01:09,336 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 00:01:09,336 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 00:01:09,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 00:01:09,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 00:01:09,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 00:01:09,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 00:01:09,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 00:01:09,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 00:01:09,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 00:01:09,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 00:01:09,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 00:01:09,339 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 00:01:09,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 00:01:09,339 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 00:01:09,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 00:01:09,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 00:01:09,339 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 00:01:09,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 00:01:09,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 00:01:09,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 00:01:09,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 00:01:09,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 00:01:09,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 00:01:09,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 00:01:09,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 00:01:09,342 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 00:01:09,342 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 00:01:09,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 00:01:09,342 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 00:01:09,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca2f933d67faf408af35a2606c62cae5d484e0ad1d571925efee98edf8420268 [2024-11-14 00:01:09,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 00:01:09,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 00:01:09,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 00:01:09,835 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 00:01:09,835 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 00:01:09,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i Unable to find full path for "g++" [2024-11-14 00:01:12,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 00:01:12,767 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 00:01:12,770 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i [2024-11-14 00:01:12,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data/1f5efff2a/e85ce61ff63c4fb6b812fb4422d37e50/FLAG0d0fccc40 [2024-11-14 00:01:12,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/data/1f5efff2a/e85ce61ff63c4fb6b812fb4422d37e50 [2024-11-14 00:01:12,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 00:01:12,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 00:01:12,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 00:01:12,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 00:01:12,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 00:01:12,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 12:01:12" (1/1) ... [2024-11-14 00:01:12,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd2974b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:12, skipping insertion in model container [2024-11-14 00:01:12,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 12:01:12" (1/1) ... [2024-11-14 00:01:12,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 00:01:13,061 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_d87d84c7-db30-4b4a-a1c6-604c270031b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i[915,928] [2024-11-14 00:01:13,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 00:01:13,219 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 00:01:13,236 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_d87d84c7-db30-4b4a-a1c6-604c270031b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-5.i[915,928] [2024-11-14 00:01:13,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 00:01:13,397 INFO L204 MainTranslator]: Completed translation [2024-11-14 00:01:13,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13 WrapperNode [2024-11-14 00:01:13,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 00:01:13,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 00:01:13,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 00:01:13,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 00:01:13,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,498 INFO L138 Inliner]: procedures = 33, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2024-11-14 00:01:13,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 00:01:13,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 00:01:13,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 00:01:13,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 00:01:13,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,556 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 00:01:13,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 00:01:13,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 00:01:13,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 00:01:13,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (1/1) ... [2024-11-14 00:01:13,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 00:01:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 00:01:13,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 00:01:13,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 00:01:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 00:01:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 00:01:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-14 00:01:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 00:01:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 00:01:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 00:01:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-14 00:01:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 00:01:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 00:01:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 00:01:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 00:01:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 00:01:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-14 00:01:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 00:01:13,783 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 00:01:13,786 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 00:01:14,938 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-14 00:01:14,938 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 00:01:14,962 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 00:01:14,962 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 00:01:14,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 12:01:14 BoogieIcfgContainer [2024-11-14 00:01:14,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 00:01:14,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 00:01:14,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 00:01:14,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 00:01:14,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 12:01:12" (1/3) ... [2024-11-14 00:01:14,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2afce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 12:01:14, skipping insertion in model container [2024-11-14 00:01:14,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 12:01:13" (2/3) ... [2024-11-14 00:01:14,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2afce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 12:01:14, skipping insertion in model container [2024-11-14 00:01:14,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 12:01:14" (3/3) ... [2024-11-14 00:01:14,979 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-5.i [2024-11-14 00:01:15,000 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 00:01:15,003 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-5.i that has 2 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 00:01:15,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 00:01:15,109 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;@33d0cb01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 00:01:15,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 00:01:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 74 states have internal predecessors, (97), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 00:01:15,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:15,130 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:15,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:15,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:15,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1922017129, now seen corresponding path program 1 times [2024-11-14 00:01:15,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:15,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991561215] [2024-11-14 00:01:15,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:15,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:15,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:15,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:15,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 00:01:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:15,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 00:01:15,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-14 00:01:15,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:01:15,691 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:15,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991561215] [2024-11-14 00:01:15,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991561215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:15,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:15,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 00:01:15,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410014004] [2024-11-14 00:01:15,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:15,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 00:01:15,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:01:15,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 00:01:15,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 00:01:15,739 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 74 states have internal predecessors, (97), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 00:01:15,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:15,794 INFO L93 Difference]: Finished difference Result 185 states and 288 transitions. [2024-11-14 00:01:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 00:01:15,796 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-11-14 00:01:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:15,803 INFO L225 Difference]: With dead ends: 185 [2024-11-14 00:01:15,804 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 00:01:15,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 00:01:15,813 INFO L432 NwaCegarLoop]: 130 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, 130 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:15,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 00:01:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 00:01:15,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-14 00:01:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2024-11-14 00:01:15,870 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 148 [2024-11-14 00:01:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:15,870 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2024-11-14 00:01:15,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 00:01:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2024-11-14 00:01:15,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 00:01:15,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:15,875 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:15,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 00:01:16,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:16,080 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:16,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash -713361263, now seen corresponding path program 1 times [2024-11-14 00:01:16,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:16,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004734506] [2024-11-14 00:01:16,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:16,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:16,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:16,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:16,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 00:01:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:16,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 00:01:16,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:01:16,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:01:16,656 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:16,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004734506] [2024-11-14 00:01:16,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004734506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:16,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:16,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 00:01:16,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394992723] [2024-11-14 00:01:16,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:16,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 00:01:16,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:01:16,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 00:01:16,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 00:01:16,663 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:16,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:16,756 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2024-11-14 00:01:16,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 00:01:16,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-11-14 00:01:16,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:16,763 INFO L225 Difference]: With dead ends: 183 [2024-11-14 00:01:16,764 INFO L226 Difference]: Without dead ends: 94 [2024-11-14 00:01:16,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 00:01:16,766 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:16,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 373 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 00:01:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-14 00:01:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-14 00:01:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2024-11-14 00:01:16,785 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 148 [2024-11-14 00:01:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:16,787 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2024-11-14 00:01:16,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:16,788 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2024-11-14 00:01:16,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-14 00:01:16,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:16,791 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:16,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 00:01:16,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:16,994 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:16,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:16,994 INFO L85 PathProgramCache]: Analyzing trace with hash -79135972, now seen corresponding path program 1 times [2024-11-14 00:01:16,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:16,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830873027] [2024-11-14 00:01:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:16,996 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:16,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:16,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:17,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 00:01:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:17,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 00:01:17,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:01:17,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:01:17,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:17,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830873027] [2024-11-14 00:01:17,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830873027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:17,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:17,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 00:01:17,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835341212] [2024-11-14 00:01:17,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:17,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 00:01:17,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:01:17,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 00:01:17,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 00:01:17,464 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:17,566 INFO L93 Difference]: Finished difference Result 188 states and 265 transitions. [2024-11-14 00:01:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 00:01:17,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-14 00:01:17,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:17,569 INFO L225 Difference]: With dead ends: 188 [2024-11-14 00:01:17,572 INFO L226 Difference]: Without dead ends: 97 [2024-11-14 00:01:17,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 00:01:17,574 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:17,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 00:01:17,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-14 00:01:17,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-14 00:01:17,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 75 states have internal predecessors, (95), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:17,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 135 transitions. [2024-11-14 00:01:17,604 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 135 transitions. Word has length 150 [2024-11-14 00:01:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:17,606 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 135 transitions. [2024-11-14 00:01:17,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 135 transitions. [2024-11-14 00:01:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-14 00:01:17,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:17,613 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:17,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 00:01:17,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:17,814 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:17,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash -623162518, now seen corresponding path program 1 times [2024-11-14 00:01:17,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:17,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264539581] [2024-11-14 00:01:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:17,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:17,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:17,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 00:01:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:18,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 00:01:18,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:18,292 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:01:18,293 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:01:18,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:18,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264539581] [2024-11-14 00:01:18,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264539581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:18,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:18,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 00:01:18,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101235052] [2024-11-14 00:01:18,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:18,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 00:01:18,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:01:18,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 00:01:18,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 00:01:18,298 INFO L87 Difference]: Start difference. First operand 97 states and 135 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:18,419 INFO L93 Difference]: Finished difference Result 196 states and 274 transitions. [2024-11-14 00:01:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 00:01:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-14 00:01:18,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:18,422 INFO L225 Difference]: With dead ends: 196 [2024-11-14 00:01:18,422 INFO L226 Difference]: Without dead ends: 102 [2024-11-14 00:01:18,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 00:01:18,424 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:18,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 486 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 00:01:18,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-14 00:01:18,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-14 00:01:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.2531645569620253) internal successors, (99), 79 states have internal predecessors, (99), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 139 transitions. [2024-11-14 00:01:18,438 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 139 transitions. Word has length 150 [2024-11-14 00:01:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:18,439 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 139 transitions. [2024-11-14 00:01:18,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 139 transitions. [2024-11-14 00:01:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-14 00:01:18,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:18,443 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:18,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 00:01:18,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:18,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:18,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:18,649 INFO L85 PathProgramCache]: Analyzing trace with hash 56895852, now seen corresponding path program 1 times [2024-11-14 00:01:18,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:18,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728537023] [2024-11-14 00:01:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:18,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:18,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:18,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:18,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 00:01:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:19,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 00:01:19,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:01:19,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:01:19,136 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:19,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728537023] [2024-11-14 00:01:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728537023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:19,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:19,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 00:01:19,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062008222] [2024-11-14 00:01:19,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:19,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 00:01:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:01:19,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 00:01:19,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 00:01:19,139 INFO L87 Difference]: Start difference. First operand 101 states and 139 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:19,277 INFO L93 Difference]: Finished difference Result 202 states and 279 transitions. [2024-11-14 00:01:19,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 00:01:19,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-14 00:01:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:19,280 INFO L225 Difference]: With dead ends: 202 [2024-11-14 00:01:19,280 INFO L226 Difference]: Without dead ends: 104 [2024-11-14 00:01:19,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 00:01:19,282 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 1 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:19,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 598 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 00:01:19,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-14 00:01:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-14 00:01:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 81 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 141 transitions. [2024-11-14 00:01:19,296 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 141 transitions. Word has length 150 [2024-11-14 00:01:19,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:19,297 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 141 transitions. [2024-11-14 00:01:19,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:19,297 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2024-11-14 00:01:19,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-14 00:01:19,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:19,301 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:19,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 00:01:19,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:19,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:19,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1831903214, now seen corresponding path program 1 times [2024-11-14 00:01:19,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:19,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241409608] [2024-11-14 00:01:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:19,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:19,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:19,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:19,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 00:01:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:19,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 00:01:19,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:01:19,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:01:19,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:19,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241409608] [2024-11-14 00:01:19,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241409608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:19,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:19,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 00:01:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075364661] [2024-11-14 00:01:19,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:19,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 00:01:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:01:19,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 00:01:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 00:01:19,963 INFO L87 Difference]: Start difference. First operand 103 states and 141 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:20,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:20,117 INFO L93 Difference]: Finished difference Result 206 states and 283 transitions. [2024-11-14 00:01:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 00:01:20,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-14 00:01:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:20,120 INFO L225 Difference]: With dead ends: 206 [2024-11-14 00:01:20,121 INFO L226 Difference]: Without dead ends: 106 [2024-11-14 00:01:20,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 00:01:20,122 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:20,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 711 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 00:01:20,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-14 00:01:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-14 00:01:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 83 states have internal predecessors, (103), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:20,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 143 transitions. [2024-11-14 00:01:20,135 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 143 transitions. Word has length 150 [2024-11-14 00:01:20,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:20,136 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 143 transitions. [2024-11-14 00:01:20,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 143 transitions. [2024-11-14 00:01:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-14 00:01:20,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:20,140 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:20,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-14 00:01:20,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:20,340 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:20,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1833750256, now seen corresponding path program 1 times [2024-11-14 00:01:20,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:20,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511903808] [2024-11-14 00:01:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:20,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:20,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:20,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:20,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-14 00:01:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:20,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 00:01:20,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:20,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:01:20,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 39 treesize of output 33 [2024-11-14 00:01:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:01:21,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:01:21,054 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:21,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511903808] [2024-11-14 00:01:21,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511903808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:01:21,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:01:21,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 00:01:21,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478414859] [2024-11-14 00:01:21,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:01:21,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 00:01:21,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:01:21,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 00:01:21,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 00:01:21,057 INFO L87 Difference]: Start difference. First operand 105 states and 143 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:21,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:01:21,096 INFO L93 Difference]: Finished difference Result 207 states and 283 transitions. [2024-11-14 00:01:21,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 00:01:21,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-14 00:01:21,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:01:21,099 INFO L225 Difference]: With dead ends: 207 [2024-11-14 00:01:21,099 INFO L226 Difference]: Without dead ends: 105 [2024-11-14 00:01:21,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 00:01:21,101 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 00:01:21,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 00:01:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-14 00:01:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-14 00:01:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2289156626506024) internal successors, (102), 83 states have internal predecessors, (102), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:01:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 142 transitions. [2024-11-14 00:01:21,112 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 142 transitions. Word has length 150 [2024-11-14 00:01:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:01:21,113 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 142 transitions. [2024-11-14 00:01:21,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:01:21,114 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 142 transitions. [2024-11-14 00:01:21,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 00:01:21,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:01:21,116 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:01:21,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-14 00:01:21,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:21,321 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:01:21,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:01:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1606403337, now seen corresponding path program 1 times [2024-11-14 00:01:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:01:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326948464] [2024-11-14 00:01:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:21,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:01:21,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:01:21,333 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:01:21,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-14 00:01:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:21,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 00:01:21,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:22,212 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 19 treesize of output 14 [2024-11-14 00:01:22,705 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 19 treesize of output 14 [2024-11-14 00:01:23,180 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 19 treesize of output 14 [2024-11-14 00:01:23,626 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 19 treesize of output 14 [2024-11-14 00:01:24,064 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 26 treesize of output 14 [2024-11-14 00:01:24,502 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 [2024-11-14 00:01:25,125 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 [2024-11-14 00:01:25,753 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 19 treesize of output 14 [2024-11-14 00:01:26,132 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 19 treesize of output 14 [2024-11-14 00:01:26,768 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 45 treesize of output 32 [2024-11-14 00:01:26,867 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 61 treesize of output 52 [2024-11-14 00:01:26,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 45 treesize of output 42 [2024-11-14 00:01:27,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:01:27,139 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 81 treesize of output 39 [2024-11-14 00:01:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-11-14 00:01:27,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:01:30,194 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:01:30,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326948464] [2024-11-14 00:01:30,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326948464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:01:30,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1423269641] [2024-11-14 00:01:30,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:30,195 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 00:01:30,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 00:01:30,200 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 00:01:30,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 00:01:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:30,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 00:01:31,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:31,365 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 [2024-11-14 00:01:32,080 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 [2024-11-14 00:01:32,591 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 [2024-11-14 00:01:33,065 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 [2024-11-14 00:01:33,528 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 21 treesize of output 20 [2024-11-14 00:01:34,292 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 31 [2024-11-14 00:01:35,324 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 40 treesize of output 34 [2024-11-14 00:01:36,095 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 33 treesize of output 24 [2024-11-14 00:01:36,650 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 33 treesize of output 24 [2024-11-14 00:01:37,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2024-11-14 00:01:37,910 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 68 treesize of output 53 [2024-11-14 00:01:37,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2024-11-14 00:01:38,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 39 [2024-11-14 00:01:38,326 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 384 proven. 144 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 00:01:38,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:01:50,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1423269641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:01:50,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965719101] [2024-11-14 00:01:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:01:50,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 00:01:50,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 00:01:51,000 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 00:01:51,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 00:01:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:01:51,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 00:01:51,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:01:53,719 INFO L349 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2024-11-14 00:01:53,719 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 1 case distinctions, treesize of input 34 treesize of output 38 [2024-11-14 00:01:54,100 INFO L349 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2024-11-14 00:01:54,100 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 2 case distinctions, treesize of input 52 treesize of output 58 [2024-11-14 00:01:54,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 30 [2024-11-14 00:01:56,796 INFO L349 Elim1Store]: treesize reduction 58, result has 25.6 percent of original size [2024-11-14 00:01:56,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 48 treesize of output 42 [2024-11-14 00:01:56,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 [2024-11-14 00:01:56,931 INFO L349 Elim1Store]: treesize reduction 77, result has 1.3 percent of original size [2024-11-14 00:01:56,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 48 treesize of output 22 [2024-11-14 00:01:57,263 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:01:57,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 63 treesize of output 41 [2024-11-14 00:01:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-14 00:01:57,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:01:57,400 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_283 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_286 (_ BitVec 32)) (v_ArrVal_285 (_ BitVec 32))) (let ((.cse1 (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_283))) (let ((.cse2 (select .cse1 |c_~#signed_short_int_Array_0~0.base|))) (= ((_ sign_extend 16) ((_ extract 15 0) (let ((.cse0 ((_ zero_extend 24) ((_ extract 7 0) (select (select (store .cse1 |c_~#signed_short_int_Array_0~0.base| (store (store .cse2 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv8 32)) v_ArrVal_285) |c_~#signed_short_int_Array_0~0.offset| v_ArrVal_286)) |c_~#unsigned_char_Array_0~0.base|) (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv2 32))))))) (bvadd .cse0 (bvneg .cse0))))) ((_ sign_extend 16) ((_ extract 15 0) (select .cse2 (bvadd |c_~#signed_short_int_Array_0~0.offset| (_ bv10 32))))))))) is different from false [2024-11-14 00:01:59,463 INFO L349 Elim1Store]: treesize reduction 28, result has 60.0 percent of original size [2024-11-14 00:01:59,463 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 1270 treesize of output 543 [2024-11-14 00:01:59,522 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:01:59,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 731 treesize of output 691 [2024-11-14 00:01:59,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:01:59,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 692 treesize of output 582 [2024-11-14 00:02:00,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4 [2024-11-14 00:02:00,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:02:00,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 153 treesize of output 151 [2024-11-14 00:02:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:04,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965719101] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 00:02:04,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 00:02:04,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 13, 11] total 36 [2024-11-14 00:02:04,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369112846] [2024-11-14 00:02:04,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:04,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 00:02:04,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:04,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 00:02:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1179, Unknown=18, NotChecked=72, Total=1482 [2024-11-14 00:02:04,956 INFO L87 Difference]: Start difference. First operand 105 states and 142 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:06,885 INFO L93 Difference]: Finished difference Result 207 states and 281 transitions. [2024-11-14 00:02:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 00:02:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-11-14 00:02:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:06,888 INFO L225 Difference]: With dead ends: 207 [2024-11-14 00:02:06,888 INFO L226 Difference]: Without dead ends: 105 [2024-11-14 00:02:06,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 622 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=261, Invalid=1530, Unknown=19, NotChecked=82, Total=1892 [2024-11-14 00:02:06,890 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 118 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 129 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:06,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 492 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 364 Invalid, 0 Unknown, 129 Unchecked, 1.2s Time] [2024-11-14 00:02:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-14 00:02:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2024-11-14 00:02:06,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 79 states have internal predecessors, (97), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 137 transitions. [2024-11-14 00:02:06,901 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 137 transitions. Word has length 152 [2024-11-14 00:02:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:06,901 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 137 transitions. [2024-11-14 00:02:06,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:06,902 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 137 transitions. [2024-11-14 00:02:06,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-14 00:02:06,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:06,904 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:06,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 00:02:07,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-14 00:02:07,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-14 00:02:07,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 00:02:07,506 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:07,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:07,506 INFO L85 PathProgramCache]: Analyzing trace with hash -726520361, now seen corresponding path program 1 times [2024-11-14 00:02:07,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:07,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748595050] [2024-11-14 00:02:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:07,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:07,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:07,509 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:07,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-14 00:02:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:07,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 00:02:07,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:07,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:02:07,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 37 treesize of output 31 [2024-11-14 00:02:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:07,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:02:07,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:02:07,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748595050] [2024-11-14 00:02:07,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748595050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:02:07,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:02:07,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 00:02:07,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182831578] [2024-11-14 00:02:07,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:07,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 00:02:07,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:07,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 00:02:07,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 00:02:07,858 INFO L87 Difference]: Start difference. First operand 101 states and 137 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:07,884 INFO L93 Difference]: Finished difference Result 199 states and 271 transitions. [2024-11-14 00:02:07,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 00:02:07,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-11-14 00:02:07,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:07,888 INFO L225 Difference]: With dead ends: 199 [2024-11-14 00:02:07,888 INFO L226 Difference]: Without dead ends: 101 [2024-11-14 00:02:07,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 00:02:07,890 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:07,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 00:02:07,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-14 00:02:07,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-14 00:02:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 79 states have internal predecessors, (96), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:07,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 136 transitions. [2024-11-14 00:02:07,910 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 136 transitions. Word has length 154 [2024-11-14 00:02:07,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:07,910 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 136 transitions. [2024-11-14 00:02:07,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 136 transitions. [2024-11-14 00:02:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 00:02:07,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:07,916 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:07,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-14 00:02:08,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:08,117 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:08,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash -377293200, now seen corresponding path program 1 times [2024-11-14 00:02:08,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:08,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014381010] [2024-11-14 00:02:08,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:08,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:08,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:08,120 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:08,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-14 00:02:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:08,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 00:02:08,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:08,624 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 [2024-11-14 00:02:09,043 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 [2024-11-14 00:02:09,386 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 [2024-11-14 00:02:09,782 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 [2024-11-14 00:02:10,130 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 [2024-11-14 00:02:10,471 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 [2024-11-14 00:02:10,997 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 [2024-11-14 00:02:11,436 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 [2024-11-14 00:02:11,694 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 [2024-11-14 00:02:12,158 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 [2024-11-14 00:02:12,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2024-11-14 00:02:12,294 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 58 proven. 437 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-14 00:02:12,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:02:12,354 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_350 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_349 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_349) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_350) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) is different from false [2024-11-14 00:02:12,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:02:12,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014381010] [2024-11-14 00:02:12,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014381010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:02:12,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [946958639] [2024-11-14 00:02:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 00:02:12,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 00:02:12,562 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 00:02:12,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 00:02:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:13,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 00:02:13,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:13,228 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 [2024-11-14 00:02:13,686 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 [2024-11-14 00:02:14,009 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 [2024-11-14 00:02:14,311 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 [2024-11-14 00:02:14,645 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 [2024-11-14 00:02:15,013 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 [2024-11-14 00:02:15,464 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 [2024-11-14 00:02:15,904 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 [2024-11-14 00:02:16,125 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 [2024-11-14 00:02:16,633 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 [2024-11-14 00:02:16,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2024-11-14 00:02:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 404 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2024-11-14 00:02:16,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:02:17,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [946958639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:02:17,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046611860] [2024-11-14 00:02:17,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:17,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 00:02:17,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 00:02:17,198 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 00:02:17,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 00:02:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:17,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 00:02:17,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:19,122 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 [2024-11-14 00:02:19,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2024-11-14 00:02:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:19,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:02:19,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046611860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:02:19,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 00:02:19,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 9] total 20 [2024-11-14 00:02:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866417104] [2024-11-14 00:02:19,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:19,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 00:02:19,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:19,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 00:02:19,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=541, Unknown=24, NotChecked=50, Total=756 [2024-11-14 00:02:19,181 INFO L87 Difference]: Start difference. First operand 101 states and 136 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:20,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:20,480 INFO L93 Difference]: Finished difference Result 240 states and 320 transitions. [2024-11-14 00:02:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 00:02:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-14 00:02:20,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:20,483 INFO L225 Difference]: With dead ends: 240 [2024-11-14 00:02:20,483 INFO L226 Difference]: Without dead ends: 142 [2024-11-14 00:02:20,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=154, Invalid=582, Unknown=24, NotChecked=52, Total=812 [2024-11-14 00:02:20,484 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 134 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:20,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 264 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 00:02:20,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-14 00:02:20,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 115. [2024-11-14 00:02:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 93 states have (on average 1.2150537634408602) internal successors, (113), 93 states have internal predecessors, (113), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:20,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2024-11-14 00:02:20,498 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 156 [2024-11-14 00:02:20,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:20,499 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2024-11-14 00:02:20,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2024-11-14 00:02:20,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 00:02:20,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:20,502 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:20,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 00:02:20,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-14 00:02:20,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-14 00:02:21,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:21,103 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:21,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:21,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1769378798, now seen corresponding path program 1 times [2024-11-14 00:02:21,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:21,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109007927] [2024-11-14 00:02:21,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:21,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:21,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:21,107 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:21,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-14 00:02:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:21,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 00:02:21,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:23,660 INFO L349 Elim1Store]: treesize reduction 183, result has 20.1 percent of original size [2024-11-14 00:02:23,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 150 treesize of output 262 [2024-11-14 00:02:23,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 80 [2024-11-14 00:02:23,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 37 treesize of output 33 [2024-11-14 00:02:25,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 18 [2024-11-14 00:02:25,245 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 0 case distinctions, treesize of input 88 treesize of output 63 [2024-11-14 00:02:25,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 00:02:25,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 00:02:25,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 85 treesize of output 61 [2024-11-14 00:02:25,328 INFO L349 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2024-11-14 00:02:25,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 1 [2024-11-14 00:02:25,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2024-11-14 00:02:25,594 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 54 treesize of output 30 [2024-11-14 00:02:25,640 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:25,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:02:25,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:02:25,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109007927] [2024-11-14 00:02:25,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109007927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:02:25,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:02:25,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 00:02:25,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425743854] [2024-11-14 00:02:25,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:25,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 00:02:25,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:25,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 00:02:25,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 00:02:25,643 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:26,557 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2024-11-14 00:02:26,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 00:02:26,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-14 00:02:26,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:26,559 INFO L225 Difference]: With dead ends: 122 [2024-11-14 00:02:26,560 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 00:02:26,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-14 00:02:26,561 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 37 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:26,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 317 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 00:02:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 00:02:26,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2024-11-14 00:02:26,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 96 states have internal predecessors, (116), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 156 transitions. [2024-11-14 00:02:26,574 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 156 transitions. Word has length 156 [2024-11-14 00:02:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:26,575 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 156 transitions. [2024-11-14 00:02:26,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 156 transitions. [2024-11-14 00:02:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 00:02:26,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:26,577 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:26,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-14 00:02:26,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:26,778 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:26,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:26,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1771225840, now seen corresponding path program 1 times [2024-11-14 00:02:26,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:26,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837059687] [2024-11-14 00:02:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:26,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:26,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:26,781 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:26,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-14 00:02:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:27,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 00:02:27,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:28,921 INFO L349 Elim1Store]: treesize reduction 183, result has 20.1 percent of original size [2024-11-14 00:02:28,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 150 treesize of output 262 [2024-11-14 00:02:29,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 80 [2024-11-14 00:02:29,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 41 treesize of output 33 [2024-11-14 00:02:29,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 47 treesize of output 18 [2024-11-14 00:02:30,287 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 00:02:30,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-14 00:02:30,384 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2024-11-14 00:02:30,385 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 3 case distinctions, treesize of input 302 treesize of output 283 [2024-11-14 00:02:30,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 133 [2024-11-14 00:02:30,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 17 [2024-11-14 00:02:30,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 20 [2024-11-14 00:02:30,631 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 0 case distinctions, treesize of input 87 treesize of output 60 [2024-11-14 00:02:30,916 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 66 treesize of output 30 [2024-11-14 00:02:30,942 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:30,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:02:30,942 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:02:30,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837059687] [2024-11-14 00:02:30,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837059687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:02:30,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:02:30,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 00:02:30,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236577164] [2024-11-14 00:02:30,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:30,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 00:02:30,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:30,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 00:02:30,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 00:02:30,944 INFO L87 Difference]: Start difference. First operand 118 states and 156 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:31,796 INFO L93 Difference]: Finished difference Result 235 states and 311 transitions. [2024-11-14 00:02:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 00:02:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-14 00:02:31,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:31,799 INFO L225 Difference]: With dead ends: 235 [2024-11-14 00:02:31,799 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 00:02:31,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 00:02:31,801 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 63 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:31,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 242 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 00:02:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 00:02:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2024-11-14 00:02:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 96 states have (on average 1.1979166666666667) internal successors, (115), 96 states have internal predecessors, (115), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 155 transitions. [2024-11-14 00:02:31,816 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 155 transitions. Word has length 156 [2024-11-14 00:02:31,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:31,816 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 155 transitions. [2024-11-14 00:02:31,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:31,817 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 155 transitions. [2024-11-14 00:02:31,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 00:02:31,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:31,820 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:31,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-14 00:02:32,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:32,021 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:32,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:32,022 INFO L85 PathProgramCache]: Analyzing trace with hash -748734094, now seen corresponding path program 1 times [2024-11-14 00:02:32,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:32,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209910712] [2024-11-14 00:02:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:32,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:32,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:32,025 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:32,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-14 00:02:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:32,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 00:02:32,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:33,341 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2024-11-14 00:02:33,346 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 [2024-11-14 00:02:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:33,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:02:33,484 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:02:33,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209910712] [2024-11-14 00:02:33,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209910712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:02:33,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:02:33,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 00:02:33,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29729747] [2024-11-14 00:02:33,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:33,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 00:02:33,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 00:02:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 00:02:33,486 INFO L87 Difference]: Start difference. First operand 118 states and 155 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:34,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:34,144 INFO L93 Difference]: Finished difference Result 235 states and 309 transitions. [2024-11-14 00:02:34,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 00:02:34,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-14 00:02:34,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:34,147 INFO L225 Difference]: With dead ends: 235 [2024-11-14 00:02:34,147 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 00:02:34,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-14 00:02:34,149 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 81 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:34,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 295 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 00:02:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 00:02:34,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2024-11-14 00:02:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 96 states have (on average 1.1875) internal successors, (114), 96 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2024-11-14 00:02:34,169 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 154 transitions. Word has length 156 [2024-11-14 00:02:34,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:34,170 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 154 transitions. [2024-11-14 00:02:34,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:34,170 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 154 transitions. [2024-11-14 00:02:34,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 00:02:34,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:34,175 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:34,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-14 00:02:34,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:34,376 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:34,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:34,377 INFO L85 PathProgramCache]: Analyzing trace with hash -68675724, now seen corresponding path program 1 times [2024-11-14 00:02:34,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:34,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546439920] [2024-11-14 00:02:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:34,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:34,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:34,380 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:34,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-14 00:02:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:34,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 00:02:34,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:34,835 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:02:34,835 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:02:34,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546439920] [2024-11-14 00:02:34,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546439920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:02:34,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:02:34,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 00:02:34,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734728158] [2024-11-14 00:02:34,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:34,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 00:02:34,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:34,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 00:02:34,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 00:02:34,837 INFO L87 Difference]: Start difference. First operand 118 states and 154 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:34,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:34,914 INFO L93 Difference]: Finished difference Result 236 states and 309 transitions. [2024-11-14 00:02:34,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 00:02:34,914 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-11-14 00:02:34,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:34,916 INFO L225 Difference]: With dead ends: 236 [2024-11-14 00:02:34,916 INFO L226 Difference]: Without dead ends: 121 [2024-11-14 00:02:34,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 00:02:34,918 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:34,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 480 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 00:02:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-14 00:02:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-14 00:02:34,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 99 states have (on average 1.1818181818181819) internal successors, (117), 99 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 157 transitions. [2024-11-14 00:02:34,931 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 157 transitions. Word has length 156 [2024-11-14 00:02:34,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:34,932 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 157 transitions. [2024-11-14 00:02:34,932 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 157 transitions. [2024-11-14 00:02:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-14 00:02:34,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:34,934 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:34,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-14 00:02:35,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:35,138 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:35,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:35,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1197313188, now seen corresponding path program 1 times [2024-11-14 00:02:35,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:35,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268519652] [2024-11-14 00:02:35,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:35,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:35,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:35,141 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:35,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-14 00:02:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:35,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 00:02:35,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:36,800 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 [2024-11-14 00:02:36,942 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 24 treesize of output 17 [2024-11-14 00:02:36,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-14 00:02:37,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:02:37,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 60 treesize of output 30 [2024-11-14 00:02:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 00:02:37,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 00:02:37,190 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:02:37,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268519652] [2024-11-14 00:02:37,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268519652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:02:37,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 00:02:37,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 00:02:37,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240159272] [2024-11-14 00:02:37,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:02:37,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 00:02:37,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 00:02:37,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 00:02:37,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-14 00:02:37,193 INFO L87 Difference]: Start difference. First operand 121 states and 157 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:39,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:02:39,198 INFO L93 Difference]: Finished difference Result 297 states and 380 transitions. [2024-11-14 00:02:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 00:02:39,199 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), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-14 00:02:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:02:39,201 INFO L225 Difference]: With dead ends: 297 [2024-11-14 00:02:39,201 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 00:02:39,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-14 00:02:39,202 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 106 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 00:02:39,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 532 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 00:02:39,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 00:02:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 135. [2024-11-14 00:02:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.1946902654867257) internal successors, (135), 113 states have internal predecessors, (135), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 00:02:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 175 transitions. [2024-11-14 00:02:39,214 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 175 transitions. Word has length 157 [2024-11-14 00:02:39,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:02:39,215 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 175 transitions. [2024-11-14 00:02:39,215 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), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 00:02:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 175 transitions. [2024-11-14 00:02:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 00:02:39,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:02:39,216 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:02:39,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2024-11-14 00:02:39,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:39,417 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:02:39,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:02:39,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1304246375, now seen corresponding path program 1 times [2024-11-14 00:02:39,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 00:02:39,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962388779] [2024-11-14 00:02:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:02:39,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 00:02:39,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 00:02:39,423 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 00:02:39,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-14 00:02:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:02:40,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 00:02:40,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:02:41,770 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 21 treesize of output 16 [2024-11-14 00:02:42,043 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 21 treesize of output 16 [2024-11-14 00:02:44,199 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 61 treesize of output 48 [2024-11-14 00:02:44,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 48 [2024-11-14 00:02:46,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 00:02:46,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 41 [2024-11-14 00:02:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 167 proven. 150 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2024-11-14 00:02:50,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:02:57,616 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_594 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_593) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_594) |c_~#unsigned_char_Array_0~0.base|))) (bvsle ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 |c_~#unsigned_char_Array_0~0.offset|))) (bvmul (bvsrem (_ bv2 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32)))))) (bvsdiv ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))))))))))) is different from false [2024-11-14 00:02:58,719 WARN L851 $PredicateComparison]: unable to prove that (or (bvsle ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem14#1|) (bvmul (bvsdiv ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem11#1|) ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem12#1|)) (bvsrem (_ bv2 32) ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem13#1|)))) (forall ((v_ArrVal_593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_594 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_593) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_594) |c_~#unsigned_char_Array_0~0.base|))) (bvsle ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 |c_~#unsigned_char_Array_0~0.offset|))) (bvmul (bvsrem (_ bv2 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32)))))) (bvsdiv ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))))))))) is different from false [2024-11-14 00:03:05,480 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 00:03:05,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962388779] [2024-11-14 00:03:05,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962388779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:03:05,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1923163071] [2024-11-14 00:03:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:03:05,480 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 00:03:05,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 00:03:05,482 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 00:03:05,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 00:03:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:03:06,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 00:03:06,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:03:16,543 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 [2024-11-14 00:03:23,399 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 27 treesize of output 20 [2024-11-14 00:03:25,922 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 [2024-11-14 00:03:40,067 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 61 treesize of output 46 [2024-11-14 00:03:40,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2024-11-14 00:03:58,212 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 284 proven. 150 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-14 00:03:58,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:04:00,255 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_626 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_625 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_626) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_625) |c_~#unsigned_char_Array_0~0.base|))) (bvsle ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 |c_~#unsigned_char_Array_0~0.offset|))) (bvmul (bvsdiv ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))) (bvsrem (_ bv2 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32))))))))))) is different from false [2024-11-14 00:04:01,755 WARN L851 $PredicateComparison]: unable to prove that (or (bvsle ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem14#1|) (bvmul (bvsdiv ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem11#1|) ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem12#1|)) (bvsrem (_ bv2 32) ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem13#1|)))) (forall ((v_ArrVal_626 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_625 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_626) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_625) |c_~#unsigned_char_Array_0~0.base|))) (bvsle ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 |c_~#unsigned_char_Array_0~0.offset|))) (bvmul (bvsdiv ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32)))))) (bvsrem (_ bv2 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32)))))))))))) is different from false [2024-11-14 00:04:02,508 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv2 32))) (.cse3 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv1 32))) (.cse1 (bvadd |c_~#unsigned_char_Array_0~0.offset| (_ bv3 32)))) (or (let ((.cse0 (select |c_#memory_int| |c_~#unsigned_char_Array_0~0.base|))) (bvsle ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 |c_~#unsigned_char_Array_0~0.offset|))) (bvmul (bvsrem (_ bv2 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse1)))) (bvsdiv ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse2))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 .cse3))))))) (forall ((v_ArrVal_626 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_625 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse4 (select (store (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_626) |c_~#signed_short_int_Array_0~0.base| v_ArrVal_625) |c_~#unsigned_char_Array_0~0.base|))) (bvsle ((_ zero_extend 24) ((_ extract 7 0) (select .cse4 |c_~#unsigned_char_Array_0~0.offset|))) (bvmul (bvsdiv ((_ zero_extend 24) ((_ extract 7 0) (select .cse4 .cse2))) ((_ zero_extend 24) ((_ extract 7 0) (select .cse4 .cse3)))) (bvsrem (_ bv2 32) ((_ zero_extend 24) ((_ extract 7 0) (select .cse4 .cse1))))))))))) is different from false [2024-11-14 00:04:03,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1923163071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:04:03,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236614534] [2024-11-14 00:04:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:04:03,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 00:04:03,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 00:04:03,937 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 00:04:03,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d87d84c7-db30-4b4a-a1c6-604c270031b9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 00:04:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:04:07,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 00:04:07,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:04:24,930 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 49 treesize of output 38 [2024-11-14 00:04:25,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38