./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.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_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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_156bceea-3069-4a35-a196-bfd92d8bb52c/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 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:43:52,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:43:52,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:43:52,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:43:52,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:43:52,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:43:52,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:43:52,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:43:52,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:43:52,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:43:52,251 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:43:52,251 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:43:52,251 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:43:52,252 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:43:52,252 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:43:52,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:43:52,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:43:52,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:43:52,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:43:52,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:43:52,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:43:52,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:43:52,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:43:52,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:43:52,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:43:52,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:43:52,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:43:52,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:43:52,257 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:43:52,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:43:52,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:43:52,258 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:43:52,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:43:52,258 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_156bceea-3069-4a35-a196-bfd92d8bb52c/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 -> 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af [2024-11-14 02:43:52,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:43:52,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:43:52,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:43:52,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:43:52,588 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:43:52,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i Unable to find full path for "g++" [2024-11-14 02:43:54,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:43:54,965 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:43:54,966 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-14 02:43:54,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data/77c20dd48/d1c6ca316e5a4c178dea0d1cf46701e0/FLAG05da0fef7 [2024-11-14 02:43:54,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data/77c20dd48/d1c6ca316e5a4c178dea0d1cf46701e0 [2024-11-14 02:43:55,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:43:55,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:43:55,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:43:55,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:43:55,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:43:55,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a33a93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55, skipping insertion in model container [2024-11-14 02:43:55,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:43:55,186 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_156bceea-3069-4a35-a196-bfd92d8bb52c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-14 02:43:55,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:43:55,254 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:43:55,263 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_156bceea-3069-4a35-a196-bfd92d8bb52c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-14 02:43:55,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:43:55,314 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:43:55,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55 WrapperNode [2024-11-14 02:43:55,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:43:55,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:43:55,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:43:55,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:43:55,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,383 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 459 [2024-11-14 02:43:55,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:43:55,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:43:55,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:43:55,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:43:55,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:43:55,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:43:55,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:43:55,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:43:55,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:43:55,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:55,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:43:55,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:43:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:43:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 02:43:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 02:43:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 02:43:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 02:43:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 02:43:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 02:43:55,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 02:43:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:43:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:43:55,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:43:55,675 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:43:55,677 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:43:56,264 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-11-14 02:43:56,265 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:43:56,892 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:43:56,892 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:43:56,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:43:56 BoogieIcfgContainer [2024-11-14 02:43:56,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:43:56,895 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:43:56,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:43:56,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:43:56,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:43:55" (1/3) ... [2024-11-14 02:43:56,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608497c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:43:56, skipping insertion in model container [2024-11-14 02:43:56,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55" (2/3) ... [2024-11-14 02:43:56,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608497c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:43:56, skipping insertion in model container [2024-11-14 02:43:56,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:43:56" (3/3) ... [2024-11-14 02:43:56,904 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-14 02:43:56,923 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:43:56,926 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-47.i that has 2 procedures, 27 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:43:57,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:43:57,023 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;@2af59dab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:43:57,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:43:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 02:43:57,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 02:43:57,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:57,035 INFO L215 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 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 02:43:57,035 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:43:57,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2085373661, now seen corresponding path program 1 times [2024-11-14 02:43:57,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:57,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905574698] [2024-11-14 02:43:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:57,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:43:58,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 02:43:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:43:59,078 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 02:43:59,080 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 02:43:59,082 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 02:43:59,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:43:59,092 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 02:43:59,209 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:43:59,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:43:59 BoogieIcfgContainer [2024-11-14 02:43:59,215 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:43:59,217 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:43:59,217 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:43:59,217 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:43:59,219 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:43:56" (3/4) ... [2024-11-14 02:43:59,222 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 02:43:59,223 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:43:59,225 INFO L158 Benchmark]: Toolchain (without parser) took 4222.41ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.7MB in the beginning and 205.1MB in the end (delta: -86.5MB). Peak memory consumption was 197.8MB. Max. memory is 16.1GB. [2024-11-14 02:43:59,226 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:43:59,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.77ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 104.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 02:43:59,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.99ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 101.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:43:59,227 INFO L158 Benchmark]: Boogie Preprocessor took 69.91ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 99.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:43:59,227 INFO L158 Benchmark]: RCFGBuilder took 1434.59ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 68.1MB in the end (delta: 31.5MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2024-11-14 02:43:59,228 INFO L158 Benchmark]: TraceAbstraction took 2319.65ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 67.3MB in the beginning and 205.1MB in the end (delta: -137.8MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2024-11-14 02:43:59,228 INFO L158 Benchmark]: Witness Printer took 7.09ms. Allocated memory is still 427.8MB. Free memory was 205.1MB in the beginning and 205.1MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:43:59,230 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.77ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 104.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.99ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 101.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.91ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 99.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1434.59ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 68.1MB in the end (delta: 31.5MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2319.65ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 67.3MB in the beginning and 205.1MB in the end (delta: -137.8MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. * Witness Printer took 7.09ms. Allocated memory is still 427.8MB. Free memory was 205.1MB in the beginning and 205.1MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 74. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L45] double* WrapperStruct0_var_1_1_Pointer = &(WrapperStruct0.var_1_1); [L46] double* WrapperStruct0_var_1_8_Pointer = &(WrapperStruct0.var_1_8); [L47] signed char* WrapperStruct0_var_1_9_Pointer = &(WrapperStruct0.var_1_9); [L48] signed char* WrapperStruct0_var_1_10_Pointer = &(WrapperStruct0.var_1_10); [L49] signed char* WrapperStruct0_var_1_11_Pointer = &(WrapperStruct0.var_1_11); [L50] signed long int* WrapperStruct0_var_1_12_Pointer = &(WrapperStruct0.var_1_12); [L51] unsigned char* WrapperStruct0_var_1_13_Pointer = &(WrapperStruct0.var_1_13); [L52] unsigned char* WrapperStruct0_var_1_14_Pointer = &(WrapperStruct0.var_1_14); [L53] double* WrapperStruct0_var_1_15_Pointer = &(WrapperStruct0.var_1_15); [L54] signed long int last_1_WrapperStruct0_var_1_12 = 8; [L108] isInitial = 1 [L109] FCALL initially() [L110] COND TRUE 1 [L111] CALL updateLastVariables() [L101] EXPR WrapperStruct0.var_1_12 [L101] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L85] WrapperStruct0.var_1_8 = __VERIFIER_nondet_double() [L86] EXPR WrapperStruct0.var_1_8 [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L86] EXPR WrapperStruct0.var_1_8 [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L86] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] CALL assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L87] WrapperStruct0.var_1_10 = __VERIFIER_nondet_char() [L88] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L88] CALL assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] CALL assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L90] WrapperStruct0.var_1_11 = __VERIFIER_nondet_char() [L91] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L91] CALL assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] CALL assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L93] WrapperStruct0.var_1_13 = __VERIFIER_nondet_uchar() [L94] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L94] CALL assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] CALL assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L96] WrapperStruct0.var_1_14 = __VERIFIER_nondet_uchar() [L97] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L97] CALL assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] CALL assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L112] RET updateVariables() [L113] CALL step() [L58] COND FALSE !(-4 > last_1_WrapperStruct0_var_1_12) [L63] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L63] (*(WrapperStruct0_var_1_9_Pointer)) = (*(WrapperStruct0_var_1_10_Pointer)) [L65] EXPR \read(*WrapperStruct0_var_1_13_Pointer) [L65] unsigned char stepLocal_0 = ! (*(WrapperStruct0_var_1_13_Pointer)); [L66] stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) [L66] COND TRUE stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) [L67] EXPR \read(*WrapperStruct0_var_1_14_Pointer) [L67] COND TRUE ! (*(WrapperStruct0_var_1_14_Pointer)) [L68] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L68] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L68] EXPR (((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))) [L68] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L68] EXPR (((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))) [L68] EXPR ((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) [L68] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L68] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L68] EXPR (((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))) [L68] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L68] EXPR (((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))) [L68] EXPR ((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) [L68] (*(WrapperStruct0_var_1_12_Pointer)) = ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))) [L73] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L73] (*(WrapperStruct0_var_1_15_Pointer)) = (*(WrapperStruct0_var_1_8_Pointer)) [L74] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L74] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L74] COND TRUE (*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer)) [L75] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L75] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L75] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L75] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L75] COND TRUE ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer))) [L76] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L76] EXPR (((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))) [L76] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L76] EXPR (((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))) [L76] (*(WrapperStruct0_var_1_1_Pointer)) = (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))) [L113] RET step() [L114] CALL, EXPR property() [L104] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L104] EXPR ((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1) [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_9_Pointer) [L104] EXPR (((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1 [L104] EXPR \read(*WrapperStruct0_var_1_1_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L104] EXPR (((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))) [L104] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L104] EXPR (((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))) [L104] EXPR (((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1 [L104] EXPR ((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1) [L104] EXPR (((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer))))) [L104] EXPR ((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1) [L104] EXPR (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) [L104-L105] return (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L19] reach_error() VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 9, 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=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 02:43:59,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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_156bceea-3069-4a35-a196-bfd92d8bb52c/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 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:44:02,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:44:02,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 02:44:02,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:44:02,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:44:02,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:44:02,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:44:02,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:44:02,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:44:02,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:44:02,261 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:44:02,261 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:44:02,262 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:44:02,262 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:44:02,264 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:44:02,264 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:44:02,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:44:02,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:44:02,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:44:02,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:44:02,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:44:02,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:44:02,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:44:02,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:44:02,268 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 02:44:02,268 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:44:02,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:44:02,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:44:02,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:44:02,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:44:02,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:44:02,270 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 02:44:02,270 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 02:44:02,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:44:02,271 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:44:02,271 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_156bceea-3069-4a35-a196-bfd92d8bb52c/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 -> 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af [2024-11-14 02:44:02,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:44:02,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:44:02,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:44:02,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:44:02,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:44:02,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i Unable to find full path for "g++" [2024-11-14 02:44:04,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:44:05,131 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:44:05,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-14 02:44:05,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data/38703e21c/1f36c54f646e4b669ca071dae3a53a49/FLAG50c3e8ba5 [2024-11-14 02:44:05,174 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/data/38703e21c/1f36c54f646e4b669ca071dae3a53a49 [2024-11-14 02:44:05,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:44:05,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:44:05,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:44:05,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:44:05,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:44:05,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39983071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05, skipping insertion in model container [2024-11-14 02:44:05,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:44:05,392 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_156bceea-3069-4a35-a196-bfd92d8bb52c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-14 02:44:05,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:44:05,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:44:05,552 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_156bceea-3069-4a35-a196-bfd92d8bb52c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-14 02:44:05,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:44:05,643 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:44:05,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05 WrapperNode [2024-11-14 02:44:05,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:44:05,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:44:05,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:44:05,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:44:05,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,708 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 457 [2024-11-14 02:44:05,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:44:05,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:44:05,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:44:05,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:44:05,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:44:05,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:44:05,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:44:05,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:44:05,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (1/1) ... [2024-11-14 02:44:05,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:44:05,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:05,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:44:05,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 02:44:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 02:44:05,828 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 02:44:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:44:05,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:44:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 02:44:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 02:44:05,987 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:44:05,989 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:44:06,794 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-14 02:44:06,794 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:44:06,811 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:44:06,812 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:44:06,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:44:06 BoogieIcfgContainer [2024-11-14 02:44:06,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:44:06,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:44:06,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:44:06,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:44:06,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:44:05" (1/3) ... [2024-11-14 02:44:06,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83a8679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:44:06, skipping insertion in model container [2024-11-14 02:44:06,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:05" (2/3) ... [2024-11-14 02:44:06,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83a8679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:44:06, skipping insertion in model container [2024-11-14 02:44:06,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:44:06" (3/3) ... [2024-11-14 02:44:06,826 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-14 02:44:06,842 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:44:06,845 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-47.i that has 2 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:44:06,920 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:44:06,938 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;@72a4bc67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:44:06,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:44:06,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 02:44:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 02:44:06,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:06,958 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:06,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:06,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:06,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1803858663, now seen corresponding path program 1 times [2024-11-14 02:44:06,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:44:06,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616394396] [2024-11-14 02:44:06,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:06,991 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 02:44:06,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:44:07,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:07,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:07,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 02:44:07,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 02:44:07,576 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:07,577 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:44:07,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616394396] [2024-11-14 02:44:07,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616394396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:07,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:07,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:44:07,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81326014] [2024-11-14 02:44:07,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:07,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:07,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:44:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:07,618 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:44:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:07,881 INFO L93 Difference]: Finished difference Result 186 states and 287 transitions. [2024-11-14 02:44:07,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:07,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-14 02:44:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:07,897 INFO L225 Difference]: With dead ends: 186 [2024-11-14 02:44:07,898 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 02:44:07,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 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 02:44:07,904 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:07,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:44:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 02:44:07,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 02:44:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 02:44:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-14 02:44:07,952 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-11-14 02:44:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:07,954 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-14 02:44:07,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:44:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-14 02:44:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 02:44:07,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:07,961 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:07,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:08,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:08,167 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:08,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:08,168 INFO L85 PathProgramCache]: Analyzing trace with hash 114914921, now seen corresponding path program 1 times [2024-11-14 02:44:08,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:44:08,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025734029] [2024-11-14 02:44:08,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:08,170 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 02:44:08,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:44:08,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:08,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:08,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:44:08,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 02:44:08,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:08,565 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:44:08,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025734029] [2024-11-14 02:44:08,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025734029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:08,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:08,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:44:08,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018969387] [2024-11-14 02:44:08,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:08,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:08,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:44:08,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:08,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:08,569 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:44:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:08,939 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-11-14 02:44:08,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:44:08,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-14 02:44:08,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:08,943 INFO L225 Difference]: With dead ends: 186 [2024-11-14 02:44:08,944 INFO L226 Difference]: Without dead ends: 96 [2024-11-14 02:44:08,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 02:44:08,947 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:08,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:44:08,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-14 02:44:08,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-14 02:44:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.411764705882353) internal successors, (120), 85 states have internal predecessors, (120), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 02:44:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-14 02:44:08,965 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 84 [2024-11-14 02:44:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:08,966 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-14 02:44:08,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:44:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-14 02:44:08,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 02:44:08,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:08,970 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:08,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:09,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:09,171 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:09,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:09,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1626320091, now seen corresponding path program 1 times [2024-11-14 02:44:09,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:44:09,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209565053] [2024-11-14 02:44:09,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:09,172 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 02:44:09,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:44:09,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:09,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:09,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:44:09,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 02:44:09,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:09,574 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:44:09,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209565053] [2024-11-14 02:44:09,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209565053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:09,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:09,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:44:09,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297183792] [2024-11-14 02:44:09,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:09,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:09,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:44:09,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:09,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:09,579 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:44:11,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:12,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 02:44:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:12,979 INFO L93 Difference]: Finished difference Result 194 states and 280 transitions. [2024-11-14 02:44:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:44:12,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-14 02:44:12,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:12,985 INFO L225 Difference]: With dead ends: 194 [2024-11-14 02:44:12,985 INFO L226 Difference]: Without dead ends: 101 [2024-11-14 02:44:12,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 02:44:12,987 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:12,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 02:44:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-14 02:44:13,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-11-14 02:44:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 02:44:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-11-14 02:44:13,011 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 84 [2024-11-14 02:44:13,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:13,011 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-11-14 02:44:13,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:44:13,012 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-11-14 02:44:13,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 02:44:13,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:13,016 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:13,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:13,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:13,217 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:13,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:13,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1628167133, now seen corresponding path program 1 times [2024-11-14 02:44:13,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:44:13,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778133278] [2024-11-14 02:44:13,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:13,218 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 02:44:13,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:44:13,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:13,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:13,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 02:44:13,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:13,935 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 02:44:15,276 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 104 treesize of output 55 [2024-11-14 02:44:16,145 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 101 treesize of output 63 [2024-11-14 02:44:17,371 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 112 treesize of output 66 [2024-11-14 02:44:18,313 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 109 treesize of output 74 [2024-11-14 02:44:19,546 INFO L349 Elim1Store]: treesize reduction 67, result has 18.3 percent of original size [2024-11-14 02:44:19,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 122 treesize of output 101 [2024-11-14 02:44:19,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:44:19,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 159 treesize of output 75 [2024-11-14 02:44:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 48 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-14 02:44:20,149 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:44:20,794 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:44:20,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778133278] [2024-11-14 02:44:20,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778133278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:20,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1758176486] [2024-11-14 02:44:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:20,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 02:44:20,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 02:44:20,800 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 02:44:20,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-14 02:44:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:23,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 02:44:23,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:23,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 17 [2024-11-14 02:44:25,281 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 117 treesize of output 71 [2024-11-14 02:44:26,469 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 125 treesize of output 82 [2024-11-14 02:44:27,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2024-11-14 02:44:28,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 64 [2024-11-14 02:44:30,038 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2024-11-14 02:44:30,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 91 [2024-11-14 02:44:30,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 51 [2024-11-14 02:44:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 02:44:32,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:44:32,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1758176486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:32,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268167563] [2024-11-14 02:44:32,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:32,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:32,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:32,962 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:32,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 02:44:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:33,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-14 02:44:33,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:33,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 17 [2024-11-14 02:44:35,806 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 120 treesize of output 63 [2024-11-14 02:44:37,071 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 120 treesize of output 63 [2024-11-14 02:44:38,125 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 117 treesize of output 71 [2024-11-14 02:44:39,245 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 107 treesize of output 88 [2024-11-14 02:44:40,773 INFO L349 Elim1Store]: treesize reduction 67, result has 18.3 percent of original size [2024-11-14 02:44:40,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 120 treesize of output 115 [2024-11-14 02:44:41,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 94 [2024-11-14 02:44:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 02:44:42,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:44:42,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268167563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:42,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:44:42,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 10] total 30 [2024-11-14 02:44:42,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278028781] [2024-11-14 02:44:42,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:44:42,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-14 02:44:42,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:44:42,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-14 02:44:42,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=982, Unknown=1, NotChecked=0, Total=1122 [2024-11-14 02:44:42,560 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 31 states, 31 states have (on average 3.870967741935484) internal successors, (120), 30 states have internal predecessors, (120), 11 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-14 02:44:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:58,311 INFO L93 Difference]: Finished difference Result 370 states and 516 transitions. [2024-11-14 02:44:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 02:44:58,313 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.870967741935484) internal successors, (120), 30 states have internal predecessors, (120), 11 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 84 [2024-11-14 02:44:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:58,315 INFO L225 Difference]: With dead ends: 370 [2024-11-14 02:44:58,316 INFO L226 Difference]: Without dead ends: 273 [2024-11-14 02:44:58,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 286 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=360, Invalid=1801, Unknown=1, NotChecked=0, Total=2162 [2024-11-14 02:44:58,319 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 2211 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:58,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 919 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-14 02:44:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-14 02:44:58,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 150. [2024-11-14 02:44:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 125 states have (on average 1.328) internal successors, (166), 125 states have internal predecessors, (166), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 02:44:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 202 transitions. [2024-11-14 02:44:58,356 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 202 transitions. Word has length 84 [2024-11-14 02:44:58,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:58,357 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 202 transitions. [2024-11-14 02:44:58,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.870967741935484) internal successors, (120), 30 states have internal predecessors, (120), 11 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-14 02:44:58,357 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 202 transitions. [2024-11-14 02:44:58,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 02:44:58,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:58,360 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:58,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 02:44:58,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:58,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-14 02:44:58,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 02:44:58,961 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:58,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:58,961 INFO L85 PathProgramCache]: Analyzing trace with hash 240868934, now seen corresponding path program 1 times [2024-11-14 02:44:58,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:44:58,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201774285] [2024-11-14 02:44:58,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:58,962 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 02:44:58,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:44:58,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:58,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:44:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:59,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 02:44:59,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:59,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:44:59,349 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 136 treesize of output 46 [2024-11-14 02:44:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 02:44:59,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:59,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:44:59,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201774285] [2024-11-14 02:44:59,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201774285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:59,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:44:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437641518] [2024-11-14 02:44:59,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:59,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:44:59,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:59,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:44:59,539 INFO L87 Difference]: Start difference. First operand 150 states and 202 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:45:03,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:03,733 INFO L93 Difference]: Finished difference Result 342 states and 462 transitions. [2024-11-14 02:45:03,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:45:03,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-14 02:45:03,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:03,737 INFO L225 Difference]: With dead ends: 342 [2024-11-14 02:45:03,737 INFO L226 Difference]: Without dead ends: 195 [2024-11-14 02:45:03,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:45:03,738 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 57 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:03,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-14 02:45:03,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-14 02:45:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 152. [2024-11-14 02:45:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.3228346456692914) internal successors, (168), 127 states have internal predecessors, (168), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 02:45:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 204 transitions. [2024-11-14 02:45:03,783 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 204 transitions. Word has length 84 [2024-11-14 02:45:03,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:03,785 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 204 transitions. [2024-11-14 02:45:03,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:45:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 204 transitions. [2024-11-14 02:45:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 02:45:03,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:03,787 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:03,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-14 02:45:03,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:45:03,987 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:03,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:03,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1868406879, now seen corresponding path program 1 times [2024-11-14 02:45:03,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:45:03,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982213586] [2024-11-14 02:45:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:03,989 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 02:45:03,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:45:03,992 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:45:03,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:45:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:04,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:45:04,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 02:45:04,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:45:04,243 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:45:04,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982213586] [2024-11-14 02:45:04,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982213586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:04,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:04,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:45:04,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022487535] [2024-11-14 02:45:04,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:04,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:45:04,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:45:04,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:45:04,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:45:04,244 INFO L87 Difference]: Start difference. First operand 152 states and 204 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:45:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:04,328 INFO L93 Difference]: Finished difference Result 301 states and 405 transitions. [2024-11-14 02:45:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:45:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-14 02:45:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:04,330 INFO L225 Difference]: With dead ends: 301 [2024-11-14 02:45:04,331 INFO L226 Difference]: Without dead ends: 152 [2024-11-14 02:45:04,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 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 02:45:04,332 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:04,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:45:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-14 02:45:04,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-14 02:45:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.31496062992126) internal successors, (167), 127 states have internal predecessors, (167), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 02:45:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 203 transitions. [2024-11-14 02:45:04,359 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 203 transitions. Word has length 84 [2024-11-14 02:45:04,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:04,359 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 203 transitions. [2024-11-14 02:45:04,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:45:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2024-11-14 02:45:04,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 02:45:04,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:04,361 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:04,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:45:04,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:45:04,562 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:04,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:04,562 INFO L85 PathProgramCache]: Analyzing trace with hash -399115583, now seen corresponding path program 1 times [2024-11-14 02:45:04,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:45:04,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997165645] [2024-11-14 02:45:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:04,563 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 02:45:04,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:45:04,566 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:45:04,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 02:45:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:04,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 02:45:04,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:05,319 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 02:45:06,820 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 104 treesize of output 55 [2024-11-14 02:45:08,022 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 104 treesize of output 55 [2024-11-14 02:45:09,212 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 101 treesize of output 63 [2024-11-14 02:45:10,922 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 109 treesize of output 74 [2024-11-14 02:45:12,733 INFO L349 Elim1Store]: treesize reduction 67, result has 18.3 percent of original size [2024-11-14 02:45:12,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 122 treesize of output 101 [2024-11-14 02:45:13,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 89 [2024-11-14 02:45:13,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 118 [2024-11-14 02:45:13,914 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:45:13,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 121 [2024-11-14 02:45:14,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:45:14,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 245 treesize of output 109 [2024-11-14 02:45:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 02:45:14,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:45:26,963 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:45:26,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997165645] [2024-11-14 02:45:26,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997165645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:45:26,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1619460725] [2024-11-14 02:45:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:26,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 02:45:26,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 02:45:26,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 02:45:26,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 02:45:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:29,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-14 02:45:29,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:32,069 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 104 treesize of output 55 [2024-11-14 02:45:33,339 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 104 treesize of output 55 [2024-11-14 02:45:34,681 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 101 treesize of output 63 [2024-11-14 02:45:36,392 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 109 treesize of output 74 [2024-11-14 02:45:38,218 INFO L349 Elim1Store]: treesize reduction 67, result has 18.3 percent of original size [2024-11-14 02:45:38,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 122 treesize of output 101 [2024-11-14 02:45:39,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 89 [2024-11-14 02:45:39,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 126 [2024-11-14 02:45:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 02:45:40,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:45:49,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1619460725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:45:49,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995347778] [2024-11-14 02:45:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:49,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:49,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:45:49,025 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:45:49,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 02:45:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:49,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 02:45:49,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:49,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 8 [2024-11-14 02:46:12,907 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 109 treesize of output 67 [2024-11-14 02:46:14,575 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 99 treesize of output 84 [2024-11-14 02:46:16,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 95 [2024-11-14 02:46:18,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 98 [2024-11-14 02:46:20,880 INFO L349 Elim1Store]: treesize reduction 79, result has 16.0 percent of original size [2024-11-14 02:46:20,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 122 [2024-11-14 02:46:21,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 110 [2024-11-14 02:46:22,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 147 [2024-11-14 02:46:23,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:46:23,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 45 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 180 treesize of output 172 [2024-11-14 02:46:26,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:46:26,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 258 treesize of output 138 [2024-11-14 02:46:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 02:46:29,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:47:15,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995347778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:47:15,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:47:15,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 15] total 36 [2024-11-14 02:47:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507874920] [2024-11-14 02:47:15,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:47:15,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-14 02:47:15,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:47:15,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-14 02:47:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=2103, Unknown=33, NotChecked=0, Total=2450 [2024-11-14 02:47:15,408 INFO L87 Difference]: Start difference. First operand 152 states and 203 transitions. Second operand has 37 states, 37 states have (on average 3.3783783783783785) internal successors, (125), 36 states have internal predecessors, (125), 11 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-14 02:47:28,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:47:33,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:47:41,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:47:43,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:47:46,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:47:51,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:47:53,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:47:55,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:07,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:09,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:15,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:17,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:19,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:21,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:23,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:26,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:28,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:30,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:32,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:34,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:36,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:38,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:40,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:42,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:44,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:46,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:48,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:50,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:52,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:55,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:57,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:48:59,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:01,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:03,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:05,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:07,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:09,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:11,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:13,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:15,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:17,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:19,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:21,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:23,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:25,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:28,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:30,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:32,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:34,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:36,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:38,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:40,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:42,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:44,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:46,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:48,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:50,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:53,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:49:59,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:59,373 INFO L93 Difference]: Finished difference Result 474 states and 643 transitions. [2024-11-14 02:49:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 02:49:59,374 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.3783783783783785) internal successors, (125), 36 states have internal predecessors, (125), 11 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 85 [2024-11-14 02:49:59,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:59,376 INFO L225 Difference]: With dead ends: 474 [2024-11-14 02:49:59,376 INFO L226 Difference]: Without dead ends: 325 [2024-11-14 02:49:59,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 123.8s TimeCoverageRelationStatistics Valid=730, Invalid=3389, Unknown=41, NotChecked=0, Total=4160 [2024-11-14 02:49:59,379 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 2154 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 177 mSolverCounterUnsat, 58 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2154 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 58 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:59,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2154 Valid, 1705 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2433 Invalid, 58 Unknown, 0 Unchecked, 139.4s Time] [2024-11-14 02:49:59,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-14 02:49:59,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 169. [2024-11-14 02:49:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 144 states have (on average 1.3402777777777777) internal successors, (193), 144 states have internal predecessors, (193), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 02:49:59,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 229 transitions. [2024-11-14 02:49:59,411 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 229 transitions. Word has length 85 [2024-11-14 02:49:59,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:59,412 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 229 transitions. [2024-11-14 02:49:59,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.3783783783783785) internal successors, (125), 36 states have internal predecessors, (125), 11 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-14 02:49:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 229 transitions. [2024-11-14 02:49:59,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 02:49:59,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:59,414 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:59,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-14 02:49:59,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-14 02:49:59,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 02:50:00,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:00,015 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:00,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:00,015 INFO L85 PathProgramCache]: Analyzing trace with hash -966398689, now seen corresponding path program 1 times [2024-11-14 02:50:00,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:50:00,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691243373] [2024-11-14 02:50:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:00,015 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 02:50:00,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:50:00,017 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:50:00,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:50:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:00,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 02:50:00,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:50:00,815 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 02:50:01,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-14 02:50:02,539 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 31 treesize of output 26 [2024-11-14 02:50:03,303 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 37 [2024-11-14 02:50:04,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2024-11-14 02:50:04,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 60 [2024-11-14 02:50:06,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:50:06,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 52 [2024-11-14 02:50:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 51 proven. 80 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-14 02:50:07,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:50:08,100 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:50:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691243373] [2024-11-14 02:50:08,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691243373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:50:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1131279166] [2024-11-14 02:50:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:08,101 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 02:50:08,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 02:50:08,103 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 02:50:08,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 02:50:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:09,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-14 02:50:09,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:50:10,152 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 11 [2024-11-14 02:50:10,717 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 11 [2024-11-14 02:50:12,302 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 02:50:13,741 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 37 treesize of output 42 [2024-11-14 02:50:15,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2024-11-14 02:50:16,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2024-11-14 02:50:16,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 73 [2024-11-14 02:50:20,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 62 [2024-11-14 02:50:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 02:50:20,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:50:24,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1131279166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:50:24,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317896956] [2024-11-14 02:50:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:24,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:24,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:50:24,552 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:50:24,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 02:50:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:24,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-14 02:50:24,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:50:25,161 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 27 treesize of output 19 [2024-11-14 02:50:46,945 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 31 treesize of output 22 [2024-11-14 02:50:56,501 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 02:50:57,583 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 02:50:58,608 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 37 treesize of output 42 [2024-11-14 02:51:00,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2024-11-14 02:51:00,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 65 [2024-11-14 02:51:04,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:51:04,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 58 [2024-11-14 02:51:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 27 proven. 83 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-14 02:51:04,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:51:17,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317896956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:51:17,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:51:17,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 42 [2024-11-14 02:51:17,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826991119] [2024-11-14 02:51:17,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:51:17,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-14 02:51:17,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:51:17,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-14 02:51:17,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=2509, Unknown=21, NotChecked=0, Total=2862 [2024-11-14 02:51:17,240 INFO L87 Difference]: Start difference. First operand 169 states and 229 transitions. Second operand has 43 states, 38 states have (on average 3.9473684210526314) internal successors, (150), 40 states have internal predecessors, (150), 16 states have call successors, (27), 12 states have call predecessors, (27), 15 states have return successors, (27), 13 states have call predecessors, (27), 16 states have call successors, (27) [2024-11-14 02:51:32,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:34,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:36,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:45,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:47,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:49,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:51,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:53,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:55,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:57,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:51:59,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:01,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:03,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:05,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:07,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:09,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:11,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:13,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:16,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:20,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:22,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:24,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:34,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:36,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:38,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:40,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:42,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:44,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:47,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:49,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:51,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:53,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:55,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:52:57,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:00,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:02,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:04,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:06,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:08,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:10,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:12,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:14,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:16,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:18,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:20,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:22,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:25,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:27,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:29,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:31,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:33,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:35,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:53:39,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:00,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:02,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:04,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:06,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:08,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:10,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:12,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:14,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:16,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:18,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:20,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:22,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:25,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:27,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:29,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:31,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:33,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:35,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 02:54:35,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:54:35,278 INFO L93 Difference]: Finished difference Result 899 states and 1195 transitions. [2024-11-14 02:54:35,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-14 02:54:35,281 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 38 states have (on average 3.9473684210526314) internal successors, (150), 40 states have internal predecessors, (150), 16 states have call successors, (27), 12 states have call predecessors, (27), 15 states have return successors, (27), 13 states have call predecessors, (27), 16 states have call successors, (27) Word has length 86 [2024-11-14 02:54:35,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:54:35,285 INFO L225 Difference]: With dead ends: 899 [2024-11-14 02:54:35,285 INFO L226 Difference]: Without dead ends: 733 [2024-11-14 02:54:35,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3652 ImplicationChecksByTransitivity, 90.2s TimeCoverageRelationStatistics Valid=2189, Invalid=10893, Unknown=28, NotChecked=0, Total=13110 [2024-11-14 02:54:35,289 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 2499 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 3742 mSolverCounterSat, 240 mSolverCounterUnsat, 71 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 4053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 3742 IncrementalHoareTripleChecker+Invalid, 71 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 165.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:54:35,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 2990 Invalid, 4053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 3742 Invalid, 71 Unknown, 0 Unchecked, 165.4s Time] [2024-11-14 02:54:35,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-14 02:54:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 604. [2024-11-14 02:54:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 540 states have (on average 1.3537037037037036) internal successors, (731), 543 states have internal predecessors, (731), 39 states have call successors, (39), 24 states have call predecessors, (39), 24 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 02:54:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 809 transitions. [2024-11-14 02:54:35,390 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 809 transitions. Word has length 86 [2024-11-14 02:54:35,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:54:35,391 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 809 transitions. [2024-11-14 02:54:35,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 38 states have (on average 3.9473684210526314) internal successors, (150), 40 states have internal predecessors, (150), 16 states have call successors, (27), 12 states have call predecessors, (27), 15 states have return successors, (27), 13 states have call predecessors, (27), 16 states have call successors, (27) [2024-11-14 02:54:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 809 transitions. [2024-11-14 02:54:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 02:54:35,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:54:35,393 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:35,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-14 02:54:35,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 02:54:35,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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)] Forceful destruction successful, exit code 0 [2024-11-14 02:54:35,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:54:35,994 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:54:35,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:54:35,995 INFO L85 PathProgramCache]: Analyzing trace with hash -243792969, now seen corresponding path program 1 times [2024-11-14 02:54:35,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:54:35,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293509119] [2024-11-14 02:54:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:35,995 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 02:54:35,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:54:35,999 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:54:36,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:54:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:36,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:54:36,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:54:36,480 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 02:54:36,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:54:36,480 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:54:36,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293509119] [2024-11-14 02:54:36,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293509119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:54:36,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:54:36,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:54:36,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427330841] [2024-11-14 02:54:36,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:54:36,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:54:36,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:54:36,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:54:36,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:54:36,482 INFO L87 Difference]: Start difference. First operand 604 states and 809 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:54:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:54:37,210 INFO L93 Difference]: Finished difference Result 1473 states and 1963 transitions. [2024-11-14 02:54:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:54:37,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-14 02:54:37,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:54:37,217 INFO L225 Difference]: With dead ends: 1473 [2024-11-14 02:54:37,217 INFO L226 Difference]: Without dead ends: 872 [2024-11-14 02:54:37,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:54:37,219 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 102 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:54:37,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 307 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 02:54:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-14 02:54:37,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 792. [2024-11-14 02:54:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 698 states have (on average 1.333810888252149) internal successors, (931), 701 states have internal predecessors, (931), 57 states have call successors, (57), 36 states have call predecessors, (57), 36 states have return successors, (57), 54 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-14 02:54:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1045 transitions. [2024-11-14 02:54:37,394 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1045 transitions. Word has length 86 [2024-11-14 02:54:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:54:37,394 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1045 transitions. [2024-11-14 02:54:37,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 02:54:37,395 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1045 transitions. [2024-11-14 02:54:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 02:54:37,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:54:37,396 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:37,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:54:37,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:54:37,597 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:54:37,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:54:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1996167741, now seen corresponding path program 1 times [2024-11-14 02:54:37,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:54:37,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870926230] [2024-11-14 02:54:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:37,598 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 02:54:37,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:54:37,600 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:54:37,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:54:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:37,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 02:54:37,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:54:38,205 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 02:54:39,459 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 99 treesize of output 61 [2024-11-14 02:54:40,472 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 110 treesize of output 64 [2024-11-14 02:54:41,239 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 107 treesize of output 72 [2024-11-14 02:54:42,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 75 [2024-11-14 02:54:43,215 INFO L349 Elim1Store]: treesize reduction 67, result has 18.3 percent of original size [2024-11-14 02:54:43,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 120 treesize of output 99 [2024-11-14 02:54:43,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:54:43,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 157 treesize of output 73 [2024-11-14 02:54:43,794 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 38 proven. 74 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 02:54:43,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:54:44,353 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:54:44,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870926230] [2024-11-14 02:54:44,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870926230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:54:44,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [87337022] [2024-11-14 02:54:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:44,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 02:54:44,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 02:54:44,355 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 02:54:44,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-14 02:54:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:46,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 02:54:46,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:54:46,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 1 [2024-11-14 02:54:49,053 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 102 treesize of output 53 [2024-11-14 02:54:49,958 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 102 treesize of output 53 [2024-11-14 02:54:51,016 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 99 treesize of output 61 [2024-11-14 02:54:52,221 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 110 treesize of output 64 [2024-11-14 02:54:53,406 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-11-14 02:54:53,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 88 [2024-11-14 02:54:54,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 69 [2024-11-14 02:54:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 38 proven. 74 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 02:54:54,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:54:54,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [87337022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:54:54,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344059187] [2024-11-14 02:54:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:54,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:54:54,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:54:54,459 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:54:54,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 02:54:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:54,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-14 02:54:54,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:54:55,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 1 [2024-11-14 02:55:03,099 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 59 treesize of output 34 [2024-11-14 02:55:03,861 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 56 treesize of output 42 [2024-11-14 02:55:05,305 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 64 treesize of output 53 [2024-11-14 02:55:06,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 64 [2024-11-14 02:55:10,332 INFO L349 Elim1Store]: treesize reduction 79, result has 16.0 percent of original size [2024-11-14 02:55:10,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 91 [2024-11-14 02:55:11,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 116 [2024-11-14 02:55:11,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:55:11,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 45 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 160 treesize of output 122 [2024-11-14 02:55:12,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 02:55:12,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 216 treesize of output 96 [2024-11-14 02:55:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 54 proven. 74 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 02:55:13,121 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:55:22,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344059187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:55:22,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:55:22,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 17] total 41 [2024-11-14 02:55:22,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753535737] [2024-11-14 02:55:22,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:55:22,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-14 02:55:22,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:55:22,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-14 02:55:22,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=2205, Unknown=2, NotChecked=0, Total=2450 [2024-11-14 02:55:22,134 INFO L87 Difference]: Start difference. First operand 792 states and 1045 transitions. Second operand has 42 states, 39 states have (on average 3.4358974358974357) internal successors, (134), 37 states have internal predecessors, (134), 13 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (27), 11 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-14 02:56:35,945 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:56:35,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-14 02:56:35,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 276 SyntacticMatches, 3 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2874 ImplicationChecksByTransitivity, 55.6s TimeCoverageRelationStatistics Valid=1698, Invalid=9430, Unknown=2, NotChecked=0, Total=11130 [2024-11-14 02:56:35,948 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1371 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 4748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:56:35,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 2579 Invalid, 4748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 4579 Invalid, 0 Unknown, 0 Unchecked, 41.5s Time] [2024-11-14 02:56:35,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-14 02:56:36,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 02:56:36,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 02:56:36,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:56:36,550 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/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.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) 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) ... 36 more [2024-11-14 02:56:36,557 INFO L158 Benchmark]: Toolchain (without parser) took 751377.41ms. Allocated memory was 83.9MB in the beginning and 268.4MB in the end (delta: 184.5MB). Free memory was 59.1MB in the beginning and 106.6MB in the end (delta: -47.4MB). Peak memory consumption was 183.1MB. Max. memory is 16.1GB. [2024-11-14 02:56:36,557 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 936B). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:56:36,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.99ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 43.8MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 02:56:36,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.46ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 40.9MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:56:36,558 INFO L158 Benchmark]: Boogie Preprocessor took 48.93ms. Allocated memory is still 83.9MB. Free memory was 40.9MB in the beginning and 38.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:56:36,558 INFO L158 Benchmark]: RCFGBuilder took 1050.34ms. Allocated memory is still 83.9MB. Free memory was 38.2MB in the beginning and 33.3MB in the end (delta: 5.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-11-14 02:56:36,558 INFO L158 Benchmark]: TraceAbstraction took 749739.66ms. Allocated memory was 83.9MB in the beginning and 268.4MB in the end (delta: 184.5MB). Free memory was 32.6MB in the beginning and 106.6MB in the end (delta: -74.0MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. [2024-11-14 02:56:36,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 936B). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.99ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 43.8MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.46ms. Allocated memory is still 83.9MB. Free memory was 43.8MB in the beginning and 40.9MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.93ms. Allocated memory is still 83.9MB. Free memory was 40.9MB in the beginning and 38.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1050.34ms. Allocated memory is still 83.9MB. Free memory was 38.2MB in the beginning and 33.3MB in the end (delta: 5.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 749739.66ms. Allocated memory was 83.9MB in the beginning and 268.4MB in the end (delta: 184.5MB). Free memory was 32.6MB in the beginning and 106.6MB in the end (delta: -74.0MB). Peak memory consumption was 161.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156bceea-3069-4a35-a196-bfd92d8bb52c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken