./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.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_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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_53bca053-6533-49f2-b7d4-4456863b3c80/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 c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:21:37,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:21:37,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:21:37,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:21:37,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:21:37,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:21:37,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:21:37,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:21:37,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:21:37,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:21:37,294 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:21:37,295 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:21:37,296 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:21:37,296 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:21:37,296 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:21:37,296 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:21:37,296 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:21:37,296 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:21:37,296 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:21:37,297 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:21:37,297 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:21:37,297 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:21:37,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:21:37,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:21:37,298 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:21:37,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:21:37,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:21:37,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:21:37,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:21:37,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:21:37,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:21:37,300 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:21:37,300 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:21:37,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:21:37,300 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:21:37,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:21:37,301 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:21:37,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:21:37,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:21:37,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:21:37,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:21:37,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:21:37,302 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:21:37,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:21:37,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:21:37,303 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:21:37,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:21:37,303 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_53bca053-6533-49f2-b7d4-4456863b3c80/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 -> c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e [2024-11-14 04:21:37,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:21:37,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:21:37,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:21:37,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:21:37,738 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:21:37,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i Unable to find full path for "g++" [2024-11-14 04:21:39,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:21:40,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:21:40,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i [2024-11-14 04:21:40,529 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data/308a6085a/70bcc9982f264fcebb521d3d4545f5bd/FLAG24125446c [2024-11-14 04:21:40,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data/308a6085a/70bcc9982f264fcebb521d3d4545f5bd [2024-11-14 04:21:40,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:21:40,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:21:40,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:21:40,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:21:40,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:21:40,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:21:40" (1/1) ... [2024-11-14 04:21:40,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6e092a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:40, skipping insertion in model container [2024-11-14 04:21:40,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:21:40" (1/1) ... [2024-11-14 04:21:40,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:21:40,835 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_53bca053-6533-49f2-b7d4-4456863b3c80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2024-11-14 04:21:40,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:21:40,948 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:21:40,963 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_53bca053-6533-49f2-b7d4-4456863b3c80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2024-11-14 04:21:41,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:21:41,045 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:21:41,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41 WrapperNode [2024-11-14 04:21:41,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:21:41,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:21:41,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:21:41,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:21:41,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,168 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 479 [2024-11-14 04:21:41,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:21:41,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:21:41,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:21:41,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:21:41,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:21:41,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:21:41,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:21:41,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:21:41,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (1/1) ... [2024-11-14 04:21:41,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:21:41,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:21:41,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:21:41,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:21:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:21:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:21:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 04:21:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 04:21:41,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:21:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 04:21:41,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:21:41,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:21:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:21:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:21:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:21:41,552 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:21:41,555 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:21:42,375 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2024-11-14 04:21:42,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:21:43,176 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:21:43,177 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:21:43,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:43 BoogieIcfgContainer [2024-11-14 04:21:43,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:21:43,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:21:43,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:21:43,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:21:43,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:21:40" (1/3) ... [2024-11-14 04:21:43,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bf5d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:21:43, skipping insertion in model container [2024-11-14 04:21:43,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:41" (2/3) ... [2024-11-14 04:21:43,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bf5d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:21:43, skipping insertion in model container [2024-11-14 04:21:43,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:43" (3/3) ... [2024-11-14 04:21:43,190 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-26.i [2024-11-14 04:21:43,211 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:21:43,213 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-26.i that has 2 procedures, 27 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:21:43,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:21:43,308 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;@6c173022, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:21:43,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:21:43,313 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 04:21:43,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 04:21:43,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:21:43,325 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 04:21:43,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:21:43,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:21:43,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2140309011, now seen corresponding path program 1 times [2024-11-14 04:21:43,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:21:43,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605383575] [2024-11-14 04:21:43,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:21:43,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:21:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:21:44,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391060934] [2024-11-14 04:21:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:21:44,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:21:44,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:21:44,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:21:44,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:21:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:21:45,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:21:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:21:47,222 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:21:47,225 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:21:47,226 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:21:47,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:21:47,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 04:21:47,436 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:21:47,537 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:21:47,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:21:47 BoogieIcfgContainer [2024-11-14 04:21:47,545 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:21:47,547 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:21:47,547 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:21:47,547 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:21:47,548 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:43" (3/4) ... [2024-11-14 04:21:47,552 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:21:47,553 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:21:47,554 INFO L158 Benchmark]: Toolchain (without parser) took 6958.42ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 93.9MB in the beginning and 101.6MB in the end (delta: -7.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2024-11-14 04:21:47,558 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:21:47,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.13ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 78.5MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:21:47,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.98ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 74.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:21:47,559 INFO L158 Benchmark]: Boogie Preprocessor took 98.83ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 71.3MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:21:47,560 INFO L158 Benchmark]: RCFGBuilder took 1908.99ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 67.5MB in the end (delta: 3.8MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2024-11-14 04:21:47,560 INFO L158 Benchmark]: TraceAbstraction took 4364.13ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 66.8MB in the beginning and 101.6MB in the end (delta: -34.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-11-14 04:21:47,561 INFO L158 Benchmark]: Witness Printer took 6.19ms. Allocated memory is still 159.4MB. Free memory was 101.6MB in the beginning and 101.6MB in the end (delta: 11.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:21:47,567 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.13ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 78.5MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.98ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 74.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 98.83ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 71.3MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1908.99ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 67.5MB in the end (delta: 3.8MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4364.13ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 66.8MB in the beginning and 101.6MB in the end (delta: -34.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Witness Printer took 6.19ms. Allocated memory is still 159.4MB. Free memory was 101.6MB in the beginning and 101.6MB in the end (delta: 11.7kB). 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 someBinaryFLOATComparisonOperation at line 60, overapproximation of someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 41. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] float float_Array_0[2][2] = { {8.75, 199.5}, {1.125, 100000000000000.3} }; [L25-L27] signed long int signed_long_int_Array_0[1] = { -32 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 1, -1 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 2, 64 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 50 }; [L37] unsigned char last_1_unsigned_char_Array_0_1_ = 64; [L80] isInitial = 1 [L81] FCALL initially() [L82] COND TRUE 1 [L83] CALL updateLastVariables() [L73] EXPR unsigned_char_Array_0[1] [L73] last_1_unsigned_char_Array_0_1_ = unsigned_char_Array_0[1] [L83] RET updateLastVariables() [L84] CALL updateVariables() [L57] float_Array_0[0][1] = __VERIFIER_nondet_float() [L58] EXPR float_Array_0[0][1] [L58] EXPR float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F [L58] EXPR float_Array_0[0][1] [L58] EXPR float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F [L58] EXPR (float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L58] CALL assume_abort_if_not((float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not((float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] float_Array_0[1][1] = __VERIFIER_nondet_float() [L60] EXPR float_Array_0[1][1] [L60] EXPR float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F [L60] EXPR float_Array_0[1][1] [L60] EXPR float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F [L60] EXPR (float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 4611686.018427382800e+12F && float_Array_0[1][1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L60] CALL assume_abort_if_not((float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 4611686.018427382800e+12F && float_Array_0[1][1] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not((float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 4611686.018427382800e+12F && float_Array_0[1][1] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L61] signed_long_int_Array_0[0] = __VERIFIER_nondet_long() [L62] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L62] CALL assume_abort_if_not(signed_long_int_Array_0[0] >= -2147483648) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(signed_long_int_Array_0[0] >= -2147483648) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L63] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L63] CALL assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L64] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L64] CALL assume_abort_if_not(signed_long_int_Array_0[0] != 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(signed_long_int_Array_0[0] != 0) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L65] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L66] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L66] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -32767) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -32767) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L67] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L67] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L68] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L69] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L69] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] RET updateVariables() [L85] CALL step() [L41] EXPR float_Array_0[0][1] [L41] EXPR float_Array_0[1][1] [L41] float_Array_0[1][0] = ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1]) [L42] EXPR signed_short_int_Array_0[0] [L42] COND TRUE (- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4)))) [L43] EXPR unsigned_char_Array_0[0] [L43] unsigned_char_Array_0[1] = unsigned_char_Array_0[0] [L45] EXPR float_Array_0[0][1] [L45] float_Array_0[0][0] = float_Array_0[0][1] [L46] EXPR float_Array_0[0][0] [L46] EXPR float_Array_0[0][0] [L46] COND TRUE float_Array_0[0][0] > float_Array_0[0][0] [L47] EXPR unsigned_char_Array_0[1] [L47] EXPR unsigned_char_Array_0[1] [L47] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L47] EXPR unsigned_char_Array_0[1] [L47] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L47] signed_short_int_Array_0[1] = ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) [L51] EXPR unsigned_char_Array_0[1] [L51] EXPR unsigned_char_Array_0[1] [L51] EXPR signed_short_int_Array_0[1] [L51] signed long int stepLocal_0 = unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1]); [L52] EXPR unsigned_char_Array_0[1] [L52] EXPR signed_short_int_Array_0[1] [L52] EXPR signed_long_int_Array_0[0] [L52] COND FALSE !(stepLocal_0 != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0]))) [L85] RET step() [L86] CALL, EXPR property() [L76] EXPR float_Array_0[0][0] [L76] EXPR float_Array_0[0][0] [L76] EXPR (float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))))))) [L76] EXPR signed_short_int_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR (((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR (((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) [L76] EXPR (float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))))))) [L76] EXPR ((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1]))) [L76] EXPR (((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) [L76] EXPR ((((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1)) && (((unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1])) != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) (((((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])))) + unsigned_char_Array_0[1]))) : 1) [L76] EXPR (((((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1)) && (((unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1])) != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) (((((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])))) + unsigned_char_Array_0[1]))) : 1)) && (float_Array_0[0][0] == ((float) float_Array_0[0][1])) [L76-L77] return (((((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1)) && (((unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1])) != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) (((((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])))) + unsigned_char_Array_0[1]))) : 1)) && (float_Array_0[0][0] == ((float) float_Array_0[0][1])) ; [L86] RET, EXPR property() [L86] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L19] reach_error() VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, 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: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 04:21:47,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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_53bca053-6533-49f2-b7d4-4456863b3c80/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 c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:21:50,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:21:51,063 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:21:51,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:21:51,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:21:51,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:21:51,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:21:51,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:21:51,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:21:51,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:21:51,101 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:21:51,101 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:21:51,102 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:21:51,102 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:21:51,102 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:21:51,102 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:21:51,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:21:51,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:21:51,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:21:51,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:21:51,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:21:51,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:21:51,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:21:51,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:21:51,103 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:21:51,104 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:21:51,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:21:51,104 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:21:51,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:21:51,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:21:51,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:21:51,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:21:51,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:21:51,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:21:51,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:21:51,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:21:51,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:21:51,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:21:51,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:21:51,106 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:21:51,106 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:21:51,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:21:51,106 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:21:51,106 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_53bca053-6533-49f2-b7d4-4456863b3c80/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 -> c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e [2024-11-14 04:21:51,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:21:51,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:21:51,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:21:51,547 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:21:51,547 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:21:51,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i Unable to find full path for "g++" [2024-11-14 04:21:53,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:21:54,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:21:54,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i [2024-11-14 04:21:54,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data/433b618e4/52bdfb70e48844ebb6d20e156b50a0d4/FLAG99f59353e [2024-11-14 04:21:54,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/data/433b618e4/52bdfb70e48844ebb6d20e156b50a0d4 [2024-11-14 04:21:54,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:21:54,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:21:54,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:21:54,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:21:54,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:21:54,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10172b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54, skipping insertion in model container [2024-11-14 04:21:54,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:21:54,497 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_53bca053-6533-49f2-b7d4-4456863b3c80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2024-11-14 04:21:54,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:21:54,659 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:21:54,673 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_53bca053-6533-49f2-b7d4-4456863b3c80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2024-11-14 04:21:54,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:21:54,754 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:21:54,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54 WrapperNode [2024-11-14 04:21:54,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:21:54,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:21:54,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:21:54,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:21:54,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,818 INFO L138 Inliner]: procedures = 36, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 477 [2024-11-14 04:21:54,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:21:54,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:21:54,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:21:54,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:21:54,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:21:54,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:21:54,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:21:54,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:21:54,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (1/1) ... [2024-11-14 04:21:54,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:21:54,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:21:54,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:21:54,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:21:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 04:21:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:21:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:21:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:21:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:21:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 04:21:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-14 04:21:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 04:21:55,174 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:21:55,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:21:57,018 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2024-11-14 04:21:57,018 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:21:57,040 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:21:57,040 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:21:57,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:57 BoogieIcfgContainer [2024-11-14 04:21:57,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:21:57,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:21:57,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:21:57,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:21:57,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:21:54" (1/3) ... [2024-11-14 04:21:57,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd43a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:21:57, skipping insertion in model container [2024-11-14 04:21:57,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:21:54" (2/3) ... [2024-11-14 04:21:57,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd43a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:21:57, skipping insertion in model container [2024-11-14 04:21:57,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:21:57" (3/3) ... [2024-11-14 04:21:57,056 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-26.i [2024-11-14 04:21:57,075 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:21:57,077 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-26.i that has 2 procedures, 93 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:21:57,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:21:57,168 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;@1fbc41d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:21:57,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:21:57,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 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 04:21:57,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:21:57,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:21:57,186 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, 1, 1, 1] [2024-11-14 04:21:57,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:21:57,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:21:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1806593298, now seen corresponding path program 1 times [2024-11-14 04:21:57,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:21:57,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128605734] [2024-11-14 04:21:57,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:21:57,213 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 04:21:57,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:21:57,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:57,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:21:57,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:21:57,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:21:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 04:21:57,810 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:21:57,810 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:21:57,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128605734] [2024-11-14 04:21:57,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128605734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:21:57,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:21:57,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:21:57,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304507885] [2024-11-14 04:21:57,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:21:57,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:21:57,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:21:57,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:21:57,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:21:57,846 INFO L87 Difference]: Start difference. First operand has 93 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 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 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 04:21:57,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:21:57,886 INFO L93 Difference]: Finished difference Result 179 states and 271 transitions. [2024-11-14 04:21:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:21:57,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2024-11-14 04:21:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:21:57,898 INFO L225 Difference]: With dead ends: 179 [2024-11-14 04:21:57,900 INFO L226 Difference]: Without dead ends: 89 [2024-11-14 04:21:57,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:21:57,912 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:21:57,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:21:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-14 04:21:57,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-14 04:21:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 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 04:21:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2024-11-14 04:21:57,963 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 89 [2024-11-14 04:21:57,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:21:57,963 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2024-11-14 04:21:57,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-14 04:21:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2024-11-14 04:21:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:21:57,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:21:57,967 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, 1, 1, 1] [2024-11-14 04:21:57,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:58,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:58,169 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:21:58,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:21:58,170 INFO L85 PathProgramCache]: Analyzing trace with hash -618991228, now seen corresponding path program 1 times [2024-11-14 04:21:58,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:21:58,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734092183] [2024-11-14 04:21:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:21:58,171 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 04:21:58,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:21:58,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:58,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:21:58,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:21:58,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:21:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 04:21:58,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:21:58,827 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:21:58,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734092183] [2024-11-14 04:21:58,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734092183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:21:58,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:21:58,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:21:58,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827124338] [2024-11-14 04:21:58,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:21:58,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:21:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:21:58,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:21:58,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:21:58,834 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:21:59,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:21:59,228 INFO L93 Difference]: Finished difference Result 177 states and 254 transitions. [2024-11-14 04:21:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:21:59,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2024-11-14 04:21:59,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:21:59,239 INFO L225 Difference]: With dead ends: 177 [2024-11-14 04:21:59,241 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 04:21:59,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 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 04:21:59,243 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:21:59,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 364 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:21:59,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 04:21:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 04:21:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 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 04:21:59,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2024-11-14 04:21:59,259 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 89 [2024-11-14 04:21:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:21:59,261 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2024-11-14 04:21:59,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:21:59,262 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2024-11-14 04:21:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:21:59,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:21:59,265 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, 1, 1, 1] [2024-11-14 04:21:59,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:21:59,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:59,466 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:21:59,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:21:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1941871618, now seen corresponding path program 1 times [2024-11-14 04:21:59,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:21:59,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869672149] [2024-11-14 04:21:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:21:59,469 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 04:21:59,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:21:59,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:21:59,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:00,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:22:00,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:00,134 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 04:22:00,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:00,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:00,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869672149] [2024-11-14 04:22:00,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869672149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:00,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:00,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:22:00,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039489814] [2024-11-14 04:22:00,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:00,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:22:00,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:00,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:22:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:22:00,137 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 04:22:00,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:00,263 INFO L93 Difference]: Finished difference Result 184 states and 262 transitions. [2024-11-14 04:22:00,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:22:00,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 89 [2024-11-14 04:22:00,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:00,266 INFO L225 Difference]: With dead ends: 184 [2024-11-14 04:22:00,266 INFO L226 Difference]: Without dead ends: 96 [2024-11-14 04:22:00,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 04:22:00,268 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:00,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 475 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:22:00,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-14 04:22:00,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-14 04:22:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 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 04:22:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 133 transitions. [2024-11-14 04:22:00,283 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 133 transitions. Word has length 89 [2024-11-14 04:22:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:00,284 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 133 transitions. [2024-11-14 04:22:00,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 04:22:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 133 transitions. [2024-11-14 04:22:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:22:00,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:00,288 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, 1, 1, 1] [2024-11-14 04:22:00,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:22:00,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:00,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:00,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:00,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1943718660, now seen corresponding path program 1 times [2024-11-14 04:22:00,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:00,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652172799] [2024-11-14 04:22:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:00,491 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 04:22:00,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:00,493 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:00,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:01,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:22:01,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:01,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-11-14 04:22:01,316 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 04:22:01,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:01,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:01,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652172799] [2024-11-14 04:22:01,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652172799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:01,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:01,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:22:01,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676168213] [2024-11-14 04:22:01,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:01,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:22:01,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:01,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:22:01,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:22:01,322 INFO L87 Difference]: Start difference. First operand 95 states and 133 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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 04:22:02,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:02,654 INFO L93 Difference]: Finished difference Result 188 states and 264 transitions. [2024-11-14 04:22:02,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:22:02,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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 89 [2024-11-14 04:22:02,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:02,656 INFO L225 Difference]: With dead ends: 188 [2024-11-14 04:22:02,657 INFO L226 Difference]: Without dead ends: 96 [2024-11-14 04:22:02,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:22:02,658 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 122 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:02,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 383 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 04:22:02,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-14 04:22:02,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-14 04:22:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 84 states have internal predecessors, (114), 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 04:22:02,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-14 04:22:02,676 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 89 [2024-11-14 04:22:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:02,677 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-14 04:22:02,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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 04:22:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-14 04:22:02,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 04:22:02,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:02,679 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, 1, 1, 1, 1, 1] [2024-11-14 04:22:02,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:02,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:02,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:02,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:02,881 INFO L85 PathProgramCache]: Analyzing trace with hash 880091102, now seen corresponding path program 1 times [2024-11-14 04:22:02,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:02,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337496252] [2024-11-14 04:22:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:02,882 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 04:22:02,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:02,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:02,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 04:22:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:03,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:03,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:03,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-11-14 04:22:03,511 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 04:22:03,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:03,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:03,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337496252] [2024-11-14 04:22:03,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337496252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:03,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:03,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:03,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740987724] [2024-11-14 04:22:03,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:03,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:03,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:03,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:03,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:03,517 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 04:22:03,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:03,986 INFO L93 Difference]: Finished difference Result 185 states and 258 transitions. [2024-11-14 04:22:03,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:03,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 91 [2024-11-14 04:22:03,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:03,989 INFO L225 Difference]: With dead ends: 185 [2024-11-14 04:22:03,989 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 04:22:03,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 04:22:03,992 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:03,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:22:03,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 04:22:04,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 04:22:04,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.3414634146341464) internal successors, (110), 82 states have internal predecessors, (110), 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 04:22:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 128 transitions. [2024-11-14 04:22:04,004 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 128 transitions. Word has length 91 [2024-11-14 04:22:04,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:04,004 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 128 transitions. [2024-11-14 04:22:04,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 04:22:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 128 transitions. [2024-11-14 04:22:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 04:22:04,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:04,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:04,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 04:22:04,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:04,208 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:04,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1740723634, now seen corresponding path program 1 times [2024-11-14 04:22:04,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:04,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547675043] [2024-11-14 04:22:04,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:04,209 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 04:22:04,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:04,213 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:04,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 04:22:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:04,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:04,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:04,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-14 04:22:04,734 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 04:22:04,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:04,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:04,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547675043] [2024-11-14 04:22:04,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547675043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:04,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:04,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:04,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991152606] [2024-11-14 04:22:04,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:04,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:04,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:04,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:04,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:04,738 INFO L87 Difference]: Start difference. First operand 93 states and 128 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:05,341 INFO L93 Difference]: Finished difference Result 183 states and 253 transitions. [2024-11-14 04:22:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:05,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 96 [2024-11-14 04:22:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:05,344 INFO L225 Difference]: With dead ends: 183 [2024-11-14 04:22:05,344 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 04:22:05,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 04:22:05,345 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:05,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:22:05,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 04:22:05,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 04:22:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.329268292682927) internal successors, (109), 82 states have internal predecessors, (109), 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 04:22:05,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 127 transitions. [2024-11-14 04:22:05,360 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 127 transitions. Word has length 96 [2024-11-14 04:22:05,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:05,360 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 127 transitions. [2024-11-14 04:22:05,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:05,361 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 127 transitions. [2024-11-14 04:22:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 04:22:05,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:05,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:05,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-14 04:22:05,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:05,565 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:05,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1881272244, now seen corresponding path program 1 times [2024-11-14 04:22:05,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:05,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881636731] [2024-11-14 04:22:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:05,566 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 04:22:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:05,571 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:05,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:06,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:06,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:06,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-14 04:22:06,222 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 04:22:06,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:06,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:06,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881636731] [2024-11-14 04:22:06,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881636731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:06,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:06,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:06,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158020944] [2024-11-14 04:22:06,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:06,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:06,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:06,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:06,225 INFO L87 Difference]: Start difference. First operand 93 states and 127 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:06,656 INFO L93 Difference]: Finished difference Result 183 states and 251 transitions. [2024-11-14 04:22:06,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 96 [2024-11-14 04:22:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:06,658 INFO L225 Difference]: With dead ends: 183 [2024-11-14 04:22:06,658 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 04:22:06,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 04:22:06,659 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:06,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:22:06,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 04:22:06,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 04:22:06,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 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 04:22:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 126 transitions. [2024-11-14 04:22:06,667 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 126 transitions. Word has length 96 [2024-11-14 04:22:06,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:06,668 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 126 transitions. [2024-11-14 04:22:06,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:06,668 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 126 transitions. [2024-11-14 04:22:06,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 04:22:06,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:06,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:06,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-14 04:22:06,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:06,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:06,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:06,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1990993226, now seen corresponding path program 1 times [2024-11-14 04:22:06,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:06,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409020220] [2024-11-14 04:22:06,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:06,872 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 04:22:06,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:06,876 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:06,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:07,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:07,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:07,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-14 04:22:07,515 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 04:22:07,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:07,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:07,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409020220] [2024-11-14 04:22:07,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409020220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:07,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:07,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:07,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140265730] [2024-11-14 04:22:07,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:07,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:07,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:07,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:07,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:07,517 INFO L87 Difference]: Start difference. First operand 93 states and 126 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:07,556 INFO L93 Difference]: Finished difference Result 183 states and 249 transitions. [2024-11-14 04:22:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:07,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 96 [2024-11-14 04:22:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:07,560 INFO L225 Difference]: With dead ends: 183 [2024-11-14 04:22:07,560 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 04:22:07,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 04:22:07,562 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:07,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:22:07,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 04:22:07,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 04:22:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 82 states have internal predecessors, (107), 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 04:22:07,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 125 transitions. [2024-11-14 04:22:07,575 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 125 transitions. Word has length 96 [2024-11-14 04:22:07,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:07,576 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 125 transitions. [2024-11-14 04:22:07,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:07,577 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 125 transitions. [2024-11-14 04:22:07,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 04:22:07,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:07,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:07,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:07,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:07,784 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:07,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:07,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1292856820, now seen corresponding path program 1 times [2024-11-14 04:22:07,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:07,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46655096] [2024-11-14 04:22:07,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:07,785 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 04:22:07,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:07,788 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:07,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:08,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:08,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:08,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-11-14 04:22:08,366 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 04:22:08,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:08,367 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:08,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46655096] [2024-11-14 04:22:08,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46655096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:08,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:08,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:08,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954178183] [2024-11-14 04:22:08,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:08,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:08,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:08,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:08,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:08,369 INFO L87 Difference]: Start difference. First operand 93 states and 125 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:08,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:08,402 INFO L93 Difference]: Finished difference Result 181 states and 245 transitions. [2024-11-14 04:22:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:08,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 96 [2024-11-14 04:22:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:08,405 INFO L225 Difference]: With dead ends: 181 [2024-11-14 04:22:08,405 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 04:22:08,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 04:22:08,406 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:08,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:22:08,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 04:22:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 04:22:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.3) internal successors, (104), 80 states have internal predecessors, (104), 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 04:22:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2024-11-14 04:22:08,413 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 122 transitions. Word has length 96 [2024-11-14 04:22:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:08,413 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 122 transitions. [2024-11-14 04:22:08,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 04:22:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 122 transitions. [2024-11-14 04:22:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:22:08,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:08,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:08,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:08,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:08,616 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:08,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1107158254, now seen corresponding path program 1 times [2024-11-14 04:22:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:08,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312918868] [2024-11-14 04:22:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:08,617 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 04:22:08,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:08,622 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:08,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 (11)] Waiting until timeout for monitored process [2024-11-14 04:22:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:09,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:09,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:09,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-14 04:22:09,372 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 04:22:09,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:09,373 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:09,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312918868] [2024-11-14 04:22:09,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312918868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:09,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:09,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670603769] [2024-11-14 04:22:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:09,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:09,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:09,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:09,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:09,375 INFO L87 Difference]: Start difference. First operand 91 states and 122 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:22:09,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:09,550 INFO L93 Difference]: Finished difference Result 179 states and 241 transitions. [2024-11-14 04:22:09,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:09,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 101 [2024-11-14 04:22:09,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:09,552 INFO L225 Difference]: With dead ends: 179 [2024-11-14 04:22:09,553 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 04:22:09,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 04:22:09,554 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:09,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:22:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 04:22:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 04:22:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.2875) internal successors, (103), 80 states have internal predecessors, (103), 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 04:22:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 121 transitions. [2024-11-14 04:22:09,567 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 121 transitions. Word has length 101 [2024-11-14 04:22:09,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:09,568 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 121 transitions. [2024-11-14 04:22:09,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:22:09,568 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 121 transitions. [2024-11-14 04:22:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:22:09,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:09,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:09,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 (11)] Ended with exit code 0 [2024-11-14 04:22:09,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:09,770 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:09,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1498865300, now seen corresponding path program 1 times [2024-11-14 04:22:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:09,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820057329] [2024-11-14 04:22:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:09,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:22:09,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:09,774 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:09,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-14 04:22:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:10,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:10,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:10,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-14 04:22:10,465 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 04:22:10,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:10,465 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:10,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820057329] [2024-11-14 04:22:10,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820057329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:10,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:10,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:10,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770315895] [2024-11-14 04:22:10,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:10,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:10,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:10,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:10,467 INFO L87 Difference]: Start difference. First operand 91 states and 121 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:22:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:10,497 INFO L93 Difference]: Finished difference Result 179 states and 239 transitions. [2024-11-14 04:22:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:10,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 101 [2024-11-14 04:22:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:10,499 INFO L225 Difference]: With dead ends: 179 [2024-11-14 04:22:10,500 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 04:22:10,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 04:22:10,501 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:10,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:22:10,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 04:22:10,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 04:22:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.275) internal successors, (102), 80 states have internal predecessors, (102), 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 04:22:10,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 120 transitions. [2024-11-14 04:22:10,508 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 120 transitions. Word has length 101 [2024-11-14 04:22:10,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:10,508 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 120 transitions. [2024-11-14 04:22:10,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:22:10,509 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 120 transitions. [2024-11-14 04:22:10,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:22:10,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:10,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:10,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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)] Forceful destruction successful, exit code 0 [2024-11-14 04:22:10,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:10,711 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:10,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:10,711 INFO L85 PathProgramCache]: Analyzing trace with hash -89482602, now seen corresponding path program 1 times [2024-11-14 04:22:10,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:10,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545136650] [2024-11-14 04:22:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:10,712 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 04:22:10,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:10,714 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:10,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:11,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:22:11,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:11,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-14 04:22:11,349 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 04:22:11,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:22:11,350 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:22:11,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545136650] [2024-11-14 04:22:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545136650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:22:11,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:22:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:22:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709399941] [2024-11-14 04:22:11,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:22:11,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:22:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:22:11,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:22:11,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:22:11,352 INFO L87 Difference]: Start difference. First operand 91 states and 120 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:22:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:22:11,387 INFO L93 Difference]: Finished difference Result 179 states and 237 transitions. [2024-11-14 04:22:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:22:11,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 101 [2024-11-14 04:22:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:22:11,390 INFO L225 Difference]: With dead ends: 179 [2024-11-14 04:22:11,390 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 04:22:11,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 04:22:11,392 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:22:11,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:22:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 04:22:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 04:22:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.2625) internal successors, (101), 80 states have internal predecessors, (101), 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 04:22:11,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2024-11-14 04:22:11,401 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 101 [2024-11-14 04:22:11,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:22:11,401 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2024-11-14 04:22:11,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:22:11,401 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2024-11-14 04:22:11,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:22:11,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:22:11,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:22:11,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-14 04:22:11,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:11,603 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:22:11,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:22:11,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1369346280, now seen corresponding path program 1 times [2024-11-14 04:22:11,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:22:11,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872009715] [2024-11-14 04:22:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:22:11,604 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 04:22:11,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:22:11,607 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:22:11,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 (14)] Waiting until timeout for monitored process [2024-11-14 04:22:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:22:13,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-14 04:22:13,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:22:13,902 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 04:22:14,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 04:22:15,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 04:22:15,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 04:22:15,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 04:22:15,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-14 04:22:16,416 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 49 treesize of output 43 [2024-11-14 04:22:46,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 51 [2024-11-14 04:23:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:23:06,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:23:25,460 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 04:23:25,460 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:23:25,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872009715] [2024-11-14 04:23:25,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872009715] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:23:25,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:23:25,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [23] total 33 [2024-11-14 04:23:25,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042537267] [2024-11-14 04:23:25,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:23:25,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:23:25,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:23:25,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:23:25,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=936, Unknown=2, NotChecked=0, Total=1056 [2024-11-14 04:23:25,464 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 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 04:23:37,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:23:37,938 INFO L93 Difference]: Finished difference Result 221 states and 287 transitions. [2024-11-14 04:23:37,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:23:37,944 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 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 101 [2024-11-14 04:23:37,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:23:37,945 INFO L225 Difference]: With dead ends: 221 [2024-11-14 04:23:37,946 INFO L226 Difference]: Without dead ends: 133 [2024-11-14 04:23:37,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 63.3s TimeCoverageRelationStatistics Valid=201, Invalid=1519, Unknown=2, NotChecked=0, Total=1722 [2024-11-14 04:23:37,949 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 108 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:23:37,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 742 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-14 04:23:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-14 04:23:37,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 102. [2024-11-14 04:23:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 91 states have internal predecessors, (113), 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 04:23:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 131 transitions. [2024-11-14 04:23:37,959 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 131 transitions. Word has length 101 [2024-11-14 04:23:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:23:37,960 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 131 transitions. [2024-11-14 04:23:37,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 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 04:23:37,960 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 131 transitions. [2024-11-14 04:23:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:23:37,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:37,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:23:37,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 (14)] Ended with exit code 0 [2024-11-14 04:23:38,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:23:38,162 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:38,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:38,162 INFO L85 PathProgramCache]: Analyzing trace with hash -668281702, now seen corresponding path program 1 times [2024-11-14 04:23:38,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:23:38,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615044419] [2024-11-14 04:23:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:38,163 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 04:23:38,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:23:38,165 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:23:38,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 (15)] Waiting until timeout for monitored process [2024-11-14 04:23:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:38,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 04:23:38,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:23:41,146 INFO L349 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2024-11-14 04:23:41,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 52 [2024-11-14 04:23:43,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:23:43,071 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 139 treesize of output 87 [2024-11-14 04:23:44,446 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 04:23:44,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:23:44,446 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:23:44,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615044419] [2024-11-14 04:23:44,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615044419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:23:44,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:23:44,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-14 04:23:44,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10076568] [2024-11-14 04:23:44,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:23:44,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 04:23:44,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:23:44,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 04:23:44,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:23:44,448 INFO L87 Difference]: Start difference. First operand 102 states and 131 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 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 04:23:49,452 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 04:24:00,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:24:00,167 INFO L93 Difference]: Finished difference Result 246 states and 315 transitions. [2024-11-14 04:24:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:24:00,168 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 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 101 [2024-11-14 04:24:00,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:24:00,170 INFO L225 Difference]: With dead ends: 246 [2024-11-14 04:24:00,170 INFO L226 Difference]: Without dead ends: 142 [2024-11-14 04:24:00,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:24:00,171 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 53 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:24:00,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 722 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2024-11-14 04:24:00,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-14 04:24:00,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 111. [2024-11-14 04:24:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.23) internal successors, (123), 100 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 04:24:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 141 transitions. [2024-11-14 04:24:00,180 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 141 transitions. Word has length 101 [2024-11-14 04:24:00,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:24:00,180 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 141 transitions. [2024-11-14 04:24:00,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 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 04:24:00,181 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 141 transitions. [2024-11-14 04:24:00,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:24:00,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:00,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:24:00,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 (15)] Ended with exit code 0 [2024-11-14 04:24:00,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:00,383 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:00,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1241182513, now seen corresponding path program 1 times [2024-11-14 04:24:00,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:24:00,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796191542] [2024-11-14 04:24:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:00,384 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 04:24:00,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:24:00,386 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:00,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:24:01,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 04:24:01,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:24:02,768 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 04:24:03,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 42 [2024-11-14 04:24:05,454 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 04:24:05,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:24:05,454 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:24:05,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796191542] [2024-11-14 04:24:05,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796191542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:24:05,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:24:05,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-14 04:24:05,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826561674] [2024-11-14 04:24:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:24:05,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:24:05,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:24:05,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:24:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:24:05,456 INFO L87 Difference]: Start difference. First operand 111 states and 141 transitions. Second operand has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 14 states have internal predecessors, (59), 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 04:24:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:24:12,509 INFO L93 Difference]: Finished difference Result 221 states and 282 transitions. [2024-11-14 04:24:12,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:24:12,510 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 14 states have internal predecessors, (59), 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 101 [2024-11-14 04:24:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:24:12,512 INFO L225 Difference]: With dead ends: 221 [2024-11-14 04:24:12,512 INFO L226 Difference]: Without dead ends: 107 [2024-11-14 04:24:12,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-14 04:24:12,513 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 68 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:24:12,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 392 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-14 04:24:12,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-14 04:24:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-14 04:24:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 94 states have internal predecessors, (116), 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 04:24:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-11-14 04:24:12,522 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 101 [2024-11-14 04:24:12,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:24:12,522 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-14 04:24:12,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 14 states have internal predecessors, (59), 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 04:24:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2024-11-14 04:24:12,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:24:12,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:12,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:24:12,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:12,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:12,725 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:12,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1901566395, now seen corresponding path program 1 times [2024-11-14 04:24:12,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:24:12,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960295114] [2024-11-14 04:24:12,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:12,726 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 04:24:12,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:24:12,728 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:12,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:24:13,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:24:13,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:24:13,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-14 04:24:13,335 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 04:24:13,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:24:13,335 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:24:13,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960295114] [2024-11-14 04:24:13,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960295114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:24:13,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:24:13,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:24:13,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731798180] [2024-11-14 04:24:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:24:13,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:24:13,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:24:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:24:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:24:13,337 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:24:13,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:24:13,935 INFO L93 Difference]: Finished difference Result 207 states and 265 transitions. [2024-11-14 04:24:13,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:24:13,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 101 [2024-11-14 04:24:13,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:24:13,938 INFO L225 Difference]: With dead ends: 207 [2024-11-14 04:24:13,938 INFO L226 Difference]: Without dead ends: 105 [2024-11-14 04:24:13,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:24:13,939 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:24:13,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:24:13,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-14 04:24:13,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-14 04:24:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 94 states have internal predecessors, (115), 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 04:24:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2024-11-14 04:24:13,948 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 101 [2024-11-14 04:24:13,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:24:13,948 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2024-11-14 04:24:13,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 04:24:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2024-11-14 04:24:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:24:13,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:13,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:24:13,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:14,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:14,151 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:14,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1839526781, now seen corresponding path program 1 times [2024-11-14 04:24:14,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:24:14,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835362991] [2024-11-14 04:24:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:14,152 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 04:24:14,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:24:14,155 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:14,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-14 04:24:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:24:14,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 04:24:14,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:24:23,457 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-14 04:24:23,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:24:23,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 76 [2024-11-14 04:24:39,454 WARN L286 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 47 DAG size of output: 24 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:24:40,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:24:40,379 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 86 treesize of output 52 [2024-11-14 04:24:41,356 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 04:24:41,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:24:41,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:24:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835362991] [2024-11-14 04:24:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835362991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:24:41,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:24:41,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-14 04:24:41,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856719456] [2024-11-14 04:24:41,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:24:41,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 04:24:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:24:41,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 04:24:41,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:24:41,359 INFO L87 Difference]: Start difference. First operand 105 states and 133 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 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 04:24:48,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:24:48,215 INFO L93 Difference]: Finished difference Result 238 states and 303 transitions. [2024-11-14 04:24:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:24:48,217 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 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 101 [2024-11-14 04:24:48,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:24:48,218 INFO L225 Difference]: With dead ends: 238 [2024-11-14 04:24:48,218 INFO L226 Difference]: Without dead ends: 131 [2024-11-14 04:24:48,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:24:48,219 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 55 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:24:48,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 751 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-14 04:24:48,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-14 04:24:48,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2024-11-14 04:24:48,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 89 states have internal predecessors, (109), 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 04:24:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 127 transitions. [2024-11-14 04:24:48,228 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 127 transitions. Word has length 101 [2024-11-14 04:24:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:24:48,228 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 127 transitions. [2024-11-14 04:24:48,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 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 04:24:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2024-11-14 04:24:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:24:48,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:24:48,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:24:48,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-14 04:24:48,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:48,431 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:24:48,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:24:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1882539704, now seen corresponding path program 1 times [2024-11-14 04:24:48,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:24:48,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115188172] [2024-11-14 04:24:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:48,431 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 04:24:48,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:24:48,433 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/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 04:24:48,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53bca053-6533-49f2-b7d4-4456863b3c80/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process