./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ --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 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:19:04,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:19:04,282 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:19:04,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:19:04,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:19:04,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:19:04,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:19:04,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:19:04,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:19:04,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:19:04,344 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:19:04,345 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:19:04,346 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:19:04,347 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:19:04,348 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:19:04,348 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:19:04,349 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:19:04,349 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:19:04,350 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:19:04,350 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:19:04,351 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:19:04,352 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:19:04,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:19:04,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:19:04,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:19:04,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:19:04,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:19:04,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:19:04,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:19:04,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:19:04,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:19:04,358 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:19:04,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:19:04,359 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:19:04,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:19:04,359 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:19:04,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:04,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:19:04,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:19:04,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:19:04,361 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:19:04,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:19:04,366 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:19:04,366 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:19:04,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:19:04,367 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 [2023-11-19 05:19:04,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:19:04,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:19:04,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:19:04,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:19:04,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:19:04,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-19 05:19:08,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:19:08,595 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:19:08,596 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-19 05:19:08,611 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data/27af6ecd8/8a7b27f868d14f288d60273491f9aa25/FLAGc85bbc057 [2023-11-19 05:19:08,629 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data/27af6ecd8/8a7b27f868d14f288d60273491f9aa25 [2023-11-19 05:19:08,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:19:08,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:19:08,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:08,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:19:08,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:19:08,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:08" (1/1) ... [2023-11-19 05:19:08,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c63369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:08, skipping insertion in model container [2023-11-19 05:19:08,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:08" (1/1) ... [2023-11-19 05:19:08,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:19:08,873 WARN L240 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_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-19 05:19:08,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:08,944 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:19:08,959 WARN L240 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_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-19 05:19:09,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:09,038 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:19:09,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09 WrapperNode [2023-11-19 05:19:09,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:09,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:09,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:19:09,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:19:09,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,130 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 391 [2023-11-19 05:19:09,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:09,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:19:09,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:19:09,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:19:09,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:19:09,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:19:09,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:19:09,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:19:09,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (1/1) ... [2023-11-19 05:19:09,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:09,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:19:09,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:19:09,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:19:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:19:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 05:19:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:19:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 05:19:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:19:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 05:19:09,347 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:19:09,348 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:19:09,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:19:09,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:19:09,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:19:09,542 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:19:09,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:19:10,190 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:19:11,519 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:19:11,519 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:19:11,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:11 BoogieIcfgContainer [2023-11-19 05:19:11,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:19:11,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:19:11,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:19:11,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:19:11,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:19:08" (1/3) ... [2023-11-19 05:19:11,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bedabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:11, skipping insertion in model container [2023-11-19 05:19:11,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:09" (2/3) ... [2023-11-19 05:19:11,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bedabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:11, skipping insertion in model container [2023-11-19 05:19:11,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:11" (3/3) ... [2023-11-19 05:19:11,547 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-47.i [2023-11-19 05:19:11,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:19:11,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:19:11,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:19:11,677 INFO L357 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, mHoare=true, 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;@38975400, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:19:11,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:19:11,684 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) [2023-11-19 05:19:11,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 05:19:11,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:11,697 INFO L195 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] [2023-11-19 05:19:11,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:11,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:11,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1329880886, now seen corresponding path program 1 times [2023-11-19 05:19:11,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:11,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785866881] [2023-11-19 05:19:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:11,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:19:12,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:19:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:19:13,621 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:19:13,624 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:19:13,626 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:19:13,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:19:13,636 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:19:13,655 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:19:13,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-19 05:19:13,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-19 05:19:13,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 05:19:13,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 05:19:13,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-19 05:19:13,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 05:19:13,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-19 05:19:13,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-19 05:19:13,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 05:19:13,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-19 05:19:13,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 05:19:13,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-19 05:19:13,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-19 05:19:13,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 05:19:13,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-19 05:19:13,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-19 05:19:13,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 05:19:13,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 05:19:13,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-19 05:19:13,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-19 05:19:13,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 05:19:13,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 05:19:13,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-19 05:19:13,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-19 05:19:13,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-19 05:19:13,726 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-19 05:19:13,726 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 05:19:13,727 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 05:19:13,727 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-19 05:19:13,728 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-19 05:19:13,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:19:13 BoogieIcfgContainer [2023-11-19 05:19:13,759 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:19:13,762 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:19:13,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:19:13,764 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:19:13,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:11" (3/4) ... [2023-11-19 05:19:13,770 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:19:13,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:19:13,772 INFO L158 Benchmark]: Toolchain (without parser) took 5138.41ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 111.7MB in the beginning and 133.1MB in the end (delta: -21.4MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2023-11-19 05:19:13,773 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:19:13,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.26ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 97.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:19:13,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.62ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 94.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:19:13,776 INFO L158 Benchmark]: Boogie Preprocessor took 65.76ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:19:13,777 INFO L158 Benchmark]: RCFGBuilder took 2328.99ms. Allocated memory was 142.6MB in the beginning and 178.3MB in the end (delta: 35.7MB). Free memory was 90.8MB in the beginning and 110.8MB in the end (delta: -20.1MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2023-11-19 05:19:13,778 INFO L158 Benchmark]: TraceAbstraction took 2226.28ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 109.8MB in the beginning and 133.1MB in the end (delta: -23.3MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2023-11-19 05:19:13,778 INFO L158 Benchmark]: Witness Printer took 8.77ms. Allocated memory is still 218.1MB. Free memory was 133.1MB in the beginning and 133.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:19:13,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.26ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 97.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.62ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 94.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.76ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2328.99ms. Allocated memory was 142.6MB in the beginning and 178.3MB in the end (delta: 35.7MB). Free memory was 90.8MB in the beginning and 110.8MB in the end (delta: -20.1MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2226.28ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 109.8MB in the beginning and 133.1MB in the end (delta: -23.3MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Witness Printer took 8.77ms. Allocated memory is still 218.1MB. Free memory was 133.1MB in the beginning and 133.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 someBinaryDOUBLEComparisonOperation at line 65, overapproximation of someUnaryDOUBLEoperation at line 67. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L45] signed long int last_1_WrapperStruct0_var_1_12 = 8; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L92] EXPR WrapperStruct0.var_1_12 [L92] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L76] WrapperStruct0.var_1_8 = __VERIFIER_nondet_double() [L77] EXPR WrapperStruct0.var_1_8 [L77] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L77] EXPR WrapperStruct0.var_1_8 [L77] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L77] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L77] CALL assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L78] WrapperStruct0.var_1_10 = __VERIFIER_nondet_char() [L79] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L79] CALL assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L80] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L80] CALL assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L81] WrapperStruct0.var_1_11 = __VERIFIER_nondet_char() [L82] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L82] CALL assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L83] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L83] CALL assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L84] WrapperStruct0.var_1_13 = __VERIFIER_nondet_uchar() [L85] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L85] CALL assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] CALL assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L87] WrapperStruct0.var_1_14 = __VERIFIER_nondet_uchar() [L88] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L88] CALL assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] CALL assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L103] RET updateVariables() [L104] CALL step() [L49] COND FALSE !(-4 > last_1_WrapperStruct0_var_1_12) [L54] EXPR WrapperStruct0.var_1_10 [L54] WrapperStruct0.var_1_9 = WrapperStruct0.var_1_10 [L56] EXPR WrapperStruct0.var_1_13 [L56] unsigned char stepLocal_0 = ! WrapperStruct0.var_1_13; [L57] stepLocal_0 || WrapperStruct0.var_1_14 [L57] EXPR WrapperStruct0.var_1_14 [L57] stepLocal_0 || WrapperStruct0.var_1_14 [L57] COND TRUE stepLocal_0 || WrapperStruct0.var_1_14 [L58] EXPR WrapperStruct0.var_1_14 [L58] COND FALSE !(! WrapperStruct0.var_1_14) [L61] EXPR WrapperStruct0.var_1_9 [L61] WrapperStruct0.var_1_12 = WrapperStruct0.var_1_9 [L64] EXPR WrapperStruct0.var_1_8 [L64] WrapperStruct0.var_1_15 = WrapperStruct0.var_1_8 [L65] EXPR WrapperStruct0.var_1_15 [L65] EXPR WrapperStruct0.var_1_15 [L65] COND FALSE !(WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) [L70] EXPR WrapperStruct0.var_1_12 [L70] EXPR WrapperStruct0.var_1_9 [L70] COND FALSE !(WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR WrapperStruct0.var_1_15 [L95] EXPR WrapperStruct0.var_1_15 [L95] EXPR (WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1) [L95] EXPR WrapperStruct0.var_1_12 [L95] EXPR WrapperStruct0.var_1_12 [L95] EXPR WrapperStruct0.var_1_12 [L95] EXPR WrapperStruct0.var_1_9 [L95] EXPR ((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1 [L95] EXPR WrapperStruct0.var_1_1 [L95] EXPR WrapperStruct0.var_1_8 [L95] EXPR ((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8) [L95] EXPR WrapperStruct0.var_1_8 [L95] EXPR ((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8) [L95] EXPR ((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1 [L95] EXPR (WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1) [L95] EXPR ((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10))) [L95] EXPR (((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10)))) && (((! WrapperStruct0.var_1_13) || WrapperStruct0.var_1_14) ? ((! WrapperStruct0.var_1_14) ? (WrapperStruct0.var_1_12 == ((signed long int) (((((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) < 0 ) ? -((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) : ((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))))))) : (WrapperStruct0.var_1_12 == ((signed long int) WrapperStruct0.var_1_9))) : 1) [L95] EXPR ((((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10)))) && (((! WrapperStruct0.var_1_13) || WrapperStruct0.var_1_14) ? ((! WrapperStruct0.var_1_14) ? (WrapperStruct0.var_1_12 == ((signed long int) (((((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) < 0 ) ? -((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) : ((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))))))) : (WrapperStruct0.var_1_12 == ((signed long int) WrapperStruct0.var_1_9))) : 1)) && (WrapperStruct0.var_1_15 == ((double) WrapperStruct0.var_1_8)) [L95-L96] return ((((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10)))) && (((! WrapperStruct0.var_1_13) || WrapperStruct0.var_1_14) ? ((! WrapperStruct0.var_1_14) ? (WrapperStruct0.var_1_12 == ((signed long int) (((((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) < 0 ) ? -((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) : ((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))))))) : (WrapperStruct0.var_1_12 == ((signed long int) WrapperStruct0.var_1_9))) : 1)) && (WrapperStruct0.var_1_15 == ((double) WrapperStruct0.var_1_8)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L19] reach_error() VAL [WrapperStruct0={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_12=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 1, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:19:13,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ --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 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:19:16,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:19:16,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:19:16,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:19:16,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:19:16,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:19:16,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:19:16,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:19:16,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:19:17,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:19:17,003 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:19:17,003 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:19:17,004 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:19:17,005 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:19:17,006 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:19:17,006 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:19:17,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:19:17,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:19:17,009 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:19:17,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:19:17,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:19:17,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:19:17,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:19:17,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:19:17,012 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:19:17,013 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:19:17,013 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:19:17,014 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:19:17,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:19:17,015 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:19:17,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:19:17,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:19:17,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:19:17,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:17,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:19:17,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:19:17,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:19:17,019 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:19:17,019 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:19:17,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:19:17,021 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:19:17,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:19:17,021 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 [2023-11-19 05:19:17,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:19:17,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:19:17,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:19:17,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:19:17,530 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:19:17,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-19 05:19:20,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:19:21,130 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:19:21,132 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-19 05:19:21,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data/37a8e910a/4159fdce9622474c876d9d2fd44dfeb0/FLAGceb46eacd [2023-11-19 05:19:21,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/data/37a8e910a/4159fdce9622474c876d9d2fd44dfeb0 [2023-11-19 05:19:21,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:19:21,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:19:21,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:21,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:19:21,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:19:21,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e00a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21, skipping insertion in model container [2023-11-19 05:19:21,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,207 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:19:21,421 WARN L240 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_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-19 05:19:21,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:21,546 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:19:21,568 WARN L240 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_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-19 05:19:21,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:21,702 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:19:21,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21 WrapperNode [2023-11-19 05:19:21,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:21,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:21,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:19:21,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:19:21,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,847 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 389 [2023-11-19 05:19:21,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:21,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:19:21,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:19:21,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:19:21,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:21,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:19:21,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:19:21,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:19:21,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:19:21,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (1/1) ... [2023-11-19 05:19:22,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:22,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:19:22,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:19:22,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:19:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:19:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-19 05:19:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-19 05:19:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:19:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:19:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:19:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-19 05:19:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:19:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:19:22,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:19:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:19:22,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:19:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 05:19:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:19:22,286 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:19:22,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:19:23,167 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:19:23,177 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:19:23,184 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:19:23,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:23 BoogieIcfgContainer [2023-11-19 05:19:23,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:19:23,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:19:23,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:19:23,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:19:23,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:19:21" (1/3) ... [2023-11-19 05:19:23,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751901e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:23, skipping insertion in model container [2023-11-19 05:19:23,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:21" (2/3) ... [2023-11-19 05:19:23,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751901e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:23, skipping insertion in model container [2023-11-19 05:19:23,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:23" (3/3) ... [2023-11-19 05:19:23,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-47.i [2023-11-19 05:19:23,232 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:19:23,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:19:23,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:19:23,303 INFO L357 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, mHoare=true, 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;@218a67a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:19:23,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:19:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:19:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:19:23,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:23,325 INFO L195 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] [2023-11-19 05:19:23,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:23,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:23,332 INFO L85 PathProgramCache]: Analyzing trace with hash -995670548, now seen corresponding path program 1 times [2023-11-19 05:19:23,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:23,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288417725] [2023-11-19 05:19:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:23,352 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 [2023-11-19 05:19:23,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:23,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:23,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:23,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:19:23,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:23,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:23,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:23,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288417725] [2023-11-19 05:19:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288417725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:23,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:19:23,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238286086] [2023-11-19 05:19:23,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:23,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:19:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:19:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:19:23,866 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:24,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:24,030 INFO L93 Difference]: Finished difference Result 211 states and 324 transitions. [2023-11-19 05:19:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:19:24,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-19 05:19:24,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:24,045 INFO L225 Difference]: With dead ends: 211 [2023-11-19 05:19:24,045 INFO L226 Difference]: Without dead ends: 118 [2023-11-19 05:19:24,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:19:24,054 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 90 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:24,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 554 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:19:24,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-19 05:19:24,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 95. [2023-11-19 05:19:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 84 states have internal predecessors, (119), 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) [2023-11-19 05:19:24,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2023-11-19 05:19:24,118 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 84 [2023-11-19 05:19:24,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:24,120 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions. [2023-11-19 05:19:24,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions. [2023-11-19 05:19:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:19:24,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:24,127 INFO L195 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] [2023-11-19 05:19:24,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:24,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:24,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:24,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash 515734622, now seen corresponding path program 1 times [2023-11-19 05:19:24,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:24,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092084145] [2023-11-19 05:19:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:24,341 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 [2023-11-19 05:19:24,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:24,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:24,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:24,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:19:24,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:24,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:24,724 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:24,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092084145] [2023-11-19 05:19:24,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092084145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:24,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:24,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:19:24,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18159125] [2023-11-19 05:19:24,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:24,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:19:24,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:19:24,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:19:24,732 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:24,870 INFO L93 Difference]: Finished difference Result 196 states and 283 transitions. [2023-11-19 05:19:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:19:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-19 05:19:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:24,883 INFO L225 Difference]: With dead ends: 196 [2023-11-19 05:19:24,884 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 05:19:24,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:19:24,889 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 10 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:24,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 505 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:19:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 05:19:24,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 99. [2023-11-19 05:19:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 88 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) [2023-11-19 05:19:24,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2023-11-19 05:19:24,915 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 84 [2023-11-19 05:19:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:24,919 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2023-11-19 05:19:24,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2023-11-19 05:19:24,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:19:24,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:24,932 INFO L195 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] [2023-11-19 05:19:24,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:25,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:25,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:25,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:25,141 INFO L85 PathProgramCache]: Analyzing trace with hash 517581664, now seen corresponding path program 1 times [2023-11-19 05:19:25,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:25,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177903090] [2023-11-19 05:19:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:25,142 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 [2023-11-19 05:19:25,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:25,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:25,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:25,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:19:25,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:25,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:25,587 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 38 treesize of output 14 [2023-11-19 05:19:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:25,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:25,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:25,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177903090] [2023-11-19 05:19:25,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177903090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:25,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:25,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:19:25,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666245198] [2023-11-19 05:19:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:25,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:19:25,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:25,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:19:25,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:19:25,666 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:27,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:27,556 INFO L93 Difference]: Finished difference Result 350 states and 502 transitions. [2023-11-19 05:19:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:19:27,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-19 05:19:27,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:27,560 INFO L225 Difference]: With dead ends: 350 [2023-11-19 05:19:27,560 INFO L226 Difference]: Without dead ends: 254 [2023-11-19 05:19:27,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:19:27,563 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 201 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:27,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 356 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 05:19:27,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-19 05:19:27,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 183. [2023-11-19 05:19:27,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 162 states have (on average 1.382716049382716) internal successors, (224), 162 states have internal predecessors, (224), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 05:19:27,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 260 transitions. [2023-11-19 05:19:27,596 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 260 transitions. Word has length 84 [2023-11-19 05:19:27,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:27,597 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 260 transitions. [2023-11-19 05:19:27,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:27,598 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 260 transitions. [2023-11-19 05:19:27,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:19:27,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:27,600 INFO L195 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] [2023-11-19 05:19:27,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:27,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:27,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:27,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash 775747102, now seen corresponding path program 1 times [2023-11-19 05:19:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:27,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078567416] [2023-11-19 05:19:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:27,811 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 [2023-11-19 05:19:27,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:27,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:27,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:28,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:19:28,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:28,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:28,136 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:28,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078567416] [2023-11-19 05:19:28,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078567416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:28,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:28,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:19:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630573078] [2023-11-19 05:19:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:28,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:19:28,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:28,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:19:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:19:28,140 INFO L87 Difference]: Start difference. First operand 183 states and 260 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:28,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:28,230 INFO L93 Difference]: Finished difference Result 418 states and 598 transitions. [2023-11-19 05:19:28,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:19:28,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-19 05:19:28,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:28,234 INFO L225 Difference]: With dead ends: 418 [2023-11-19 05:19:28,235 INFO L226 Difference]: Without dead ends: 238 [2023-11-19 05:19:28,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:19:28,238 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 81 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:28,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 565 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:19:28,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-19 05:19:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 184. [2023-11-19 05:19:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 05:19:28,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 261 transitions. [2023-11-19 05:19:28,261 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 261 transitions. Word has length 84 [2023-11-19 05:19:28,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:28,261 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 261 transitions. [2023-11-19 05:19:28,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 261 transitions. [2023-11-19 05:19:28,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:19:28,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:28,264 INFO L195 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] [2023-11-19 05:19:28,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 05:19:28,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:28,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:28,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:28,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1797445342, now seen corresponding path program 1 times [2023-11-19 05:19:28,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:28,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981549541] [2023-11-19 05:19:28,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:28,473 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 [2023-11-19 05:19:28,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:28,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:28,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:28,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 05:19:28,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:28,975 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 [2023-11-19 05:19:29,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:29,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 69 [2023-11-19 05:19:29,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:29,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 72 [2023-11-19 05:19:30,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:30,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 72 [2023-11-19 05:19:30,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:30,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 82 [2023-11-19 05:19:31,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:31,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 85 [2023-11-19 05:19:31,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 126 [2023-11-19 05:19:31,923 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 05:19:31,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:31,924 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:31,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981549541] [2023-11-19 05:19:31,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981549541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:31,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:31,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 05:19:31,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393640449] [2023-11-19 05:19:31,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:31,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 05:19:31,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:31,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 05:19:31,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:19:31,932 INFO L87 Difference]: Start difference. First operand 184 states and 261 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-19 05:19:35,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:35,594 INFO L93 Difference]: Finished difference Result 562 states and 788 transitions. [2023-11-19 05:19:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 05:19:35,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2023-11-19 05:19:35,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:35,599 INFO L225 Difference]: With dead ends: 562 [2023-11-19 05:19:35,600 INFO L226 Difference]: Without dead ends: 381 [2023-11-19 05:19:35,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:19:35,602 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 411 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:35,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 412 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-19 05:19:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-19 05:19:35,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 274. [2023-11-19 05:19:35,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 229 states have (on average 1.3406113537117903) internal successors, (307), 229 states have internal predecessors, (307), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 05:19:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 379 transitions. [2023-11-19 05:19:35,644 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 379 transitions. Word has length 84 [2023-11-19 05:19:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:35,645 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 379 transitions. [2023-11-19 05:19:35,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-19 05:19:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 379 transitions. [2023-11-19 05:19:35,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:19:35,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:35,647 INFO L195 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] [2023-11-19 05:19:35,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 05:19:35,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:35,858 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:35,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:35,859 INFO L85 PathProgramCache]: Analyzing trace with hash 410147143, now seen corresponding path program 1 times [2023-11-19 05:19:35,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:35,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016476038] [2023-11-19 05:19:35,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:35,860 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 [2023-11-19 05:19:35,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:35,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:35,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:36,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:19:36,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:36,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:36,317 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 154 treesize of output 46 [2023-11-19 05:19:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:36,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:36,490 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:36,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016476038] [2023-11-19 05:19:36,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016476038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:36,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:36,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:19:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341293190] [2023-11-19 05:19:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:36,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:19:36,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:36,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:19:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:19:36,493 INFO L87 Difference]: Start difference. First operand 274 states and 379 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:40,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:19:44,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:44,893 INFO L93 Difference]: Finished difference Result 799 states and 1106 transitions. [2023-11-19 05:19:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:19:44,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-19 05:19:44,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:44,900 INFO L225 Difference]: With dead ends: 799 [2023-11-19 05:19:44,900 INFO L226 Difference]: Without dead ends: 528 [2023-11-19 05:19:44,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:19:44,902 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:44,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 276 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 250 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2023-11-19 05:19:44,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-19 05:19:44,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 278. [2023-11-19 05:19:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 233 states have (on average 1.3347639484978542) internal successors, (311), 233 states have internal predecessors, (311), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 05:19:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 383 transitions. [2023-11-19 05:19:44,948 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 383 transitions. Word has length 84 [2023-11-19 05:19:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:44,949 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 383 transitions. [2023-11-19 05:19:44,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 383 transitions. [2023-11-19 05:19:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:19:44,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:44,952 INFO L195 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] [2023-11-19 05:19:44,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 05:19:45,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:45,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:45,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:45,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2037685088, now seen corresponding path program 1 times [2023-11-19 05:19:45,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:45,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809319345] [2023-11-19 05:19:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:45,161 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 [2023-11-19 05:19:45,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:45,163 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:45,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:45,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:19:45,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:45,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:45,468 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:45,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809319345] [2023-11-19 05:19:45,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809319345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:45,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:45,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:19:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022483333] [2023-11-19 05:19:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:45,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:19:45,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:19:45,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:19:45,472 INFO L87 Difference]: Start difference. First operand 278 states and 383 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:45,621 INFO L93 Difference]: Finished difference Result 561 states and 775 transitions. [2023-11-19 05:19:45,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:19:45,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2023-11-19 05:19:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:45,626 INFO L225 Difference]: With dead ends: 561 [2023-11-19 05:19:45,626 INFO L226 Difference]: Without dead ends: 286 [2023-11-19 05:19:45,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:19:45,633 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 7 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:45,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 396 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:19:45,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-19 05:19:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2023-11-19 05:19:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 233 states have (on average 1.3261802575107295) internal successors, (309), 233 states have internal predecessors, (309), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 05:19:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 381 transitions. [2023-11-19 05:19:45,707 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 381 transitions. Word has length 84 [2023-11-19 05:19:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:45,708 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 381 transitions. [2023-11-19 05:19:45,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 381 transitions. [2023-11-19 05:19:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:19:45,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:45,711 INFO L195 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] [2023-11-19 05:19:45,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:45,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:45,918 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:45,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1498797056, now seen corresponding path program 1 times [2023-11-19 05:19:45,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:45,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038833740] [2023-11-19 05:19:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:45,920 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 [2023-11-19 05:19:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:45,921 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:45,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:46,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 05:19:46,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:46,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 05:19:46,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2023-11-19 05:19:46,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2023-11-19 05:19:46,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2023-11-19 05:19:47,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:47,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2023-11-19 05:19:47,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:47,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 67 [2023-11-19 05:19:49,821 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:49,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 118 treesize of output 52 [2023-11-19 05:19:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 79 proven. 36 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-19 05:19:49,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:19:50,211 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:50,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:50,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038833740] [2023-11-19 05:19:50,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038833740] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:19:50,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:19:50,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 18 [2023-11-19 05:19:50,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330433265] [2023-11-19 05:19:50,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:50,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:19:50,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:50,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:19:50,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=254, Unknown=1, NotChecked=0, Total=306 [2023-11-19 05:19:50,214 INFO L87 Difference]: Start difference. First operand 278 states and 381 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:51,543 INFO L93 Difference]: Finished difference Result 762 states and 1047 transitions. [2023-11-19 05:19:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 05:19:51,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2023-11-19 05:19:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:51,549 INFO L225 Difference]: With dead ends: 762 [2023-11-19 05:19:51,550 INFO L226 Difference]: Without dead ends: 487 [2023-11-19 05:19:51,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=74, Invalid=387, Unknown=1, NotChecked=0, Total=462 [2023-11-19 05:19:51,552 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 208 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:51,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 406 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 05:19:51,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-19 05:19:51,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 441. [2023-11-19 05:19:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 392 states have (on average 1.3520408163265305) internal successors, (530), 394 states have internal predecessors, (530), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-19 05:19:51,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 606 transitions. [2023-11-19 05:19:51,615 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 606 transitions. Word has length 86 [2023-11-19 05:19:51,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:51,615 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 606 transitions. [2023-11-19 05:19:51,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:51,616 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 606 transitions. [2023-11-19 05:19:51,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:19:51,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:51,618 INFO L195 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] [2023-11-19 05:19:51,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 05:19:51,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:51,826 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:51,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:51,827 INFO L85 PathProgramCache]: Analyzing trace with hash -736850022, now seen corresponding path program 1 times [2023-11-19 05:19:51,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:51,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589548028] [2023-11-19 05:19:51,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:51,828 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 [2023-11-19 05:19:51,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:51,830 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:51,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:52,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:19:52,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:52,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:19:52,199 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 66 treesize of output 24 [2023-11-19 05:19:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:19:52,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:52,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:52,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589548028] [2023-11-19 05:19:52,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589548028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:52,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:52,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:19:52,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745133487] [2023-11-19 05:19:52,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:52,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:19:52,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:52,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:19:52,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:19:52,282 INFO L87 Difference]: Start difference. First operand 441 states and 606 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:54,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:54,415 INFO L93 Difference]: Finished difference Result 1296 states and 1782 transitions. [2023-11-19 05:19:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:19:54,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2023-11-19 05:19:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:54,425 INFO L225 Difference]: With dead ends: 1296 [2023-11-19 05:19:54,425 INFO L226 Difference]: Without dead ends: 858 [2023-11-19 05:19:54,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:19:54,427 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 187 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:54,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 355 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 05:19:54,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-19 05:19:54,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 782. [2023-11-19 05:19:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 685 states have (on average 1.3284671532846715) internal successors, (910), 689 states have internal predecessors, (910), 76 states have call successors, (76), 20 states have call predecessors, (76), 20 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-19 05:19:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1062 transitions. [2023-11-19 05:19:54,534 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1062 transitions. Word has length 86 [2023-11-19 05:19:54,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:54,535 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1062 transitions. [2023-11-19 05:19:54,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:19:54,535 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1062 transitions. [2023-11-19 05:19:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:19:54,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:54,538 INFO L195 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] [2023-11-19 05:19:54,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 05:19:54,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:54,745 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:54,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:54,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1689532446, now seen corresponding path program 1 times [2023-11-19 05:19:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:54,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109245812] [2023-11-19 05:19:54,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:54,747 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 [2023-11-19 05:19:54,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:54,748 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:54,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:54,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:19:54,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 05:19:55,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:19:55,033 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:19:55,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109245812] [2023-11-19 05:19:55,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109245812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:55,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:55,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:19:55,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121038577] [2023-11-19 05:19:55,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:55,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:19:55,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:19:55,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:19:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:19:55,036 INFO L87 Difference]: Start difference. First operand 782 states and 1062 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:19:55,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:55,327 INFO L93 Difference]: Finished difference Result 1601 states and 2169 transitions. [2023-11-19 05:19:55,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:19:55,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2023-11-19 05:19:55,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:55,335 INFO L225 Difference]: With dead ends: 1601 [2023-11-19 05:19:55,335 INFO L226 Difference]: Without dead ends: 806 [2023-11-19 05:19:55,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:19:55,338 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 6 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:55,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 582 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:19:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2023-11-19 05:19:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 782. [2023-11-19 05:19:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 685 states have (on average 1.3167883211678832) internal successors, (902), 689 states have internal predecessors, (902), 76 states have call successors, (76), 20 states have call predecessors, (76), 20 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-19 05:19:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1054 transitions. [2023-11-19 05:19:55,431 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1054 transitions. Word has length 86 [2023-11-19 05:19:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:55,431 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1054 transitions. [2023-11-19 05:19:55,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:19:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1054 transitions. [2023-11-19 05:19:55,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:19:55,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:55,435 INFO L195 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] [2023-11-19 05:19:55,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-19 05:19:55,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:19:55,643 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:55,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:55,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1766401188, now seen corresponding path program 1 times [2023-11-19 05:19:55,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:19:55,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661209872] [2023-11-19 05:19:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:55,645 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 [2023-11-19 05:19:55,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:19:55,647 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 05:19:55,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e40c6dd-93b9-401b-88a1-bc54f48b5b43/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:19:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:56,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 05:19:56,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:19:56,048 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