./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.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_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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_f8747335-cf14-45b0-b525-fedf31c9f653/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 48911f036e4c9fa9d9a65d0028aef976f5373407f72a9bbf7695ddc823019d88 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:02:40,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:02:40,936 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:02:40,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:02:40,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:02:40,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:02:40,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:02:40,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:02:40,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:02:40,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:02:40,995 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:02:40,996 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:02:40,996 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:02:40,998 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:02:40,999 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:02:40,999 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:02:41,000 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:02:41,000 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:02:41,001 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:02:41,001 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:02:41,002 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:02:41,003 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:02:41,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:02:41,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:02:41,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:02:41,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:02:41,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:02:41,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:02:41,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:02:41,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:02:41,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:02:41,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:02:41,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:02:41,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:02:41,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:02:41,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:02:41,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:41,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:02:41,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:02:41,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:02:41,012 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:02:41,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:02:41,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:02:41,014 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:02:41,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:02:41,015 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_f8747335-cf14-45b0-b525-fedf31c9f653/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48911f036e4c9fa9d9a65d0028aef976f5373407f72a9bbf7695ddc823019d88 [2023-11-19 05:02:41,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:02:41,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:02:41,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:02:41,331 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:02:41,331 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:02:41,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i [2023-11-19 05:02:44,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:02:44,670 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:02:44,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i [2023-11-19 05:02:44,692 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data/0601eb140/7d24a35103664756bfe90755cd1dac08/FLAG101edd43c [2023-11-19 05:02:44,709 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data/0601eb140/7d24a35103664756bfe90755cd1dac08 [2023-11-19 05:02:44,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:02:44,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:02:44,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:44,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:02:44,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:02:44,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:44" (1/1) ... [2023-11-19 05:02:44,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f286ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:44, skipping insertion in model container [2023-11-19 05:02:44,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:44" (1/1) ... [2023-11-19 05:02:44,786 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:02:44,934 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_f8747335-cf14-45b0-b525-fedf31c9f653/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i[918,931] [2023-11-19 05:02:45,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:45,040 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:02:45,053 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_f8747335-cf14-45b0-b525-fedf31c9f653/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i[918,931] [2023-11-19 05:02:45,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:45,116 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:02:45,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45 WrapperNode [2023-11-19 05:02:45,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:45,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:45,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:02:45,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:02:45,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,201 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 219 [2023-11-19 05:02:45,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:45,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:02:45,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:02:45,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:02:45,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:02:45,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:02:45,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:02:45,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:02:45,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (1/1) ... [2023-11-19 05:02:45,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:45,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:02:45,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:02:45,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:02:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:02:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:02:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:02:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:02:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:02:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:02:45,451 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:02:45,453 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:02:45,981 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:02:46,425 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:02:46,434 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:02:46,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:46 BoogieIcfgContainer [2023-11-19 05:02:46,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:02:46,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:02:46,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:02:46,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:02:46,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:02:44" (1/3) ... [2023-11-19 05:02:46,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470aee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:46, skipping insertion in model container [2023-11-19 05:02:46,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:45" (2/3) ... [2023-11-19 05:02:46,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470aee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:46, skipping insertion in model container [2023-11-19 05:02:46,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:46" (3/3) ... [2023-11-19 05:02:46,455 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i [2023-11-19 05:02:46,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:02:46,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:02:46,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:02:46,545 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;@4e5918ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:02:46,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:02:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 05:02:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 05:02:46,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:46,568 INFO L195 NwaCegarLoop]: trace histogram [31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:46,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:46,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:46,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1415667048, now seen corresponding path program 1 times [2023-11-19 05:02:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:02:46,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403297165] [2023-11-19 05:02:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:02:46,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:02:46,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030333007] [2023-11-19 05:02:46,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:46,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:02:46,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:02:46,845 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:02:46,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:02:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:02:47,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:02:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:02:47,395 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:02:47,398 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:02:47,399 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:02:47,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 05:02:47,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:02:47,615 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:02:47,619 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:02:47,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:02:47 BoogieIcfgContainer [2023-11-19 05:02:47,761 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:02:47,765 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:02:47,765 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:02:47,765 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:02:47,766 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:46" (3/4) ... [2023-11-19 05:02:47,768 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:02:47,770 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:02:47,771 INFO L158 Benchmark]: Toolchain (without parser) took 3053.68ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 94.0MB in the end (delta: 58.2MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2023-11-19 05:02:47,772 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory was 92.8MB in the beginning and 92.6MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:02:47,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.61ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 136.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 05:02:47,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.19ms. Allocated memory is still 201.3MB. Free memory was 136.3MB in the beginning and 132.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:02:47,774 INFO L158 Benchmark]: Boogie Preprocessor took 69.80ms. Allocated memory is still 201.3MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:02:47,774 INFO L158 Benchmark]: RCFGBuilder took 1166.98ms. Allocated memory is still 201.3MB. Free memory was 130.0MB in the beginning and 151.6MB in the end (delta: -21.6MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2023-11-19 05:02:47,775 INFO L158 Benchmark]: TraceAbstraction took 1322.86ms. Allocated memory is still 201.3MB. Free memory was 151.6MB in the beginning and 95.0MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-19 05:02:47,776 INFO L158 Benchmark]: Witness Printer took 4.96ms. Allocated memory is still 201.3MB. Free memory was 95.0MB in the beginning and 94.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:02:47,779 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory was 92.8MB in the beginning and 92.6MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.61ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 136.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.19ms. Allocated memory is still 201.3MB. Free memory was 136.3MB in the beginning and 132.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.80ms. Allocated memory is still 201.3MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1166.98ms. Allocated memory is still 201.3MB. Free memory was 130.0MB in the beginning and 151.6MB in the end (delta: -21.6MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1322.86ms. Allocated memory is still 201.3MB. Free memory was 151.6MB in the beginning and 95.0MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 4.96ms. Allocated memory is still 201.3MB. Free memory was 95.0MB in the beginning and 94.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of bitwiseOr at line 57, overapproximation of shiftRight at line 60, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of someBinaryArithmeticFLOAToperation at line 106. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 64; [L23] double var_1_6 = 31.5; [L24] double var_1_9 = 1000000000.25; [L25] float var_1_10 = 1.1; [L26] float var_1_11 = 8.75; [L27] float var_1_12 = 63.8; [L28] unsigned char var_1_13 = 1; [L29] float var_1_14 = 127.5; [L30] signed char var_1_15 = -2; [L31] signed char var_1_16 = 1; [L32] signed char var_1_17 = 1; [L33] signed char var_1_18 = 1; [L34] signed char var_1_19 = -2; [L35] signed char var_1_20 = 16; [L36] signed char var_1_21 = 2; [L37] signed char var_1_22 = 8; [L38] unsigned char var_1_23 = 0; [L39] unsigned char var_1_24 = 0; [L40] unsigned char var_1_25 = 0; [L41] unsigned char var_1_26 = 0; [L42] unsigned char var_1_27 = 32; [L43] unsigned char var_1_28 = 1; [L44] unsigned long int var_1_33 = 10; [L45] unsigned long int var_1_35 = 2632045268; [L46] signed long int var_1_36 = 32; [L47] unsigned long int var_1_37 = 128; [L48] unsigned long int var_1_39 = 1877460848; [L49] unsigned long int var_1_40 = 1831388024; [L50] unsigned long int var_1_41 = 1967003719; [L51] unsigned char var_1_42 = 0; [L52] unsigned char var_1_46 = 0; [L53] unsigned short int var_1_49 = 0; [L192] isInitial = 1 [L193] FCALL initially() [L194] COND TRUE 1 [L195] FCALL updateLastVariables() [L196] CALL updateVariables() [L136] var_1_9 = __VERIFIER_nondet_double() [L137] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=35/4, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=11/10, var_1_11=35/4, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L138] var_1_11 = __VERIFIER_nondet_float() [L139] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L140] var_1_13 = __VERIFIER_nondet_uchar() [L141] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L142] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=255/2, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L143] var_1_14 = __VERIFIER_nondet_float() [L144] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=1, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L145] var_1_16 = __VERIFIER_nondet_char() [L146] CALL assume_abort_if_not(var_1_16 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_16 >= -1) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L147] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=1, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L148] var_1_17 = __VERIFIER_nondet_char() [L149] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L150] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-2, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L151] var_1_19 = __VERIFIER_nondet_char() [L152] CALL assume_abort_if_not(var_1_19 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_19 >= -63) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L153] CALL assume_abort_if_not(var_1_19 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_19 <= 63) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=16, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L154] var_1_20 = __VERIFIER_nondet_char() [L155] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L156] CALL assume_abort_if_not(var_1_20 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_20 <= 63) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=2, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L157] var_1_21 = __VERIFIER_nondet_char() [L158] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L159] CALL assume_abort_if_not(var_1_21 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_21 <= 63) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=8, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L160] var_1_22 = __VERIFIER_nondet_char() [L161] CALL assume_abort_if_not(var_1_22 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_22 >= -63) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L162] CALL assume_abort_if_not(var_1_22 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_22 <= 63) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=0, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L163] var_1_24 = __VERIFIER_nondet_uchar() [L164] CALL assume_abort_if_not(var_1_24 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_24 >= 1) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L165] CALL assume_abort_if_not(var_1_24 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_24 <= 1) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L166] var_1_25 = __VERIFIER_nondet_uchar() [L167] CALL assume_abort_if_not(var_1_25 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_25 >= 0) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L168] CALL assume_abort_if_not(var_1_25 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_25 <= 0) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=0, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L169] var_1_26 = __VERIFIER_nondet_uchar() [L170] CALL assume_abort_if_not(var_1_26 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_26 >= 1) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L171] CALL assume_abort_if_not(var_1_26 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_26 <= 1) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2632045268, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L172] var_1_35 = __VERIFIER_nondet_ulong() [L173] CALL assume_abort_if_not(var_1_35 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_35 >= 2147483647) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L174] CALL assume_abort_if_not(var_1_35 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_35 <= 4294967294) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=1877460848, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L175] var_1_39 = __VERIFIER_nondet_ulong() [L176] CALL assume_abort_if_not(var_1_39 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not(var_1_39 >= 1073741823) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L177] CALL assume_abort_if_not(var_1_39 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_39 <= 2147483647) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=1831388024, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L178] var_1_40 = __VERIFIER_nondet_ulong() [L179] CALL assume_abort_if_not(var_1_40 >= 1073741824) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L179] RET assume_abort_if_not(var_1_40 >= 1073741824) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L180] CALL assume_abort_if_not(var_1_40 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not(var_1_40 <= 2147483647) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1967003719, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L181] var_1_41 = __VERIFIER_nondet_ulong() [L182] CALL assume_abort_if_not(var_1_41 >= 1073741824) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1073741824, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L182] RET assume_abort_if_not(var_1_41 >= 1073741824) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1073741824, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L183] CALL assume_abort_if_not(var_1_41 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1073741824, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L20] COND FALSE !(!cond) [L183] RET assume_abort_if_not(var_1_41 <= 2147483647) VAL [isInitial=1, var_1_10=11/10, var_1_11=2, var_1_12=319/5, var_1_13=1, var_1_14=3, var_1_15=-2, var_1_16=126, var_1_17=126, var_1_18=1, var_1_19=-1, var_1_1=64, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=0, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=32, var_1_28=1, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=128, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1073741824, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L196] RET updateVariables() [L197] CALL step() [L57] EXPR var_1_27 | (var_1_21 + var_1_27) [L57] COND TRUE var_1_27 < (var_1_27 | (var_1_21 + var_1_27)) [L58] var_1_28 = 200 [L60] EXPR var_1_21 >> var_1_21 [L60] COND TRUE var_1_21 >= (var_1_21 >> var_1_21) [L61] COND FALSE !(var_1_23 || (var_1_17 < var_1_21)) [L65] COND TRUE var_1_27 > (var_1_20 / var_1_35) [L66] var_1_36 = ((((var_1_27) < 0 ) ? -(var_1_27) : (var_1_27))) [L68] COND TRUE 63.75f <= var_1_11 [L69] var_1_37 = ((var_1_39 + ((((var_1_40) > (var_1_41)) ? (var_1_40) : (var_1_41)))) - ((((var_1_21) < 0 ) ? -(var_1_21) : (var_1_21)))) [L71] COND FALSE !(var_1_41 < ((((var_1_27) < (var_1_27)) ? (var_1_27) : (var_1_27)))) [L74] var_1_42 = (var_1_25 || var_1_25) [L76] COND FALSE !(\read(var_1_25)) [L83] COND FALSE !((var_1_39 - ((((-50) < 0 ) ? -(-50) : (-50)))) < var_1_27) [L88] var_1_15 = (var_1_16 - var_1_17) [L89] var_1_27 = var_1_21 [L90] unsigned char stepLocal_1 = var_1_27; [L91] unsigned char stepLocal_0 = var_1_27; [L92] COND FALSE !((var_1_27 + var_1_27) <= stepLocal_1) [L95] COND FALSE !(stepLocal_0 >= (var_1_27 * var_1_27)) [L98] var_1_1 = 1 [L101] COND FALSE !(var_1_27 < (var_1_27 - var_1_27)) [L104] unsigned char stepLocal_2 = var_1_27; [L105] COND FALSE !(var_1_27 > stepLocal_2) [L108] var_1_10 = 9.75f [L110] COND TRUE ((((var_1_27) < (var_1_27)) ? (var_1_27) : (var_1_27))) < 25u [L111] var_1_18 = (((((var_1_19) > ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))) + (((((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))) < 0 ) ? -((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))) : ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22)))))) [L113] signed long int stepLocal_5 = ~ var_1_21; [L114] COND TRUE \read(var_1_13) [L115] COND FALSE !(stepLocal_5 > var_1_27) [L118] COND TRUE \read(var_1_24) [L119] var_1_23 = ((! var_1_25) || var_1_26) [L123] unsigned char stepLocal_4 = var_1_18 >= var_1_27; [L124] unsigned char stepLocal_3 = var_1_27; [L125] COND FALSE !(var_1_23 && stepLocal_4) [L128] COND FALSE !(1 >= stepLocal_3) [L131] var_1_12 = var_1_14 [L197] RET step() [L198] CALL, EXPR property() [L188-L189] return (((((((((var_1_27 + var_1_27) <= var_1_27) ? (var_1_1 == ((signed short int) (128 + var_1_27))) : ((var_1_27 >= (var_1_27 * var_1_27)) ? (var_1_1 == ((signed short int) var_1_27)) : (var_1_1 == ((signed short int) 1)))) && ((var_1_27 < (var_1_27 - var_1_27)) ? (var_1_6 == ((double) var_1_9)) : 1)) && ((var_1_27 > var_1_27) ? (var_1_10 == ((float) (1.00000000000009E13f - var_1_11))) : (var_1_10 == ((float) 9.75f)))) && ((var_1_23 && (var_1_18 >= var_1_27)) ? (var_1_12 == ((float) var_1_11)) : ((1 >= var_1_27) ? (var_1_12 == ((float) var_1_11)) : (var_1_12 == ((float) var_1_14))))) && (var_1_15 == ((signed char) (var_1_16 - var_1_17)))) && ((((((var_1_27) < (var_1_27)) ? (var_1_27) : (var_1_27))) < 25u) ? (var_1_18 == ((signed char) (((((var_1_19) > ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))) + (((((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))) < 0 ) ? -((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))) : ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22)))))))) : 1)) && (var_1_13 ? (((~ var_1_21) > var_1_27) ? (var_1_23 == ((unsigned char) (var_1_24 && (! var_1_25)))) : (var_1_24 ? (var_1_23 == ((unsigned char) ((! var_1_25) || var_1_26))) : 1)) : 1)) && (var_1_27 == ((unsigned char) var_1_21)) ; [L198] RET, EXPR property() [L198] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=39/4, var_1_11=2, var_1_12=3, var_1_13=1, var_1_14=3, var_1_15=0, var_1_16=126, var_1_17=126, var_1_18=0, var_1_19=-1, var_1_1=1, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=1, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=4, var_1_28=200, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=4294967290, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1073741824, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=39/4, var_1_11=2, var_1_12=3, var_1_13=1, var_1_14=3, var_1_15=0, var_1_16=126, var_1_17=126, var_1_18=0, var_1_19=-1, var_1_1=1, var_1_20=0, var_1_21=4, var_1_22=1, var_1_23=1, var_1_24=1, var_1_25=0, var_1_26=1, var_1_27=4, var_1_28=200, var_1_33=10, var_1_35=2147483647, var_1_36=32, var_1_37=4294967290, var_1_39=2147483647, var_1_40=2147483647, var_1_41=1073741824, var_1_42=0, var_1_46=0, var_1_49=0, var_1_6=63/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 31, 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=57occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 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 05:02:47,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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_f8747335-cf14-45b0-b525-fedf31c9f653/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 48911f036e4c9fa9d9a65d0028aef976f5373407f72a9bbf7695ddc823019d88 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:02:50,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:02:50,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:02:50,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:02:50,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:02:50,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:02:50,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:02:50,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:02:50,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:02:50,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:02:50,796 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:02:50,796 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:02:50,797 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:02:50,798 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:02:50,798 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:02:50,799 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:02:50,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:02:50,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:02:50,801 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:02:50,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:02:50,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:02:50,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:02:50,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:02:50,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:02:50,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:02:50,805 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:02:50,806 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:02:50,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:02:50,807 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:02:50,807 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:02:50,808 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:02:50,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:02:50,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:02:50,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:50,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:02:50,810 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:02:50,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:02:50,811 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:02:50,812 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:02:50,812 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:02:50,812 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:02:50,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:02:50,817 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_f8747335-cf14-45b0-b525-fedf31c9f653/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48911f036e4c9fa9d9a65d0028aef976f5373407f72a9bbf7695ddc823019d88 [2023-11-19 05:02:51,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:02:51,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:02:51,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:02:51,245 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:02:51,246 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:02:51,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i [2023-11-19 05:02:54,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:02:54,668 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:02:54,670 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i [2023-11-19 05:02:54,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data/1d29ee2c9/e9a11a881a3e484f80b4c6951f66bc27/FLAG3ad6c0a65 [2023-11-19 05:02:54,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/data/1d29ee2c9/e9a11a881a3e484f80b4c6951f66bc27 [2023-11-19 05:02:54,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:02:54,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:02:54,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:54,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:02:54,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:02:54,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:54" (1/1) ... [2023-11-19 05:02:54,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a74f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:54, skipping insertion in model container [2023-11-19 05:02:54,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:54" (1/1) ... [2023-11-19 05:02:54,806 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:02:55,003 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_f8747335-cf14-45b0-b525-fedf31c9f653/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i[918,931] [2023-11-19 05:02:55,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:55,141 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:02:55,164 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_f8747335-cf14-45b0-b525-fedf31c9f653/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i[918,931] [2023-11-19 05:02:55,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:02:55,273 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:02:55,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55 WrapperNode [2023-11-19 05:02:55,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:55,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:55,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:02:55,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:02:55,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,316 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,366 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197 [2023-11-19 05:02:55,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:02:55,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:02:55,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:02:55,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:02:55,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:02:55,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:02:55,469 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:02:55,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:02:55,470 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (1/1) ... [2023-11-19 05:02:55,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:55,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:02:55,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:02:55,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:02:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:02:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:02:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:02:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:02:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:02:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:02:55,722 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:02:55,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:02:56,457 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:02:56,471 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:02:56,471 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:02:56,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:56 BoogieIcfgContainer [2023-11-19 05:02:56,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:02:56,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:02:56,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:02:56,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:02:56,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:02:54" (1/3) ... [2023-11-19 05:02:56,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722dc355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:56, skipping insertion in model container [2023-11-19 05:02:56,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:55" (2/3) ... [2023-11-19 05:02:56,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722dc355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:02:56, skipping insertion in model container [2023-11-19 05:02:56,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:02:56" (3/3) ... [2023-11-19 05:02:56,489 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-1.i [2023-11-19 05:02:56,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:02:56,511 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:02:56,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:02:56,593 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;@36fdd539, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:02:56,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:02:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 59 states have internal predecessors, (84), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 05:02:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-19 05:02:56,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:56,621 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:56,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:56,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:56,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1625624238, now seen corresponding path program 1 times [2023-11-19 05:02:56,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:56,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412665085] [2023-11-19 05:02:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:56,652 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 05:02:56,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:56,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:56,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:57,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:02:57,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2023-11-19 05:02:57,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:02:57,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:02:57,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412665085] [2023-11-19 05:02:57,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412665085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:02:57,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:02:57,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:02:57,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983908061] [2023-11-19 05:02:57,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:02:57,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:02:57,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:02:57,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:02:57,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:02:57,288 INFO L87 Difference]: Start difference. First operand has 92 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 59 states have internal predecessors, (84), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 05:02:57,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:02:57,414 INFO L93 Difference]: Finished difference Result 177 states and 317 transitions. [2023-11-19 05:02:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:02:57,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2023-11-19 05:02:57,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:02:57,427 INFO L225 Difference]: With dead ends: 177 [2023-11-19 05:02:57,428 INFO L226 Difference]: Without dead ends: 88 [2023-11-19 05:02:57,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:02:57,437 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:02:57,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:02:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-19 05:02:57,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-19 05:02:57,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 05:02:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 138 transitions. [2023-11-19 05:02:57,496 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 138 transitions. Word has length 198 [2023-11-19 05:02:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:02:57,497 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 138 transitions. [2023-11-19 05:02:57,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 05:02:57,498 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 138 transitions. [2023-11-19 05:02:57,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-19 05:02:57,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:57,504 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:57,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:02:57,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:57,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:57,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:57,716 INFO L85 PathProgramCache]: Analyzing trace with hash 297282990, now seen corresponding path program 1 times [2023-11-19 05:02:57,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:57,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264700321] [2023-11-19 05:02:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:57,721 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 05:02:57,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:57,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:57,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:58,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 05:02:58,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:02:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-11-19 05:02:58,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:02:58,397 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:02:58,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264700321] [2023-11-19 05:02:58,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264700321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:02:58,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:02:58,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 05:02:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876086442] [2023-11-19 05:02:58,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:02:58,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:02:58,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:02:58,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:02:58,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:02:58,408 INFO L87 Difference]: Start difference. First operand 88 states and 138 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 05:02:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:02:59,021 INFO L93 Difference]: Finished difference Result 183 states and 281 transitions. [2023-11-19 05:02:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 05:02:59,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2023-11-19 05:02:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:02:59,026 INFO L225 Difference]: With dead ends: 183 [2023-11-19 05:02:59,026 INFO L226 Difference]: Without dead ends: 98 [2023-11-19 05:02:59,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-19 05:02:59,029 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 170 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:02:59,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 309 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 05:02:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-19 05:02:59,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2023-11-19 05:02:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 61 states have internal predecessors, (81), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 05:02:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2023-11-19 05:02:59,052 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 198 [2023-11-19 05:02:59,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:02:59,054 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2023-11-19 05:02:59,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 05:02:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2023-11-19 05:02:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-19 05:02:59,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:59,058 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:59,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:59,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:59,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:59,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:59,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1291064912, now seen corresponding path program 1 times [2023-11-19 05:02:59,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:59,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832739808] [2023-11-19 05:02:59,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:59,270 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 05:02:59,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:59,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:59,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:02:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:59,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:02:59,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:00,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:00,449 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:00,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832739808] [2023-11-19 05:03:00,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832739808] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:00,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:00,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-11-19 05:03:00,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973418357] [2023-11-19 05:03:00,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:00,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:00,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:00,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:03:00,453 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:00,625 INFO L93 Difference]: Finished difference Result 189 states and 283 transitions. [2023-11-19 05:03:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:00,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2023-11-19 05:03:00,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:00,632 INFO L225 Difference]: With dead ends: 189 [2023-11-19 05:03:00,633 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 05:03:00,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:03:00,635 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 15 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:00,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 227 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:03:00,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 05:03:00,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-19 05:03:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 61 states have internal predecessors, (80), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 05:03:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 142 transitions. [2023-11-19 05:03:00,676 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 142 transitions. Word has length 198 [2023-11-19 05:03:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:00,677 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 142 transitions. [2023-11-19 05:03:00,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 142 transitions. [2023-11-19 05:03:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-19 05:03:00,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:00,681 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:00,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:00,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:00,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:00,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1684091922, now seen corresponding path program 1 times [2023-11-19 05:03:00,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:00,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465137085] [2023-11-19 05:03:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:00,884 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 05:03:00,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:00,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:00,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:01,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:03:01,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:01,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:01,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:03:01,773 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:01,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465137085] [2023-11-19 05:03:01,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465137085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:01,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:01,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:01,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272628475] [2023-11-19 05:03:01,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:01,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:01,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:01,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:01,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:01,777 INFO L87 Difference]: Start difference. First operand 96 states and 142 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:01,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:01,887 INFO L93 Difference]: Finished difference Result 282 states and 420 transitions. [2023-11-19 05:03:01,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:01,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2023-11-19 05:03:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:01,891 INFO L225 Difference]: With dead ends: 282 [2023-11-19 05:03:01,892 INFO L226 Difference]: Without dead ends: 189 [2023-11-19 05:03:01,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:01,894 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 30 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:01,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 256 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:03:01,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-19 05:03:01,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2023-11-19 05:03:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 118 states have (on average 1.3135593220338984) internal successors, (155), 118 states have internal predecessors, (155), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-19 05:03:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2023-11-19 05:03:01,935 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 198 [2023-11-19 05:03:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:01,936 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2023-11-19 05:03:01,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2023-11-19 05:03:01,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-19 05:03:01,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:01,941 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:01,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:02,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:02,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:02,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:02,150 INFO L85 PathProgramCache]: Analyzing trace with hash -613740140, now seen corresponding path program 1 times [2023-11-19 05:03:02,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:02,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215646085] [2023-11-19 05:03:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:02,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:03:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:02,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:02,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:02,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:03:02,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:03,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:03,526 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:03,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215646085] [2023-11-19 05:03:03,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215646085] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:03,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:03,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-11-19 05:03:03,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344890972] [2023-11-19 05:03:03,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:03,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:03,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:03,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:03,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-19 05:03:03,530 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:03,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:03,854 INFO L93 Difference]: Finished difference Result 545 states and 815 transitions. [2023-11-19 05:03:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:03:03,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2023-11-19 05:03:03,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:03,861 INFO L225 Difference]: With dead ends: 545 [2023-11-19 05:03:03,862 INFO L226 Difference]: Without dead ends: 361 [2023-11-19 05:03:03,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:03:03,864 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 124 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:03,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 340 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:03:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-19 05:03:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 201. [2023-11-19 05:03:03,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 132 states have (on average 1.3333333333333333) internal successors, (176), 132 states have internal predecessors, (176), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-19 05:03:03,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 300 transitions. [2023-11-19 05:03:03,966 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 300 transitions. Word has length 199 [2023-11-19 05:03:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:03,968 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 300 transitions. [2023-11-19 05:03:03,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 300 transitions. [2023-11-19 05:03:03,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-19 05:03:03,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:03,974 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:03,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:04,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:04,185 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:04,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:04,185 INFO L85 PathProgramCache]: Analyzing trace with hash -611893098, now seen corresponding path program 1 times [2023-11-19 05:03:04,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:04,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864438901] [2023-11-19 05:03:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:04,186 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 05:03:04,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:04,187 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:04,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:04,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:03:04,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:05,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:05,517 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:05,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864438901] [2023-11-19 05:03:05,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864438901] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:05,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:05,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-11-19 05:03:05,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397095911] [2023-11-19 05:03:05,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:05,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:05,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:05,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:05,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:03:05,522 INFO L87 Difference]: Start difference. First operand 201 states and 300 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:05,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:05,846 INFO L93 Difference]: Finished difference Result 565 states and 842 transitions. [2023-11-19 05:03:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:05,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2023-11-19 05:03:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:05,851 INFO L225 Difference]: With dead ends: 565 [2023-11-19 05:03:05,851 INFO L226 Difference]: Without dead ends: 367 [2023-11-19 05:03:05,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:03:05,853 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 141 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:05,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 421 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:03:05,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-19 05:03:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 209. [2023-11-19 05:03:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 140 states have (on average 1.3142857142857143) internal successors, (184), 140 states have internal predecessors, (184), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-19 05:03:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 308 transitions. [2023-11-19 05:03:05,896 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 308 transitions. Word has length 199 [2023-11-19 05:03:05,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:05,897 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 308 transitions. [2023-11-19 05:03:05,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:05,897 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 308 transitions. [2023-11-19 05:03:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-19 05:03:05,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:05,900 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:05,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:06,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:06,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:06,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:06,122 INFO L85 PathProgramCache]: Analyzing trace with hash -220713130, now seen corresponding path program 1 times [2023-11-19 05:03:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229198827] [2023-11-19 05:03:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:06,123 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 05:03:06,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:06,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:06,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:06,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 05:03:06,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:07,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:08,032 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:08,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229198827] [2023-11-19 05:03:08,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229198827] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:08,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:08,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2023-11-19 05:03:08,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621213568] [2023-11-19 05:03:08,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:08,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:03:08,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:08,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:03:08,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:03:08,035 INFO L87 Difference]: Start difference. First operand 209 states and 308 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:09,333 INFO L93 Difference]: Finished difference Result 845 states and 1246 transitions. [2023-11-19 05:03:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 05:03:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2023-11-19 05:03:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:09,340 INFO L225 Difference]: With dead ends: 845 [2023-11-19 05:03:09,340 INFO L226 Difference]: Without dead ends: 639 [2023-11-19 05:03:09,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2023-11-19 05:03:09,343 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 435 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:09,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 473 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 05:03:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-11-19 05:03:09,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 347. [2023-11-19 05:03:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 250 states have (on average 1.344) internal successors, (336), 252 states have internal predecessors, (336), 88 states have call successors, (88), 8 states have call predecessors, (88), 8 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-19 05:03:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 512 transitions. [2023-11-19 05:03:09,425 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 512 transitions. Word has length 199 [2023-11-19 05:03:09,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:09,426 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 512 transitions. [2023-11-19 05:03:09,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:09,427 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 512 transitions. [2023-11-19 05:03:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-19 05:03:09,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:09,431 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:09,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:09,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:09,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:09,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash -218866088, now seen corresponding path program 1 times [2023-11-19 05:03:09,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:09,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99309508] [2023-11-19 05:03:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:09,651 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 05:03:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:09,652 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:09,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:10,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:03:10,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:10,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:10,889 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:10,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99309508] [2023-11-19 05:03:10,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99309508] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:10,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:10,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-11-19 05:03:10,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217733207] [2023-11-19 05:03:10,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:10,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:10,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:10,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:10,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:03:10,892 INFO L87 Difference]: Start difference. First operand 347 states and 512 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:11,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:11,325 INFO L93 Difference]: Finished difference Result 711 states and 1049 transitions. [2023-11-19 05:03:11,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:03:11,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2023-11-19 05:03:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:11,331 INFO L225 Difference]: With dead ends: 711 [2023-11-19 05:03:11,332 INFO L226 Difference]: Without dead ends: 367 [2023-11-19 05:03:11,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:03:11,334 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 119 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:11,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 340 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:03:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-19 05:03:11,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 339. [2023-11-19 05:03:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 242 states have (on average 1.3471074380165289) internal successors, (326), 244 states have internal predecessors, (326), 88 states have call successors, (88), 8 states have call predecessors, (88), 8 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-19 05:03:11,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 502 transitions. [2023-11-19 05:03:11,376 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 502 transitions. Word has length 199 [2023-11-19 05:03:11,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:11,377 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 502 transitions. [2023-11-19 05:03:11,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:11,377 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 502 transitions. [2023-11-19 05:03:11,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-19 05:03:11,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:11,380 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:11,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:11,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:11,595 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:11,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:11,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1025565141, now seen corresponding path program 1 times [2023-11-19 05:03:11,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:11,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085322168] [2023-11-19 05:03:11,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:11,597 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 05:03:11,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:11,598 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:11,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:11,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:03:11,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:12,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:12,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:12,707 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:12,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085322168] [2023-11-19 05:03:12,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085322168] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:12,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:12,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-19 05:03:12,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937080500] [2023-11-19 05:03:12,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:12,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:03:12,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:12,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:03:12,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:03:12,712 INFO L87 Difference]: Start difference. First operand 339 states and 502 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:13,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:13,309 INFO L93 Difference]: Finished difference Result 1065 states and 1583 transitions. [2023-11-19 05:03:13,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:03:13,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2023-11-19 05:03:13,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:13,317 INFO L225 Difference]: With dead ends: 1065 [2023-11-19 05:03:13,317 INFO L226 Difference]: Without dead ends: 729 [2023-11-19 05:03:13,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-19 05:03:13,320 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 229 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:13,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 472 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 05:03:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2023-11-19 05:03:13,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 377. [2023-11-19 05:03:13,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 280 states have (on average 1.3642857142857143) internal successors, (382), 282 states have internal predecessors, (382), 88 states have call successors, (88), 8 states have call predecessors, (88), 8 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-19 05:03:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 558 transitions. [2023-11-19 05:03:13,375 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 558 transitions. Word has length 200 [2023-11-19 05:03:13,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:13,376 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 558 transitions. [2023-11-19 05:03:13,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:13,377 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 558 transitions. [2023-11-19 05:03:13,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-19 05:03:13,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:13,379 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:13,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:13,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:13,588 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:13,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1023718099, now seen corresponding path program 1 times [2023-11-19 05:03:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:13,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401823813] [2023-11-19 05:03:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:13,590 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 05:03:13,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:13,594 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:13,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:13,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:03:13,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:14,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-11-19 05:03:14,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:14,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401823813] [2023-11-19 05:03:14,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401823813] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:14,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:14,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-11-19 05:03:14,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13135203] [2023-11-19 05:03:14,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:14,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:14,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:14,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:14,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:03:14,757 INFO L87 Difference]: Start difference. First operand 377 states and 558 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:16,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:16,010 INFO L93 Difference]: Finished difference Result 1077 states and 1604 transitions. [2023-11-19 05:03:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:03:16,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2023-11-19 05:03:16,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:16,017 INFO L225 Difference]: With dead ends: 1077 [2023-11-19 05:03:16,017 INFO L226 Difference]: Without dead ends: 703 [2023-11-19 05:03:16,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:03:16,019 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 218 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:16,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 376 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 05:03:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-11-19 05:03:16,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 369. [2023-11-19 05:03:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 272 states have (on average 1.3676470588235294) internal successors, (372), 274 states have internal predecessors, (372), 88 states have call successors, (88), 8 states have call predecessors, (88), 8 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-19 05:03:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 548 transitions. [2023-11-19 05:03:16,102 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 548 transitions. Word has length 200 [2023-11-19 05:03:16,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:16,104 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 548 transitions. [2023-11-19 05:03:16,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 05:03:16,104 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 548 transitions. [2023-11-19 05:03:16,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-19 05:03:16,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:16,106 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:16,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:16,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:16,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:16,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:16,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1867104937, now seen corresponding path program 1 times [2023-11-19 05:03:16,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:16,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211405728] [2023-11-19 05:03:16,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:16,316 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 05:03:16,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:16,317 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:16,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:16,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:03:16,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:17,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 39 proven. 51 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2023-11-19 05:03:17,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211405728] [2023-11-19 05:03:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211405728] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1954372340] [2023-11-19 05:03:17,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:17,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:03:17,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:03:17,571 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:03:17,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 05:03:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:18,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:03:18,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:19,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:19,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 39 proven. 51 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2023-11-19 05:03:19,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1954372340] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:19,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191714592] [2023-11-19 05:03:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:19,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:19,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:19,551 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:19,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 05:03:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:19,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 05:03:19,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 959 proven. 96 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-11-19 05:03:20,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:21,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 39 proven. 51 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2023-11-19 05:03:21,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191714592] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:21,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:03:21,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 9, 8] total 24 [2023-11-19 05:03:21,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108722509] [2023-11-19 05:03:21,588 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:21,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-19 05:03:21,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:03:21,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-19 05:03:21,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2023-11-19 05:03:21,592 INFO L87 Difference]: Start difference. First operand 369 states and 548 transitions. Second operand has 24 states, 24 states have (on average 5.5) internal successors, (132), 22 states have internal predecessors, (132), 8 states have call successors, (96), 6 states have call predecessors, (96), 10 states have return successors, (98), 8 states have call predecessors, (98), 8 states have call successors, (98) [2023-11-19 05:03:26,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:26,578 INFO L93 Difference]: Finished difference Result 1161 states and 1670 transitions. [2023-11-19 05:03:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-19 05:03:26,578 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.5) internal successors, (132), 22 states have internal predecessors, (132), 8 states have call successors, (96), 6 states have call predecessors, (96), 10 states have return successors, (98), 8 states have call predecessors, (98), 8 states have call successors, (98) Word has length 200 [2023-11-19 05:03:26,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:26,584 INFO L225 Difference]: With dead ends: 1161 [2023-11-19 05:03:26,584 INFO L226 Difference]: Without dead ends: 795 [2023-11-19 05:03:26,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1241 GetRequests, 1178 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1299 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=958, Invalid=3202, Unknown=0, NotChecked=0, Total=4160 [2023-11-19 05:03:26,589 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 596 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:26,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 1133 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-19 05:03:26,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-11-19 05:03:26,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 441. [2023-11-19 05:03:26,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 292 states have (on average 1.273972602739726) internal successors, (372), 292 states have internal predecessors, (372), 124 states have call successors, (124), 24 states have call predecessors, (124), 24 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-19 05:03:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 620 transitions. [2023-11-19 05:03:26,684 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 620 transitions. Word has length 200 [2023-11-19 05:03:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:26,685 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 620 transitions. [2023-11-19 05:03:26,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.5) internal successors, (132), 22 states have internal predecessors, (132), 8 states have call successors, (96), 6 states have call predecessors, (96), 10 states have return successors, (98), 8 states have call predecessors, (98), 8 states have call successors, (98) [2023-11-19 05:03:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 620 transitions. [2023-11-19 05:03:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-19 05:03:26,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:26,688 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:26,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:26,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:27,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:27,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:27,296 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:27,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1318828178, now seen corresponding path program 1 times [2023-11-19 05:03:27,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:03:27,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560570739] [2023-11-19 05:03:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:27,297 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 05:03:27,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:03:27,299 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 05:03:27,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/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 (15)] Waiting until timeout for monitored process [2023-11-19 05:03:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:27,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 05:03:27,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 1085 proven. 159 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2023-11-19 05:03:29,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:30,219 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:03:30,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560570739] [2023-11-19 05:03:30,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560570739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:30,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [503513416] [2023-11-19 05:03:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:30,220 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:03:30,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:03:30,221 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:03:30,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8747335-cf14-45b0-b525-fedf31c9f653/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 05:03:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:31,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:03:31,073 INFO L285 TraceCheckSpWp]: Computing forward predicates...