./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje --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 088876b530f5f297c2ed6ed519f2eb16dca02821d727525deef88d098a188170 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:24:58,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:24:58,112 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:24:58,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:24:58,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:24:58,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:24:58,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:24:58,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:24:58,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:24:58,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:24:58,168 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:24:58,169 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:24:58,170 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:24:58,170 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:24:58,171 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:24:58,173 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:24:58,174 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:24:58,174 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:24:58,174 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:24:58,175 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:24:58,175 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:24:58,177 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:24:58,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:24:58,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:24:58,178 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:24:58,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:24:58,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:24:58,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:24:58,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:24:58,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:24:58,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:24:58,180 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:24:58,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:24:58,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:24:58,181 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:24:58,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:24:58,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:24:58,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:24:58,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:58,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:24:58,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:24:58,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:24:58,188 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:24:58,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:24:58,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:24:58,189 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:24:58,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:24:58,189 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_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 088876b530f5f297c2ed6ed519f2eb16dca02821d727525deef88d098a188170 [2024-11-09 07:24:58,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:24:58,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:24:58,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:24:58,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:24:58,573 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:24:58,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i Unable to find full path for "g++" [2024-11-09 07:25:00,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:25:00,770 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:25:00,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i [2024-11-09 07:25:00,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data/28bb8635b/fcd8039cb2194ea3a9cc2858decb927b/FLAG991c8d546 [2024-11-09 07:25:00,796 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data/28bb8635b/fcd8039cb2194ea3a9cc2858decb927b [2024-11-09 07:25:00,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:25:00,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:25:00,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:00,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:25:00,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:25:00,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:00" (1/1) ... [2024-11-09 07:25:00,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cce11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:00, skipping insertion in model container [2024-11-09 07:25:00,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:00" (1/1) ... [2024-11-09 07:25:00,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:25:01,053 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i[916,929] [2024-11-09 07:25:01,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:01,135 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:25:01,145 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i[916,929] [2024-11-09 07:25:01,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:01,231 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:25:01,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01 WrapperNode [2024-11-09 07:25:01,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:01,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:01,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:25:01,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:25:01,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,296 INFO L138 Inliner]: procedures = 30, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 470 [2024-11-09 07:25:01,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:01,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:25:01,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:25:01,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:25:01,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:25:01,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:25:01,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:25:01,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:25:01,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:01,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:01,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:25:01,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:25:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:25:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 07:25:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:25:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 07:25:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:25:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 07:25:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:25:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:25:01,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:25:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:25:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:25:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:25:01,558 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:25:01,561 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:25:02,161 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-09 07:25:02,162 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:25:02,816 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:25:02,816 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:25:02,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:02 BoogieIcfgContainer [2024-11-09 07:25:02,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:25:02,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:25:02,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:25:02,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:25:02,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:25:00" (1/3) ... [2024-11-09 07:25:02,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ccfada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:02, skipping insertion in model container [2024-11-09 07:25:02,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (2/3) ... [2024-11-09 07:25:02,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ccfada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:02, skipping insertion in model container [2024-11-09 07:25:02,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:02" (3/3) ... [2024-11-09 07:25:02,830 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-69.i [2024-11-09 07:25:02,849 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:25:02,850 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:25:02,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:25:02,936 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b8f1374, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:25:02,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:25:02,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:25:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 07:25:02,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:02,952 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:02,953 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:02,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:02,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1932191165, now seen corresponding path program 1 times [2024-11-09 07:25:02,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:02,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820344161] [2024-11-09 07:25:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:02,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:04,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626187841] [2024-11-09 07:25:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:04,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:04,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:04,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:04,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:25:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:25:07,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:25:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:25:11,909 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:25:11,912 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:25:11,914 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:25:11,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:25:12,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 07:25:12,124 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:25:12,176 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:25:12,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:25:12 BoogieIcfgContainer [2024-11-09 07:25:12,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:25:12,182 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:25:12,182 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:25:12,182 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:25:12,183 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:02" (3/4) ... [2024-11-09 07:25:12,185 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:25:12,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:25:12,188 INFO L158 Benchmark]: Toolchain (without parser) took 11387.33ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 124.1MB in the beginning and 132.5MB in the end (delta: -8.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 07:25:12,189 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:25:12,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.08ms. Allocated memory is still 157.3MB. Free memory was 124.1MB in the beginning and 107.3MB in the end (delta: 16.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:25:12,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.05ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 103.1MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 07:25:12,191 INFO L158 Benchmark]: Boogie Preprocessor took 72.17ms. Allocated memory is still 157.3MB. Free memory was 103.1MB in the beginning and 100.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:25:12,191 INFO L158 Benchmark]: RCFGBuilder took 1447.06ms. Allocated memory is still 157.3MB. Free memory was 100.0MB in the beginning and 106.7MB in the end (delta: -6.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-09 07:25:12,192 INFO L158 Benchmark]: TraceAbstraction took 9361.56ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 106.7MB in the beginning and 132.5MB in the end (delta: -25.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-11-09 07:25:12,193 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 205.5MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:25:12,196 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.08ms. Allocated memory is still 157.3MB. Free memory was 124.1MB in the beginning and 107.3MB in the end (delta: 16.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.05ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 103.1MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.17ms. Allocated memory is still 157.3MB. Free memory was 103.1MB in the beginning and 100.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1447.06ms. Allocated memory is still 157.3MB. Free memory was 100.0MB in the beginning and 106.7MB in the end (delta: -6.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9361.56ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 106.7MB in the beginning and 132.5MB in the end (delta: -25.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 205.5MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 118. Possible FailurePath: [L35] unsigned char isInitial = 0; [L36-L48] struct WrapperStruct00 WrapperStruct00 = { -100, 0, 8, 256, 500, -64, -8, 0, 0, 4.625, 15.5 }; [L122] isInitial = 1 [L123] FCALL initially() [L124] COND TRUE 1 [L125] FCALL updateLastVariables() [L126] CALL updateVariables() [L91] WrapperStruct00.var_1_2 = __VERIFIER_nondet_ulong() [L92] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967295) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967295) VAL [WrapperStruct00={4:0}, isInitial=1] [L94] WrapperStruct00.var_1_3 = __VERIFIER_nondet_ulong() [L95] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 4294967295) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 4294967295) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ulong() [L98] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 4294967295) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 4294967295) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] WrapperStruct00.var_1_5 = __VERIFIER_nondet_ulong() [L101] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 4294967295) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 4294967295) VAL [WrapperStruct00={4:0}, isInitial=1] [L103] WrapperStruct00.var_1_8 = __VERIFIER_nondet_char() [L104] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L107] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] WrapperStruct00.var_1_10 = __VERIFIER_nondet_uchar() [L110] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L111] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L112] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L113] EXPR WrapperStruct00.var_1_13 [L113] EXPR WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L113] EXPR WrapperStruct00.var_1_13 [L113] EXPR WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L113] EXPR (WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L113] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L126] RET updateVariables() [L127] CALL step() [L52] EXPR WrapperStruct00.var_1_2 [L52] EXPR WrapperStruct00.var_1_4 [L52] EXPR WrapperStruct00.var_1_5 [L52] EXPR WrapperStruct00.var_1_3 [L52] EXPR (((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3) [L52] EXPR WrapperStruct00.var_1_3 [L52] EXPR (((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3) [L52] COND TRUE WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3))) [L53] EXPR WrapperStruct00.var_1_8 [L53] WrapperStruct00.var_1_7 = WrapperStruct00.var_1_8 [L65] EXPR WrapperStruct00.var_1_5 [L65] unsigned long int stepLocal_1 = WrapperStruct00.var_1_5; [L66] EXPR WrapperStruct00.var_1_2 [L66] EXPR WrapperStruct00.var_1_3 [L66] EXPR WrapperStruct00.var_1_4 [L66] EXPR ((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4) [L66] EXPR WrapperStruct00.var_1_4 [L66] EXPR ((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4) [L66] unsigned long int stepLocal_0 = WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4))); [L67] EXPR WrapperStruct00.var_1_5 [L67] COND TRUE stepLocal_0 < WrapperStruct00.var_1_5 [L68] EXPR WrapperStruct00.var_1_2 [L68] COND TRUE stepLocal_1 > WrapperStruct00.var_1_2 [L69] EXPR WrapperStruct00.var_1_7 [L69] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_7 [L74] EXPR WrapperStruct00.var_1_9 [L74] unsigned char stepLocal_3 = WrapperStruct00.var_1_9; [L75] EXPR WrapperStruct00.var_1_1 [L75] EXPR WrapperStruct00.var_1_7 [L75] signed long int stepLocal_2 = WrapperStruct00.var_1_1 + WrapperStruct00.var_1_7; [L76] EXPR WrapperStruct00.var_1_7 [L76] EXPR WrapperStruct00.var_1_8 [L76] EXPR WrapperStruct00.var_1_4 [L76] COND FALSE !(((WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8) == WrapperStruct00.var_1_4) && stepLocal_3) [L87] EXPR WrapperStruct00.var_1_13 [L87] WrapperStruct00.var_1_11 = WrapperStruct00.var_1_13 [L127] RET step() [L128] CALL, EXPR property() [L118] EXPR WrapperStruct00.var_1_2 [L118] EXPR WrapperStruct00.var_1_3 [L118] EXPR WrapperStruct00.var_1_4 [L118] EXPR ((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4) [L118] EXPR WrapperStruct00.var_1_4 [L118] EXPR ((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4) [L118] EXPR WrapperStruct00.var_1_5 [L118] EXPR ((WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < WrapperStruct00.var_1_5) ? ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7))) : 1 [L118] EXPR WrapperStruct00.var_1_5 [L118] EXPR WrapperStruct00.var_1_2 [L118] EXPR (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) [L118] EXPR WrapperStruct00.var_1_1 [L118] EXPR WrapperStruct00.var_1_7 [L118] EXPR (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) [L118] EXPR ((WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < WrapperStruct00.var_1_5) ? ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7))) : 1 [L118] EXPR (((WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < WrapperStruct00.var_1_5) ? ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7))) : 1) && ((WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3)))) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_9 || WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_3 < WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((signed char) -4))))) [L118] EXPR WrapperStruct00.var_1_2 [L118] EXPR WrapperStruct00.var_1_4 [L118] EXPR WrapperStruct00.var_1_5 [L118] EXPR WrapperStruct00.var_1_3 [L118] EXPR (((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3) [L118] EXPR WrapperStruct00.var_1_3 [L118] EXPR (((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3) [L118] EXPR (WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3)))) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_9 || WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_3 < WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((signed char) -4)))) [L118] EXPR WrapperStruct00.var_1_7 [L118] EXPR WrapperStruct00.var_1_8 [L118] EXPR (WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3)))) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_9 || WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_3 < WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((signed char) -4)))) [L118] EXPR (((WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < WrapperStruct00.var_1_5) ? ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7))) : 1) && ((WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3)))) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_9 || WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_3 < WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((signed char) -4))))) [L118] EXPR ((((WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < WrapperStruct00.var_1_5) ? ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7))) : 1) && ((WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3)))) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_9 || WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_3 < WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((signed char) -4)))))) && ((((WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8) == WrapperStruct00.var_1_4) && WrapperStruct00.var_1_9) ? ((! WrapperStruct00.var_1_10) ? (((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_7) != WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) [L118] EXPR WrapperStruct00.var_1_7 [L118] EXPR WrapperStruct00.var_1_8 [L118] EXPR WrapperStruct00.var_1_4 [L118] EXPR ((WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8) == WrapperStruct00.var_1_4) && WrapperStruct00.var_1_9 [L118] EXPR (((WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8) == WrapperStruct00.var_1_4) && WrapperStruct00.var_1_9) ? ((! WrapperStruct00.var_1_10) ? (((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_7) != WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13)) [L118] EXPR WrapperStruct00.var_1_11 [L118] EXPR WrapperStruct00.var_1_13 [L118] EXPR (((WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8) == WrapperStruct00.var_1_4) && WrapperStruct00.var_1_9) ? ((! WrapperStruct00.var_1_10) ? (((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_7) != WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13)) [L118] EXPR ((((WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < WrapperStruct00.var_1_5) ? ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7))) : 1) && ((WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3)))) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_9 || WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_3 < WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((signed char) -4)))))) && ((((WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8) == WrapperStruct00.var_1_4) && WrapperStruct00.var_1_9) ? ((! WrapperStruct00.var_1_10) ? (((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_7) != WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) [L118-L119] return ((((WrapperStruct00.var_1_2 * ((((WrapperStruct00.var_1_3) < (WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_3) : (WrapperStruct00.var_1_4)))) < WrapperStruct00.var_1_5) ? ((WrapperStruct00.var_1_5 > WrapperStruct00.var_1_2) ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_7))) : 1) && ((WrapperStruct00.var_1_2 < (((((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) > (WrapperStruct00.var_1_3)) ? ((WrapperStruct00.var_1_4 * WrapperStruct00.var_1_5)) : (WrapperStruct00.var_1_3)))) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_9 || WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : ((WrapperStruct00.var_1_3 < WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_7 == ((signed char) -4)))))) && ((((WrapperStruct00.var_1_7 + WrapperStruct00.var_1_8) == WrapperStruct00.var_1_4) && WrapperStruct00.var_1_9) ? ((! WrapperStruct00.var_1_10) ? (((WrapperStruct00.var_1_1 + WrapperStruct00.var_1_7) != WrapperStruct00.var_1_8) ? (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_11 == ((double) WrapperStruct00.var_1_13))) ; [L128] RET, EXPR property() [L128] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.2s, OverallIterations: 1, TraceHistogramMax: 15, 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=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:25:12,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje --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 088876b530f5f297c2ed6ed519f2eb16dca02821d727525deef88d098a188170 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:25:14,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:25:14,992 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 07:25:15,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:25:15,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:25:15,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:25:15,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:25:15,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:25:15,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:25:15,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:25:15,050 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:25:15,051 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:25:15,051 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:25:15,052 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:25:15,052 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:25:15,052 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:25:15,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:25:15,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:25:15,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:25:15,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:25:15,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:25:15,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:25:15,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:25:15,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:25:15,063 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:25:15,063 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:25:15,064 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:25:15,064 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:25:15,064 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:25:15,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:25:15,065 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:25:15,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:25:15,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:25:15,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:25:15,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:25:15,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:15,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:25:15,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:25:15,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:25:15,067 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:25:15,068 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:25:15,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:25:15,069 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:25:15,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 088876b530f5f297c2ed6ed519f2eb16dca02821d727525deef88d098a188170 [2024-11-09 07:25:15,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:25:15,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:25:15,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:25:15,504 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:25:15,505 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:25:15,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i Unable to find full path for "g++" [2024-11-09 07:25:17,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:25:17,799 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:25:17,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i [2024-11-09 07:25:17,809 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data/cb1520ad6/a0174dd7b5d141d3990fd044d15d8f0b/FLAG95bb5ec6e [2024-11-09 07:25:17,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/data/cb1520ad6/a0174dd7b5d141d3990fd044d15d8f0b [2024-11-09 07:25:17,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:25:17,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:25:17,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:17,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:25:17,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:25:17,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:17" (1/1) ... [2024-11-09 07:25:17,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363a245c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:17, skipping insertion in model container [2024-11-09 07:25:17,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:17" (1/1) ... [2024-11-09 07:25:17,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:25:18,069 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i[916,929] [2024-11-09 07:25:18,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:18,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:25:18,202 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i[916,929] [2024-11-09 07:25:18,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:18,275 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:25:18,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18 WrapperNode [2024-11-09 07:25:18,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:18,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:18,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:25:18,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:25:18,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,366 INFO L138 Inliner]: procedures = 37, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 468 [2024-11-09 07:25:18,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:18,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:25:18,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:25:18,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:25:18,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:25:18,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:25:18,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:25:18,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:25:18,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (1/1) ... [2024-11-09 07:25:18,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:18,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:18,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:25:18,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:25:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:25:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 07:25:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2024-11-09 07:25:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 07:25:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 07:25:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:25:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:25:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 07:25:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2024-11-09 07:25:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2024-11-09 07:25:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-11-09 07:25:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:25:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:25:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:25:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:25:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 07:25:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 07:25:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 07:25:18,712 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:25:18,715 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:25:19,650 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-09 07:25:19,651 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:25:19,666 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:25:19,666 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:25:19,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:19 BoogieIcfgContainer [2024-11-09 07:25:19,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:25:19,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:25:19,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:25:19,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:25:19,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:25:17" (1/3) ... [2024-11-09 07:25:19,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57919319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:19, skipping insertion in model container [2024-11-09 07:25:19,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:18" (2/3) ... [2024-11-09 07:25:19,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57919319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:19, skipping insertion in model container [2024-11-09 07:25:19,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:19" (3/3) ... [2024-11-09 07:25:19,677 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-69.i [2024-11-09 07:25:19,697 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:25:19,697 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:25:19,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:25:19,776 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5585a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:25:19,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:25:19,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 76 states have (on average 1.4342105263157894) internal successors, (109), 77 states have internal predecessors, (109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:25:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 07:25:19,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:19,796 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:19,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:19,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1301228568, now seen corresponding path program 1 times [2024-11-09 07:25:19,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:25:19,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315697779] [2024-11-09 07:25:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:19,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:19,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:25:19,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:25:19,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 07:25:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:20,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:25:20,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:20,360 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 07:25:20,360 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:20,361 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:25:20,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315697779] [2024-11-09 07:25:20,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315697779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:20,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:20,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:20,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034439998] [2024-11-09 07:25:20,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:20,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:25:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:25:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:25:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:25:20,403 INFO L87 Difference]: Start difference. First operand has 94 states, 76 states have (on average 1.4342105263157894) internal successors, (109), 77 states have internal predecessors, (109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 07:25:20,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:20,440 INFO L93 Difference]: Finished difference Result 181 states and 287 transitions. [2024-11-09 07:25:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:25:20,443 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2024-11-09 07:25:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:20,453 INFO L225 Difference]: With dead ends: 181 [2024-11-09 07:25:20,453 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 07:25:20,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:25:20,461 INFO L432 NwaCegarLoop]: 132 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, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:20,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:25:20,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 07:25:20,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-09 07:25:20,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 73 states have internal predecessors, (102), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:25:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 132 transitions. [2024-11-09 07:25:20,517 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 132 transitions. Word has length 119 [2024-11-09 07:25:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:20,518 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 132 transitions. [2024-11-09 07:25:20,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 07:25:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2024-11-09 07:25:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 07:25:20,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:20,523 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:20,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 07:25:20,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:20,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:20,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:20,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2093250050, now seen corresponding path program 1 times [2024-11-09 07:25:20,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:25:20,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202956125] [2024-11-09 07:25:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:20,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:20,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:25:20,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:25:20,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 07:25:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:21,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:25:21,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:25:21,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:21,240 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:25:21,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202956125] [2024-11-09 07:25:21,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202956125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:21,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:21,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:25:21,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988953515] [2024-11-09 07:25:21,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:21,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:25:21,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:25:21,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:25:21,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:25:21,250 INFO L87 Difference]: Start difference. First operand 90 states and 132 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:25:21,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:21,339 INFO L93 Difference]: Finished difference Result 179 states and 264 transitions. [2024-11-09 07:25:21,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:25:21,342 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2024-11-09 07:25:21,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:21,345 INFO L225 Difference]: With dead ends: 179 [2024-11-09 07:25:21,347 INFO L226 Difference]: Without dead ends: 92 [2024-11-09 07:25:21,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:25:21,350 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:21,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:25:21,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-09 07:25:21,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-09 07:25:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 75 states have internal predecessors, (104), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:25:21,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2024-11-09 07:25:21,375 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 119 [2024-11-09 07:25:21,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:21,377 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2024-11-09 07:25:21,377 INFO L472 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:25:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2024-11-09 07:25:21,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 07:25:21,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:21,382 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:21,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:21,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:21,585 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:21,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:21,586 INFO L85 PathProgramCache]: Analyzing trace with hash -185680999, now seen corresponding path program 1 times [2024-11-09 07:25:21,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:25:21,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621881933] [2024-11-09 07:25:21,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:21,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:21,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:25:21,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:25:21,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 07:25:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:22,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:25:22,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:22,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:25:22,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:25:22,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 44 [2024-11-09 07:25:25,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:25:25,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 20 [2024-11-09 07:25:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:25:25,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:25,901 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:25:25,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621881933] [2024-11-09 07:25:25,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621881933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:25,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:25,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 07:25:25,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393809195] [2024-11-09 07:25:25,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:25,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:25:25,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:25:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:25:25,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2024-11-09 07:25:25,905 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:25:29,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:31,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:33,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:35,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:37,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:25:39,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:41,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:25:43,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:45,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:25:47,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:49,853 INFO L93 Difference]: Finished difference Result 224 states and 327 transitions. [2024-11-09 07:25:49,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:25:49,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 121 [2024-11-09 07:25:49,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:49,859 INFO L225 Difference]: With dead ends: 224 [2024-11-09 07:25:49,859 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 07:25:49,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-11-09 07:25:49,861 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 99 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:49,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 396 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 10 Unknown, 0 Unchecked, 23.7s Time] [2024-11-09 07:25:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 07:25:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 100. [2024-11-09 07:25:49,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:25:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 145 transitions. [2024-11-09 07:25:49,873 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 145 transitions. Word has length 121 [2024-11-09 07:25:49,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:49,873 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 145 transitions. [2024-11-09 07:25:49,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:25:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 145 transitions. [2024-11-09 07:25:49,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 07:25:49,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:49,876 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:49,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 07:25:50,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:50,080 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:50,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -772487013, now seen corresponding path program 1 times [2024-11-09 07:25:50,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:25:50,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809925725] [2024-11-09 07:25:50,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:50,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:50,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:25:50,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:25:50,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 07:25:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:50,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:25:50,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:50,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:25:50,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:25:50,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2024-11-09 07:25:50,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:25:50,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 10 [2024-11-09 07:25:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:25:50,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:50,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:25:50,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809925725] [2024-11-09 07:25:50,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809925725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:50,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:50,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:25:50,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386964972] [2024-11-09 07:25:50,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:50,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:25:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:25:50,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:25:50,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:25:50,714 INFO L87 Difference]: Start difference. First operand 100 states and 145 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:25:51,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:51,759 INFO L93 Difference]: Finished difference Result 245 states and 354 transitions. [2024-11-09 07:25:51,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:25:51,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 121 [2024-11-09 07:25:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:51,762 INFO L225 Difference]: With dead ends: 245 [2024-11-09 07:25:51,762 INFO L226 Difference]: Without dead ends: 148 [2024-11-09 07:25:51,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:25:51,764 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 58 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:51,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 365 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 07:25:51,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-09 07:25:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2024-11-09 07:25:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 125 states have (on average 1.392) internal successors, (174), 126 states have internal predecessors, (174), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 07:25:51,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 208 transitions. [2024-11-09 07:25:51,781 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 208 transitions. Word has length 121 [2024-11-09 07:25:51,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:51,782 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 208 transitions. [2024-11-09 07:25:51,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:25:51,782 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 208 transitions. [2024-11-09 07:25:51,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 07:25:51,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:51,784 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:51,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:25:51,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:51,985 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:51,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:51,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1874624741, now seen corresponding path program 1 times [2024-11-09 07:25:51,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:25:51,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982589118] [2024-11-09 07:25:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:51,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:25:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:25:51,990 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:25:51,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 07:25:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:52,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:25:52,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:52,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:25:52,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:25:52,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 43 [2024-11-09 07:25:54,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:25:54,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 19 [2024-11-09 07:25:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:25:54,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:54,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:25:54,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982589118] [2024-11-09 07:25:54,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982589118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:54,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:54,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:25:54,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335814806] [2024-11-09 07:25:54,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:54,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:25:54,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:25:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:25:54,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-09 07:25:54,667 INFO L87 Difference]: Start difference. First operand 145 states and 208 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:25:56,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:59,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:01,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:03,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:05,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:07,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:09,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:11,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:13,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:13,957 INFO L93 Difference]: Finished difference Result 294 states and 418 transitions. [2024-11-09 07:26:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:26:13,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 121 [2024-11-09 07:26:13,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:13,961 INFO L225 Difference]: With dead ends: 294 [2024-11-09 07:26:13,961 INFO L226 Difference]: Without dead ends: 152 [2024-11-09 07:26:13,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2024-11-09 07:26:13,962 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 105 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 14 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:13,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 401 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 247 Invalid, 9 Unknown, 0 Unchecked, 19.2s Time] [2024-11-09 07:26:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-09 07:26:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 111. [2024-11-09 07:26:13,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 93 states have (on average 1.3655913978494623) internal successors, (127), 93 states have internal predecessors, (127), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:26:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 157 transitions. [2024-11-09 07:26:13,977 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 157 transitions. Word has length 121 [2024-11-09 07:26:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:13,977 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 157 transitions. [2024-11-09 07:26:13,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:26:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2024-11-09 07:26:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 07:26:13,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:13,980 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:13,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 07:26:14,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:14,181 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:26:14,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1833536541, now seen corresponding path program 1 times [2024-11-09 07:26:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:26:14,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058543496] [2024-11-09 07:26:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:14,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:14,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:26:14,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:26:14,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 07:26:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:14,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:26:14,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:14,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:26:15,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:15,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 34 [2024-11-09 07:26:15,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:15,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 16 [2024-11-09 07:26:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:26:15,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:26:15,852 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:26:15,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058543496] [2024-11-09 07:26:15,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058543496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:15,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:26:15,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 07:26:15,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109418950] [2024-11-09 07:26:15,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:15,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:26:15,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:26:15,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:26:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:26:15,855 INFO L87 Difference]: Start difference. First operand 111 states and 157 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:26:20,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:26:22,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:26:24,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:26:26,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:26,869 INFO L93 Difference]: Finished difference Result 254 states and 360 transitions. [2024-11-09 07:26:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:26:26,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 121 [2024-11-09 07:26:26,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:26,874 INFO L225 Difference]: With dead ends: 254 [2024-11-09 07:26:26,875 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 07:26:26,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:26:26,876 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 42 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:26,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 587 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2024-11-09 07:26:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 07:26:26,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2024-11-09 07:26:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.3608247422680413) internal successors, (132), 97 states have internal predecessors, (132), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:26:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 162 transitions. [2024-11-09 07:26:26,889 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 162 transitions. Word has length 121 [2024-11-09 07:26:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:26,890 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 162 transitions. [2024-11-09 07:26:26,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:26:26,890 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 162 transitions. [2024-11-09 07:26:26,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 07:26:26,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:26,892 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:26,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 07:26:27,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:27,093 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:26:27,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:27,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1035775661, now seen corresponding path program 1 times [2024-11-09 07:26:27,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:26:27,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781019672] [2024-11-09 07:26:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:27,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:27,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:26:27,096 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:26:27,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 07:26:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:27,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:26:27,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:27,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 07:26:27,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2024-11-09 07:26:27,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:27,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 43 [2024-11-09 07:26:29,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:29,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 41 [2024-11-09 07:26:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:26:29,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:26:29,783 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:26:29,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781019672] [2024-11-09 07:26:29,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781019672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:29,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:26:29,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:26:29,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835712117] [2024-11-09 07:26:29,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:29,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:26:29,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:26:29,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:26:29,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=29, Unknown=1, NotChecked=0, Total=42 [2024-11-09 07:26:29,786 INFO L87 Difference]: Start difference. First operand 115 states and 162 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:26:32,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:34,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:36,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:38,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:40,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:41,535 INFO L93 Difference]: Finished difference Result 317 states and 449 transitions. [2024-11-09 07:26:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:26:41,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-09 07:26:41,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:41,539 INFO L225 Difference]: With dead ends: 317 [2024-11-09 07:26:41,539 INFO L226 Difference]: Without dead ends: 205 [2024-11-09 07:26:41,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-11-09 07:26:41,540 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 166 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 55 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:41,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 777 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 346 Invalid, 5 Unknown, 0 Unchecked, 11.6s Time] [2024-11-09 07:26:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-09 07:26:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 127. [2024-11-09 07:26:41,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 07:26:41,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 180 transitions. [2024-11-09 07:26:41,570 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 180 transitions. Word has length 122 [2024-11-09 07:26:41,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:41,574 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 180 transitions. [2024-11-09 07:26:41,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:26:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2024-11-09 07:26:41,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 07:26:41,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:41,580 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:41,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 07:26:41,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:41,781 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:26:41,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash 632954350, now seen corresponding path program 1 times [2024-11-09 07:26:41,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:26:41,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737005493] [2024-11-09 07:26:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:41,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:41,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:26:41,787 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:26:41,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 07:26:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:42,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 07:26:42,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:42,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:26:42,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 07:26:42,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 07:26:42,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2024-11-09 07:26:44,248 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_44| (_ BitVec 64))) (let ((.cse0 (select |c_#memory_int| |c_~#WrapperStruct00~0.base|))) (and (= (select .cse0 (bvadd (_ bv30 32) |c_~#WrapperStruct00~0.offset|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_44|)) (= (select .cse0 (bvadd (_ bv34 32) |c_~#WrapperStruct00~0.offset|)) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_44|))))) is different from true [2024-11-09 07:26:44,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:44,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2024-11-09 07:26:44,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:44,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 50 [2024-11-09 07:26:44,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:44,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 38 [2024-11-09 07:26:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-09 07:26:44,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:26:44,871 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:26:44,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737005493] [2024-11-09 07:26:44,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737005493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:44,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:26:44,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:26:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103300980] [2024-11-09 07:26:44,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:44,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:26:44,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:26:44,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:26:44,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2024-11-09 07:26:44,873 INFO L87 Difference]: Start difference. First operand 127 states and 180 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 07:26:47,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:49,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:51,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:52,247 INFO L93 Difference]: Finished difference Result 364 states and 512 transitions. [2024-11-09 07:26:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:26:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2024-11-09 07:26:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:52,250 INFO L225 Difference]: With dead ends: 364 [2024-11-09 07:26:52,250 INFO L226 Difference]: Without dead ends: 240 [2024-11-09 07:26:52,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2024-11-09 07:26:52,251 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 69 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 290 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:52,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 492 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 277 Invalid, 3 Unknown, 290 Unchecked, 7.2s Time] [2024-11-09 07:26:52,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-09 07:26:52,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 237. [2024-11-09 07:26:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 207 states have (on average 1.3719806763285025) internal successors, (284), 208 states have internal predecessors, (284), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 07:26:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 332 transitions. [2024-11-09 07:26:52,283 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 332 transitions. Word has length 122 [2024-11-09 07:26:52,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:52,283 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 332 transitions. [2024-11-09 07:26:52,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 07:26:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 332 transitions. [2024-11-09 07:26:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 07:26:52,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:52,286 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:52,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:26:52,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:52,487 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:26:52,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:52,487 INFO L85 PathProgramCache]: Analyzing trace with hash 773074054, now seen corresponding path program 1 times [2024-11-09 07:26:52,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:26:52,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335329048] [2024-11-09 07:26:52,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:52,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:26:52,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:26:52,489 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:26:52,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 07:26:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:52,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:26:52,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:53,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:26:53,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:53,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 44 [2024-11-09 07:26:56,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:26:56,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 20 [2024-11-09 07:26:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:26:56,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:26:56,367 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:26:56,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335329048] [2024-11-09 07:26:56,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335329048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:56,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:26:56,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 07:26:56,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490743599] [2024-11-09 07:26:56,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:56,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:26:56,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:26:56,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:26:56,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2024-11-09 07:26:56,370 INFO L87 Difference]: Start difference. First operand 237 states and 332 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:26:59,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:01,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:03,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:27:05,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:07,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:09,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:12,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:27:14,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:16,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:27:18,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:20,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:20,489 INFO L93 Difference]: Finished difference Result 534 states and 747 transitions. [2024-11-09 07:27:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:27:20,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-09 07:27:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:20,497 INFO L225 Difference]: With dead ends: 534 [2024-11-09 07:27:20,498 INFO L226 Difference]: Without dead ends: 300 [2024-11-09 07:27:20,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-11-09 07:27:20,499 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 79 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:20,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 508 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 10 Unknown, 0 Unchecked, 23.9s Time] [2024-11-09 07:27:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-09 07:27:20,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 237. [2024-11-09 07:27:20,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 207 states have (on average 1.3719806763285025) internal successors, (284), 208 states have internal predecessors, (284), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 07:27:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 332 transitions. [2024-11-09 07:27:20,523 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 332 transitions. Word has length 122 [2024-11-09 07:27:20,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:20,523 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 332 transitions. [2024-11-09 07:27:20,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:27:20,524 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 332 transitions. [2024-11-09 07:27:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 07:27:20,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:20,526 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:20,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 07:27:20,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:27:20,727 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:20,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash -631380410, now seen corresponding path program 1 times [2024-11-09 07:27:20,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:27:20,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875032781] [2024-11-09 07:27:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:20,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:27:20,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:27:20,729 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:27:20,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 07:27:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:21,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:27:21,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:21,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:27:21,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:27:21,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 44 [2024-11-09 07:27:24,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:27:24,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 20 [2024-11-09 07:27:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:27:24,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:27:24,805 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:27:24,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875032781] [2024-11-09 07:27:24,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875032781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:24,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:24,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 07:27:24,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803716503] [2024-11-09 07:27:24,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:24,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:27:24,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:27:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:27:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2024-11-09 07:27:24,807 INFO L87 Difference]: Start difference. First operand 237 states and 332 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:27:28,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:31,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:33,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:27:35,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:37,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:39,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:41,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:27:43,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:45,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:27:48,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:50,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:50,778 INFO L93 Difference]: Finished difference Result 534 states and 747 transitions. [2024-11-09 07:27:50,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:27:50,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-09 07:27:50,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:50,783 INFO L225 Difference]: With dead ends: 534 [2024-11-09 07:27:50,784 INFO L226 Difference]: Without dead ends: 300 [2024-11-09 07:27:50,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-11-09 07:27:50,789 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 78 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:50,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 588 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 457 Invalid, 10 Unknown, 0 Unchecked, 25.7s Time] [2024-11-09 07:27:50,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-09 07:27:50,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 237. [2024-11-09 07:27:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 207 states have (on average 1.3719806763285025) internal successors, (284), 208 states have internal predecessors, (284), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 07:27:50,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 332 transitions. [2024-11-09 07:27:50,816 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 332 transitions. Word has length 122 [2024-11-09 07:27:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:50,817 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 332 transitions. [2024-11-09 07:27:50,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:27:50,819 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 332 transitions. [2024-11-09 07:27:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 07:27:50,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:50,822 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:50,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-09 07:27:51,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:27:51,023 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:51,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:51,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1172483984, now seen corresponding path program 1 times [2024-11-09 07:27:51,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:27:51,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554363554] [2024-11-09 07:27:51,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:51,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:27:51,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:27:51,027 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:27:51,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 07:27:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:51,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:27:51,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:51,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:27:51,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:27:51,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 34 [2024-11-09 07:27:51,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:27:51,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 44 [2024-11-09 07:27:54,281 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:27:54,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 20 [2024-11-09 07:27:54,483 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:27:54,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:27:54,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:27:54,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554363554] [2024-11-09 07:27:54,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554363554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:54,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:54,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:27:54,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512000226] [2024-11-09 07:27:54,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:54,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:27:54,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:27:54,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:27:54,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-09 07:27:54,485 INFO L87 Difference]: Start difference. First operand 237 states and 332 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:27:57,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:59,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:01,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:03,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:05,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:07,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:09,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:11,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:13,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:15,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:17,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:19,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:21,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:23,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:25,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:27,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:29,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:31,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:33,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:35,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:37,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:39,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:42,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:44,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:46,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:48,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:50,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:52,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:54,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:28:56,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:58,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:01,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:03,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:03,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:03,862 INFO L93 Difference]: Finished difference Result 524 states and 739 transitions. [2024-11-09 07:29:03,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:29:03,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-09 07:29:03,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:03,869 INFO L225 Difference]: With dead ends: 524 [2024-11-09 07:29:03,869 INFO L226 Difference]: Without dead ends: 290 [2024-11-09 07:29:03,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2024-11-09 07:29:03,871 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 78 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:03,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 424 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 33 Unknown, 0 Unchecked, 69.1s Time] [2024-11-09 07:29:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-09 07:29:03,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 257. [2024-11-09 07:29:03,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 227 states have (on average 1.3656387665198237) internal successors, (310), 228 states have internal predecessors, (310), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 07:29:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 358 transitions. [2024-11-09 07:29:03,890 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 358 transitions. Word has length 122 [2024-11-09 07:29:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:03,891 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 358 transitions. [2024-11-09 07:29:03,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:29:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 358 transitions. [2024-11-09 07:29:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 07:29:03,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:03,893 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:03,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:29:04,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:29:04,094 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:29:04,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:04,094 INFO L85 PathProgramCache]: Analyzing trace with hash -492425614, now seen corresponding path program 1 times [2024-11-09 07:29:04,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:29:04,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037779616] [2024-11-09 07:29:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:04,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:29:04,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:29:04,095 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:29:04,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 07:29:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:04,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 07:29:04,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:04,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:29:04,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-09 07:29:04,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-09 07:29:04,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-09 07:29:06,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:29:06,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2024-11-09 07:29:06,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:29:06,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 70 [2024-11-09 07:29:09,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:29:09,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 46 [2024-11-09 07:29:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-09 07:29:09,430 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:29:09,430 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:29:09,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037779616] [2024-11-09 07:29:09,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037779616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:09,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:29:09,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 07:29:09,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716874731] [2024-11-09 07:29:09,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:09,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:29:09,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:29:09,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:29:09,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2024-11-09 07:29:09,432 INFO L87 Difference]: Start difference. First operand 257 states and 358 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 07:29:12,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:14,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:16,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:18,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:20,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:22,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:24,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:26,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:28,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:30,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:32,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:34,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:36,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:38,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:40,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:40,346 INFO L93 Difference]: Finished difference Result 613 states and 854 transitions. [2024-11-09 07:29:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:29:40,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 122 [2024-11-09 07:29:40,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:40,353 INFO L225 Difference]: With dead ends: 613 [2024-11-09 07:29:40,353 INFO L226 Difference]: Without dead ends: 359 [2024-11-09 07:29:40,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=42, Invalid=88, Unknown=2, NotChecked=0, Total=132 [2024-11-09 07:29:40,358 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 265 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 56 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:40,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 355 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 419 Invalid, 14 Unknown, 0 Unchecked, 30.6s Time] [2024-11-09 07:29:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-09 07:29:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 253. [2024-11-09 07:29:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 223 states have (on average 1.3632286995515694) internal successors, (304), 225 states have internal predecessors, (304), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 07:29:40,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 352 transitions. [2024-11-09 07:29:40,398 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 352 transitions. Word has length 122 [2024-11-09 07:29:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:40,399 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 352 transitions. [2024-11-09 07:29:40,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 07:29:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 352 transitions. [2024-11-09 07:29:40,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:29:40,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:40,402 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:40,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-09 07:29:40,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:29:40,603 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:29:40,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1581319890, now seen corresponding path program 1 times [2024-11-09 07:29:40,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:29:40,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150247686] [2024-11-09 07:29:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:40,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:29:40,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:29:40,609 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:29:40,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-09 07:29:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:41,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:29:41,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:41,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:29:41,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:29:41,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 54 [2024-11-09 07:29:44,656 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:29:44,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 24 [2024-11-09 07:29:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:29:44,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:29:44,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:29:44,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150247686] [2024-11-09 07:29:44,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150247686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:44,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:29:44,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 07:29:44,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727428240] [2024-11-09 07:29:44,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:44,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:29:44,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:29:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:29:44,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2024-11-09 07:29:44,997 INFO L87 Difference]: Start difference. First operand 253 states and 352 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:29:50,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:52,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:54,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:29:56,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:58,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:00,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:03,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:05,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:07,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:09,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:14,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:30:14,910 INFO L93 Difference]: Finished difference Result 566 states and 787 transitions. [2024-11-09 07:30:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:30:14,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 123 [2024-11-09 07:30:14,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:30:14,918 INFO L225 Difference]: With dead ends: 566 [2024-11-09 07:30:14,918 INFO L226 Difference]: Without dead ends: 316 [2024-11-09 07:30:14,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-11-09 07:30:14,921 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 39 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:30:14,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 729 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 613 Invalid, 10 Unknown, 0 Unchecked, 29.6s Time] [2024-11-09 07:30:14,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-09 07:30:14,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 253. [2024-11-09 07:30:14,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 223 states have (on average 1.3632286995515694) internal successors, (304), 225 states have internal predecessors, (304), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-09 07:30:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 352 transitions. [2024-11-09 07:30:14,952 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 352 transitions. Word has length 123 [2024-11-09 07:30:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:14,953 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 352 transitions. [2024-11-09 07:30:14,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:30:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 352 transitions. [2024-11-09 07:30:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:30:14,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:14,956 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:30:14,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-09 07:30:15,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:30:15,158 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:30:15,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1433783728, now seen corresponding path program 1 times [2024-11-09 07:30:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:30:15,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303064065] [2024-11-09 07:30:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:15,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:30:15,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:30:15,164 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:30:15,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-09 07:30:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:15,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 07:30:15,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:30:15,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 78 [2024-11-09 07:30:15,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 93 [2024-11-09 07:30:16,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 97 [2024-11-09 07:30:17,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 101 [2024-11-09 07:30:18,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 105 [2024-11-09 07:30:20,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 109 [2024-11-09 07:30:22,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 107 [2024-11-09 07:30:24,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 112 [2024-11-09 07:30:27,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 121 [2024-11-09 07:30:32,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 118 [2024-11-09 07:30:33,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 130 [2024-11-09 07:30:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 384 refuted. 8 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 07:30:33,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:30:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:30:35,068 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:30:35,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303064065] [2024-11-09 07:30:35,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303064065] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:30:35,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:30:35,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 18 [2024-11-09 07:30:35,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836961000] [2024-11-09 07:30:35,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:30:35,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:30:35,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:30:35,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:30:35,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=211, Unknown=1, NotChecked=0, Total=306 [2024-11-09 07:30:35,071 INFO L87 Difference]: Start difference. First operand 253 states and 352 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:30:37,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:30:37,955 INFO L93 Difference]: Finished difference Result 748 states and 1034 transitions. [2024-11-09 07:30:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:30:37,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 123 [2024-11-09 07:30:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:30:37,960 INFO L225 Difference]: With dead ends: 748 [2024-11-09 07:30:37,960 INFO L226 Difference]: Without dead ends: 498 [2024-11-09 07:30:37,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=124, Invalid=295, Unknown=1, NotChecked=0, Total=420 [2024-11-09 07:30:37,963 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 202 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:30:37,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 291 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 07:30:37,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-09 07:30:38,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 463. [2024-11-09 07:30:38,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 404 states have (on average 1.3465346534653466) internal successors, (544), 408 states have internal predecessors, (544), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 07:30:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 640 transitions. [2024-11-09 07:30:38,035 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 640 transitions. Word has length 123 [2024-11-09 07:30:38,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:38,036 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 640 transitions. [2024-11-09 07:30:38,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:30:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 640 transitions. [2024-11-09 07:30:38,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:30:38,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:38,041 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:30:38,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-09 07:30:38,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:30:38,242 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:30:38,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:38,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1745424078, now seen corresponding path program 1 times [2024-11-09 07:30:38,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:30:38,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425269889] [2024-11-09 07:30:38,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:38,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:30:38,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:30:38,244 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:30:38,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 07:30:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:38,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:30:38,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:30:38,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:30:39,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:30:39,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 54 [2024-11-09 07:30:42,312 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:30:42,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 24 [2024-11-09 07:30:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-09 07:30:42,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:30:42,742 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:30:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425269889] [2024-11-09 07:30:42,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425269889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:30:42,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:30:42,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 07:30:42,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117198096] [2024-11-09 07:30:42,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:30:42,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:30:42,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:30:42,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:30:42,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2024-11-09 07:30:42,744 INFO L87 Difference]: Start difference. First operand 463 states and 640 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:30:47,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:49,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:51,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:53,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:56,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:58,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:00,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:02,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:05,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:07,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:31:10,337 INFO L93 Difference]: Finished difference Result 1039 states and 1437 transitions. [2024-11-09 07:31:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:31:10,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 123 [2024-11-09 07:31:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:31:10,346 INFO L225 Difference]: With dead ends: 1039 [2024-11-09 07:31:10,346 INFO L226 Difference]: Without dead ends: 579 [2024-11-09 07:31:10,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-11-09 07:31:10,349 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 76 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:31:10,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 686 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 584 Invalid, 10 Unknown, 0 Unchecked, 27.3s Time] [2024-11-09 07:31:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-09 07:31:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 455. [2024-11-09 07:31:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 396 states have (on average 1.345959595959596) internal successors, (533), 400 states have internal predecessors, (533), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 07:31:10,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 629 transitions. [2024-11-09 07:31:10,409 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 629 transitions. Word has length 123 [2024-11-09 07:31:10,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:31:10,410 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 629 transitions. [2024-11-09 07:31:10,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-09 07:31:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 629 transitions. [2024-11-09 07:31:10,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 07:31:10,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:31:10,412 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:31:10,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-09 07:31:10,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:31:10,613 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:31:10,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:31:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash 33650091, now seen corresponding path program 1 times [2024-11-09 07:31:10,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:31:10,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024623600] [2024-11-09 07:31:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:31:10,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:31:10,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:31:10,615 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:31:10,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39006c42-b791-46dc-b4c8-d3ec07f03e7a/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process