./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 2980b1b16ee9f15d1388d11184adc9254e71941c1199f3e0cffbe3b54529bc8f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:14:46,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:14:46,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:14:46,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:14:46,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:14:46,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:14:46,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:14:46,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:14:46,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:14:46,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:14:46,480 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:14:46,481 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:14:46,481 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:14:46,482 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:14:46,482 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:14:46,483 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:14:46,483 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:14:46,483 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:14:46,484 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:14:46,484 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:14:46,485 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:14:46,486 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:14:46,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:14:46,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:14:46,488 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:14:46,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:14:46,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:14:46,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:14:46,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:14:46,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:14:46,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:14:46,491 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:14:46,491 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:14:46,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:14:46,492 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:14:46,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:14:46,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:14:46,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:14:46,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:14:46,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:14:46,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:14:46,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:14:46,499 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:14:46,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:14:46,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:14:46,500 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:14:46,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:14:46,500 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_4c5820c2-7979-4011-88eb-3ffa8cb76251/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2980b1b16ee9f15d1388d11184adc9254e71941c1199f3e0cffbe3b54529bc8f [2024-11-09 01:14:46,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:14:46,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:14:46,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:14:46,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:14:46,789 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:14:46,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_1092c.c Unable to find full path for "g++" [2024-11-09 01:14:48,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:14:49,103 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:14:49,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/sv-benchmarks/c/float-newlib/float_req_bl_1092c.c [2024-11-09 01:14:49,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data/c3926aa73/5871ab51850b454ca65b68c81dd9ca6e/FLAG8e97d53a1 [2024-11-09 01:14:49,131 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data/c3926aa73/5871ab51850b454ca65b68c81dd9ca6e [2024-11-09 01:14:49,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:14:49,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:14:49,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:14:49,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:14:49,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:14:49,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6676346f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49, skipping insertion in model container [2024-11-09 01:14:49,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:14:49,433 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_4c5820c2-7979-4011-88eb-3ffa8cb76251/sv-benchmarks/c/float-newlib/float_req_bl_1092c.c[1788,1801] [2024-11-09 01:14:49,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:14:49,451 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:14:49,491 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_4c5820c2-7979-4011-88eb-3ffa8cb76251/sv-benchmarks/c/float-newlib/float_req_bl_1092c.c[1788,1801] [2024-11-09 01:14:49,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:14:49,513 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:14:49,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49 WrapperNode [2024-11-09 01:14:49,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:14:49,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:14:49,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:14:49,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:14:49,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,570 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 119 [2024-11-09 01:14:49,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:14:49,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:14:49,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:14:49,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:14:49,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:14:49,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:14:49,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:14:49,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:14:49,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (1/1) ... [2024-11-09 01:14:49,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:14:49,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:49,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:14:49,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:14:49,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:14:49,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:14:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:14:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 01:14:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:14:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 01:14:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:14:49,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:14:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:14:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:14:49,826 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:14:49,830 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:14:50,156 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 01:14:50,157 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:14:50,374 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:14:50,374 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-09 01:14:50,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:50 BoogieIcfgContainer [2024-11-09 01:14:50,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:14:50,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:14:50,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:14:50,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:14:50,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:14:49" (1/3) ... [2024-11-09 01:14:50,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0bbd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:14:50, skipping insertion in model container [2024-11-09 01:14:50,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:49" (2/3) ... [2024-11-09 01:14:50,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0bbd7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:14:50, skipping insertion in model container [2024-11-09 01:14:50,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:50" (3/3) ... [2024-11-09 01:14:50,389 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c.c [2024-11-09 01:14:50,408 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:14:50,408 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:14:50,472 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:14:50,479 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;@5d402800, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:14:50,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:14:50,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:50,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 01:14:50,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:50,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:50,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:50,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:50,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2120021727, now seen corresponding path program 1 times [2024-11-09 01:14:50,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:50,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101003514] [2024-11-09 01:14:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:50,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:50,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:50,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101003514] [2024-11-09 01:14:50,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101003514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:14:50,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:14:50,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:14:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613880131] [2024-11-09 01:14:50,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:14:50,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:14:50,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:14:50,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:14:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:14:50,759 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:50,800 INFO L93 Difference]: Finished difference Result 37 states and 55 transitions. [2024-11-09 01:14:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:14:50,803 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 01:14:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:50,812 INFO L225 Difference]: With dead ends: 37 [2024-11-09 01:14:50,813 INFO L226 Difference]: Without dead ends: 17 [2024-11-09 01:14:50,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 01:14:50,820 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:50,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:14:50,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-09 01:14:50,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-09 01:14:50,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:50,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-09 01:14:50,860 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2024-11-09 01:14:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:50,861 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-09 01:14:50,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:50,862 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-09 01:14:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 01:14:50,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:50,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:50,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:14:50,863 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:50,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:50,865 INFO L85 PathProgramCache]: Analyzing trace with hash -69572129, now seen corresponding path program 1 times [2024-11-09 01:14:50,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:50,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342189170] [2024-11-09 01:14:50,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:50,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:14:50,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 01:14:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:14:51,018 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 01:14:51,018 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 01:14:51,020 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:14:51,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:14:51,025 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 01:14:51,044 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:14:51,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:14:51 BoogieIcfgContainer [2024-11-09 01:14:51,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:14:51,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:14:51,049 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:14:51,049 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:14:51,049 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:50" (3/4) ... [2024-11-09 01:14:51,053 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 01:14:51,054 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:14:51,055 INFO L158 Benchmark]: Toolchain (without parser) took 1919.43ms. Allocated memory is still 172.0MB. Free memory was 135.3MB in the beginning and 123.1MB in the end (delta: 12.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-09 01:14:51,055 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 134.2MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:14:51,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.66ms. Allocated memory is still 172.0MB. Free memory was 135.1MB in the beginning and 121.9MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 01:14:51,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.66ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 119.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:14:51,057 INFO L158 Benchmark]: Boogie Preprocessor took 36.87ms. Allocated memory is still 172.0MB. Free memory was 119.8MB in the beginning and 118.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:14:51,057 INFO L158 Benchmark]: RCFGBuilder took 765.55ms. Allocated memory is still 172.0MB. Free memory was 118.3MB in the beginning and 91.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 01:14:51,059 INFO L158 Benchmark]: TraceAbstraction took 669.15ms. Allocated memory is still 172.0MB. Free memory was 91.0MB in the beginning and 123.1MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:14:51,059 INFO L158 Benchmark]: Witness Printer took 5.69ms. Allocated memory is still 172.0MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:14:51,062 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 134.2MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.66ms. Allocated memory is still 172.0MB. Free memory was 135.1MB in the beginning and 121.9MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.66ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 119.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.87ms. Allocated memory is still 172.0MB. Free memory was 119.8MB in the beginning and 118.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 765.55ms. Allocated memory is still 172.0MB. Free memory was 118.3MB in the beginning and 91.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 669.15ms. Allocated memory is still 172.0MB. Free memory was 91.0MB in the beginning and 123.1MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.69ms. Allocated memory is still 172.0MB. Free memory is still 123.1MB. 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: 83]: 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 someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; [L78] float x = 1.0f / 0.0f; [L79] CALL, EXPR ceil_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000, i0=1266679807, ix=1266679807, j0=23, x=1000000000000000000000000000011] [L25] COND FALSE !(j0 < 23) [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [\result=1000000000000000000000000000011, huge_ceil=1000000000000000000000000000000, i0=1266679807] [L79] RET, EXPR ceil_float(x) [L79] float res = ceil_float(x); [L82] CALL, EXPR isinf_float(res) [L60] __int32_t ix; VAL [huge_ceil=1000000000000000000000000000000, x=1000000000000000000000000000011] [L62] ieee_float_shape_type gf_u; [L63] gf_u.value = (x) [L64] EXPR gf_u.word [L64] (ix) = gf_u.word [L66] ix &= 0x7fffffff [L67] return ((ix) == 0x7f800000L); [L82] RET, EXPR isinf_float(res) [L82] COND TRUE !isinf_float(res) [L83] reach_error() VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 01:14:51,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 2980b1b16ee9f15d1388d11184adc9254e71941c1199f3e0cffbe3b54529bc8f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:14:53,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:14:53,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 01:14:53,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:14:53,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:14:54,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:14:54,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:14:54,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:14:54,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:14:54,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:14:54,016 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:14:54,016 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:14:54,017 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:14:54,017 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:14:54,017 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:14:54,018 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:14:54,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:14:54,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:14:54,019 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:14:54,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:14:54,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:14:54,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:14:54,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:14:54,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:14:54,027 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:14:54,027 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:14:54,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:14:54,028 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:14:54,028 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:14:54,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:14:54,029 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:14:54,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:14:54,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:14:54,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:14:54,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:14:54,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:14:54,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:14:54,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:14:54,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:14:54,032 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:14:54,033 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:14:54,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:14:54,034 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:14:54,035 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_4c5820c2-7979-4011-88eb-3ffa8cb76251/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2980b1b16ee9f15d1388d11184adc9254e71941c1199f3e0cffbe3b54529bc8f [2024-11-09 01:14:54,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:14:54,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:14:54,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:14:54,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:14:54,595 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:14:54,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_1092c.c Unable to find full path for "g++" [2024-11-09 01:14:56,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:14:57,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:14:57,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/sv-benchmarks/c/float-newlib/float_req_bl_1092c.c [2024-11-09 01:14:57,037 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data/affb522c3/4d41831140d94b2d9d0bdd53d999c28c/FLAGe5783bc7a [2024-11-09 01:14:57,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/data/affb522c3/4d41831140d94b2d9d0bdd53d999c28c [2024-11-09 01:14:57,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:14:57,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:14:57,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:14:57,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:14:57,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:14:57,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce639a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57, skipping insertion in model container [2024-11-09 01:14:57,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:14:57,343 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_4c5820c2-7979-4011-88eb-3ffa8cb76251/sv-benchmarks/c/float-newlib/float_req_bl_1092c.c[1788,1801] [2024-11-09 01:14:57,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:14:57,362 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:14:57,388 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_4c5820c2-7979-4011-88eb-3ffa8cb76251/sv-benchmarks/c/float-newlib/float_req_bl_1092c.c[1788,1801] [2024-11-09 01:14:57,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:14:57,409 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:14:57,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57 WrapperNode [2024-11-09 01:14:57,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:14:57,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:14:57,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:14:57,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:14:57,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,450 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-11-09 01:14:57,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:14:57,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:14:57,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:14:57,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:14:57,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:14:57,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:14:57,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:14:57,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:14:57,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (1/1) ... [2024-11-09 01:14:57,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:14:57,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:57,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:14:57,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:14:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:14:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:14:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:14:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 01:14:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 01:14:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:14:57,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:14:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 01:14:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 01:14:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:14:57,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:14:57,703 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:14:58,299 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-09 01:14:58,299 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:14:58,313 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:14:58,313 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-09 01:14:58,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:58 BoogieIcfgContainer [2024-11-09 01:14:58,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:14:58,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:14:58,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:14:58,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:14:58,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:14:57" (1/3) ... [2024-11-09 01:14:58,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c75fd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:14:58, skipping insertion in model container [2024-11-09 01:14:58,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:57" (2/3) ... [2024-11-09 01:14:58,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c75fd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:14:58, skipping insertion in model container [2024-11-09 01:14:58,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:58" (3/3) ... [2024-11-09 01:14:58,325 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c.c [2024-11-09 01:14:58,343 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:14:58,344 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:14:58,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:14:58,434 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;@4aa8fa77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:14:58,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:14:58,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 01:14:58,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:58,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:58,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:58,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1544312471, now seen corresponding path program 1 times [2024-11-09 01:14:58,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:14:58,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116937916] [2024-11-09 01:14:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:58,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:14:58,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:14:58,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:14:58,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:14:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:58,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 01:14:58,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:58,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:14:58,642 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:14:58,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116937916] [2024-11-09 01:14:58,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116937916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:14:58,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:14:58,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:14:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154687201] [2024-11-09 01:14:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:14:58,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:14:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:14:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:14:58,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:14:58,683 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:58,702 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2024-11-09 01:14:58,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:14:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 01:14:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:58,715 INFO L225 Difference]: With dead ends: 56 [2024-11-09 01:14:58,716 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 01:14:58,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 01:14:58,724 INFO L432 NwaCegarLoop]: 37 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, 37 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 01:14:58,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:14:58,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 01:14:58,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-09 01:14:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2024-11-09 01:14:58,771 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 12 [2024-11-09 01:14:58,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:58,771 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2024-11-09 01:14:58,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:58,773 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2024-11-09 01:14:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 01:14:58,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:58,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:58,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:14:58,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:14:58,976 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:58,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:58,977 INFO L85 PathProgramCache]: Analyzing trace with hash -803853785, now seen corresponding path program 1 times [2024-11-09 01:14:58,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:14:58,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322888748] [2024-11-09 01:14:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:58,978 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 01:14:58,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:14:58,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:14:59,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:14:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:59,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:14:59,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:59,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:14:59,560 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:14:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322888748] [2024-11-09 01:14:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322888748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:14:59,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:14:59,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:14:59,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621895879] [2024-11-09 01:14:59,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:14:59,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:14:59,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:14:59,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:14:59,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:14:59,567 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:00,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:00,355 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-09 01:15:00,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:15:00,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 01:15:00,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:00,357 INFO L225 Difference]: With dead ends: 47 [2024-11-09 01:15:00,357 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 01:15:00,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:15:00,359 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 50 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:00,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 49 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:15:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 01:15:00,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2024-11-09 01:15:00,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:00,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-11-09 01:15:00,367 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 14 [2024-11-09 01:15:00,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:00,367 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-11-09 01:15:00,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-09 01:15:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 01:15:00,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:15:00,369 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:15:00,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:00,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:00,570 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:15:00,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:15:00,574 INFO L85 PathProgramCache]: Analyzing trace with hash 5492841, now seen corresponding path program 1 times [2024-11-09 01:15:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:15:00,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804407086] [2024-11-09 01:15:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:00,575 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 01:15:00,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:15:00,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:00,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:00,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:15:00,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:15:00,931 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 15 treesize of output 1 [2024-11-09 01:15:00,937 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 42 treesize of output 26 [2024-11-09 01:15:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:01,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:15:01,106 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:15:01,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804407086] [2024-11-09 01:15:01,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804407086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:15:01,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:15:01,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:15:01,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205156812] [2024-11-09 01:15:01,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:15:01,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:15:01,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:15:01,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:15:01,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:15:01,112 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:01,711 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2024-11-09 01:15:01,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:15:01,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 01:15:01,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:01,713 INFO L225 Difference]: With dead ends: 34 [2024-11-09 01:15:01,713 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 01:15:01,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:15:01,716 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 32 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:01,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 111 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:15:01,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 01:15:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 01:15:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-11-09 01:15:01,723 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 14 [2024-11-09 01:15:01,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:01,724 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-11-09 01:15:01,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2024-11-09 01:15:01,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 01:15:01,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:15:01,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:15:01,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:15:01,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:01,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:15:01,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:15:01,931 INFO L85 PathProgramCache]: Analyzing trace with hash 608192004, now seen corresponding path program 1 times [2024-11-09 01:15:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:15:01,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291063535] [2024-11-09 01:15:01,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:01,932 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 01:15:01,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:15:01,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:01,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:02,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:15:02,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:15:02,147 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 15 treesize of output 1 [2024-11-09 01:15:02,157 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 34 treesize of output 18 [2024-11-09 01:15:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:02,293 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:15:02,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:15:02,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291063535] [2024-11-09 01:15:02,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291063535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:15:02,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:15:02,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:15:02,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147272045] [2024-11-09 01:15:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:15:02,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:15:02,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:15:02,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:15:02,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:15:02,297 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:02,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:02,416 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2024-11-09 01:15:02,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:15:02,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-09 01:15:02,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:02,419 INFO L225 Difference]: With dead ends: 25 [2024-11-09 01:15:02,419 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 01:15:02,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:15:02,421 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:02,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:15:02,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 01:15:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 01:15:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 01:15:02,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-09 01:15:02,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:02,427 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 01:15:02,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:15:02,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 01:15:02,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 01:15:02,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:15:02,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:02,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/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 01:15:02,637 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 01:15:02,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 01:15:02,709 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:15:02,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:15:02 BoogieIcfgContainer [2024-11-09 01:15:02,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:15:02,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:15:02,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:15:02,727 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:15:02,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:58" (3/4) ... [2024-11-09 01:15:02,731 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 01:15:02,741 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-09 01:15:02,741 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 01:15:02,741 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 01:15:02,742 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:15:02,922 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 01:15:02,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 01:15:02,923 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:15:02,924 INFO L158 Benchmark]: Toolchain (without parser) took 5864.90ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 46.2MB in the beginning and 91.9MB in the end (delta: -45.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-11-09 01:15:02,924 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 35.1MB in the end (delta: 103.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:15:02,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.22ms. Allocated memory is still 90.2MB. Free memory was 46.2MB in the beginning and 60.9MB in the end (delta: -14.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-09 01:15:02,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.03ms. Allocated memory is still 90.2MB. Free memory was 60.9MB in the beginning and 59.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:15:02,926 INFO L158 Benchmark]: Boogie Preprocessor took 43.26ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 57.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:15:02,926 INFO L158 Benchmark]: RCFGBuilder took 818.69ms. Allocated memory is still 90.2MB. Free memory was 57.5MB in the beginning and 43.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 01:15:02,927 INFO L158 Benchmark]: TraceAbstraction took 4408.97ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 42.5MB in the beginning and 69.3MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:15:02,928 INFO L158 Benchmark]: Witness Printer took 196.57ms. Allocated memory is still 115.3MB. Free memory was 69.3MB in the beginning and 91.9MB in the end (delta: -22.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 01:15:02,930 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 35.1MB in the end (delta: 103.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.22ms. Allocated memory is still 90.2MB. Free memory was 46.2MB in the beginning and 60.9MB in the end (delta: -14.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.03ms. Allocated memory is still 90.2MB. Free memory was 60.9MB in the beginning and 59.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.26ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 57.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 818.69ms. Allocated memory is still 90.2MB. Free memory was 57.5MB in the beginning and 43.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4408.97ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 42.5MB in the beginning and 69.3MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 196.57ms. Allocated memory is still 115.3MB. Free memory was 69.3MB in the beginning and 91.9MB in the end (delta: -22.5MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 83]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 76 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 9 QuantifiedInterpolants, 325 SizeOfPredicates, 13 NumberOfNonLiveVariables, 213 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 01:15:02,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5820c2-7979-4011-88eb-3ffa8cb76251/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE