./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i --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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 71fe371b3648f25840026374af24a61fcda8c56564401f21f9e8d01fae27caed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:46,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:46,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:29:46,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:46,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:46,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:46,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:46,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:46,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:46,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:46,734 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:46,734 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:46,735 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:46,735 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:29:46,736 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:46,736 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:46,737 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:29:46,737 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:29:46,738 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:46,738 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:29:46,739 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:29:46,741 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:29:46,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:46,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:29:46,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:46,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:46,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:46,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:46,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:29:46,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:46,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:29:46,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:46,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:46,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:29:46,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:46,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:46,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:46,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:46,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:46,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:46,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:46,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:29:46,760 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:29:46,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:29:46,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:46,762 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:46,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:29:46,762 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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71fe371b3648f25840026374af24a61fcda8c56564401f21f9e8d01fae27caed [2024-11-09 04:29:47,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:47,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:47,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:47,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:47,094 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:47,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i Unable to find full path for "g++" [2024-11-09 04:29:49,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:49,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:49,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-09 04:29:49,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data/c8003f542/8a1b954770a547a0a6dc61058b4d0c09/FLAG4fd71622e [2024-11-09 04:29:49,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data/c8003f542/8a1b954770a547a0a6dc61058b4d0c09 [2024-11-09 04:29:49,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:49,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:49,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:49,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:49,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:49,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:49" (1/1) ... [2024-11-09 04:29:49,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713dfbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:49, skipping insertion in model container [2024-11-09 04:29:49,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:49" (1/1) ... [2024-11-09 04:29:49,909 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:50,095 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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i[916,929] [2024-11-09 04:29:50,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:50,158 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:29:50,172 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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i[916,929] [2024-11-09 04:29:50,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:50,217 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:29:50,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50 WrapperNode [2024-11-09 04:29:50,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:50,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:50,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:29:50,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:29:50,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,284 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151 [2024-11-09 04:29:50,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:50,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:29:50,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:29:50,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:29:50,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:29:50,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:29:50,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:29:50,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:29:50,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:50,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:50,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:29:50,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:29:50,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:29:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:29:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:29:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:29:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:29:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:29:50,515 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:29:50,518 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:29:50,922 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-09 04:29:50,923 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:29:51,196 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:29:51,197 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:29:51,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:51 BoogieIcfgContainer [2024-11-09 04:29:51,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:29:51,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:29:51,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:29:51,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:29:51,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:29:49" (1/3) ... [2024-11-09 04:29:51,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc1f807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:51, skipping insertion in model container [2024-11-09 04:29:51,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50" (2/3) ... [2024-11-09 04:29:51,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc1f807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:51, skipping insertion in model container [2024-11-09 04:29:51,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:51" (3/3) ... [2024-11-09 04:29:51,211 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-09 04:29:51,231 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:29:51,231 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:29:51,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:29:51,335 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;@6025d6b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:29:51,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:29:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 04:29:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 04:29:51,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:51,350 INFO L215 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:51,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:29:51,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:51,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1950648229, now seen corresponding path program 1 times [2024-11-09 04:29:51,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:51,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940257353] [2024-11-09 04:29:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:51,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:29:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109769284] [2024-11-09 04:29:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:51,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:51,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:51,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:29:51,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:29:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:29:52,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:29:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:29:52,441 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:29:52,444 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:29:52,446 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:29:52,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:29:52,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:29:52,655 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:29:52,776 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:29:52,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:29:52 BoogieIcfgContainer [2024-11-09 04:29:52,782 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:29:52,784 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:29:52,784 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:29:52,784 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:29:52,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:51" (3/4) ... [2024-11-09 04:29:52,788 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:29:52,789 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:29:52,791 INFO L158 Benchmark]: Toolchain (without parser) took 2923.76ms. Allocated memory was 172.0MB in the beginning and 278.9MB in the end (delta: 107.0MB). Free memory was 129.4MB in the beginning and 198.4MB in the end (delta: -69.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-09 04:29:52,792 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 172.0MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:29:52,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.72ms. Allocated memory is still 172.0MB. Free memory was 128.8MB in the beginning and 114.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:29:52,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.43ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 111.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:29:52,795 INFO L158 Benchmark]: Boogie Preprocessor took 44.21ms. Allocated memory is still 172.0MB. Free memory was 111.2MB in the beginning and 109.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:29:52,796 INFO L158 Benchmark]: RCFGBuilder took 867.52ms. Allocated memory was 172.0MB in the beginning and 278.9MB in the end (delta: 107.0MB). Free memory was 109.3MB in the beginning and 243.3MB in the end (delta: -134.0MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-11-09 04:29:52,798 INFO L158 Benchmark]: TraceAbstraction took 1580.95ms. Allocated memory is still 278.9MB. Free memory was 242.7MB in the beginning and 198.4MB in the end (delta: 44.3MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2024-11-09 04:29:52,799 INFO L158 Benchmark]: Witness Printer took 5.79ms. Allocated memory is still 278.9MB. Free memory is still 198.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:29:52,801 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 172.0MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.72ms. Allocated memory is still 172.0MB. Free memory was 128.8MB in the beginning and 114.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.43ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 111.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.21ms. Allocated memory is still 172.0MB. Free memory was 111.2MB in the beginning and 109.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 867.52ms. Allocated memory was 172.0MB in the beginning and 278.9MB in the end (delta: 107.0MB). Free memory was 109.3MB in the beginning and 243.3MB in the end (delta: -134.0MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1580.95ms. Allocated memory is still 278.9MB. Free memory was 242.7MB in the beginning and 198.4MB in the end (delta: 44.3MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Witness Printer took 5.79ms. Allocated memory is still 278.9MB. Free memory is still 198.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 41, overapproximation of shiftRight at line 47, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -64; [L23] signed long int var_1_3 = 1; [L24] signed long int var_1_4 = 8; [L25] signed long int var_1_5 = 255; [L26] signed long int var_1_6 = 50; [L27] unsigned char var_1_7 = 0; [L28] unsigned long int var_1_8 = 8; [L29] unsigned char var_1_10 = 32; [L30] unsigned char var_1_11 = 5; [L31] unsigned char var_1_12 = 2; [L32] signed short int var_1_13 = 0; [L33] unsigned long int var_1_14 = 16; [L34] signed char var_1_16 = -1; [L35] signed char var_1_17 = -16; [L36] unsigned char last_1_var_1_7 = 0; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L88] last_1_var_1_7 = var_1_7 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L58] var_1_4 = __VERIFIER_nondet_long() [L59] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=255, var_1_6=50, var_1_7=0, var_1_8=8] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=255, var_1_6=50, var_1_7=0, var_1_8=8] [L60] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=255, var_1_6=50, var_1_7=0, var_1_8=8] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=255, var_1_6=50, var_1_7=0, var_1_8=8] [L61] var_1_5 = __VERIFIER_nondet_long() [L62] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=50, var_1_7=0, var_1_8=8] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=50, var_1_7=0, var_1_8=8] [L63] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=50, var_1_7=0, var_1_8=8] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=50, var_1_7=0, var_1_8=8] [L64] var_1_6 = __VERIFIER_nondet_long() [L65] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=8] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=8] [L66] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=8] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=8] [L67] var_1_8 = __VERIFIER_nondet_ulong() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=32, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L70] var_1_10 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L72] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=5, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L73] var_1_11 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L75] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=2, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L76] var_1_12 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L78] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=16, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L79] var_1_14 = __VERIFIER_nondet_ulong() [L80] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L81] CALL assume_abort_if_not(var_1_14 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_14 <= 4294967295) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L82] CALL assume_abort_if_not(var_1_14 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_14 != 0) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=-1, var_1_17=-16, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L83] var_1_17 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_17 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=-1, var_1_17=1, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_17 >= -127) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=-1, var_1_17=1, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L85] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=-1, var_1_17=1, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=-1, var_1_17=1, var_1_1=-64, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=2147483647] [L99] RET updateVariables() [L100] CALL step() [L40] var_1_1 = ((((last_1_var_1_7) < 0 ) ? -(last_1_var_1_7) : (last_1_var_1_7))) [L41] var_1_3 = ((var_1_4 - var_1_5) + ((((256.5f) < ((var_1_6 - 16.125f))) ? (256.5f) : ((var_1_6 - 16.125f))))) [L42] var_1_16 = var_1_17 [L43] EXPR var_1_16 & var_1_1 [L43] signed long int stepLocal_0 = var_1_16 & var_1_1; [L44] COND TRUE (- (3351680781u - var_1_8)) > stepLocal_0 [L45] var_1_7 = (((((var_1_10) < (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))) ? (var_1_10) : (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) + var_1_12) [L47] EXPR var_1_7 >> var_1_7 [L47] COND TRUE (var_1_16 / var_1_14) < (var_1_7 >> var_1_7) [L48] var_1_13 = ((((4 - var_1_11) < 0 ) ? -(4 - var_1_11) : (4 - var_1_11))) [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR ((var_1_1 == ((signed long int) ((((last_1_var_1_7) < 0 ) ? -(last_1_var_1_7) : (last_1_var_1_7))))) && (var_1_3 == ((signed long int) ((var_1_4 - var_1_5) + ((((256.5f) < ((var_1_6 - 16.125f))) ? (256.5f) : ((var_1_6 - 16.125f)))))))) && (((- (3351680781u - var_1_8)) > (var_1_16 & var_1_1)) ? (var_1_7 == ((unsigned char) (((((var_1_10) < (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))) ? (var_1_10) : (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) + var_1_12))) : 1) [L91] EXPR (((var_1_1 == ((signed long int) ((((last_1_var_1_7) < 0 ) ? -(last_1_var_1_7) : (last_1_var_1_7))))) && (var_1_3 == ((signed long int) ((var_1_4 - var_1_5) + ((((256.5f) < ((var_1_6 - 16.125f))) ? (256.5f) : ((var_1_6 - 16.125f)))))))) && (((- (3351680781u - var_1_8)) > (var_1_16 & var_1_1)) ? (var_1_7 == ((unsigned char) (((((var_1_10) < (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))) ? (var_1_10) : (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) + var_1_12))) : 1)) && (((var_1_16 / var_1_14) < (var_1_7 >> var_1_7)) ? (var_1_13 == ((signed short int) ((((4 - var_1_11) < 0 ) ? -(4 - var_1_11) : (4 - var_1_11))))) : ((var_1_16 >= var_1_1) ? (var_1_13 == ((signed short int) (-5 + (var_1_12 - var_1_11)))) : (var_1_13 == ((signed short int) 256)))) [L91-L92] return ((((var_1_1 == ((signed long int) ((((last_1_var_1_7) < 0 ) ? -(last_1_var_1_7) : (last_1_var_1_7))))) && (var_1_3 == ((signed long int) ((var_1_4 - var_1_5) + ((((256.5f) < ((var_1_6 - 16.125f))) ? (256.5f) : ((var_1_6 - 16.125f)))))))) && (((- (3351680781u - var_1_8)) > (var_1_16 & var_1_1)) ? (var_1_7 == ((unsigned char) (((((var_1_10) < (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))) ? (var_1_10) : (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) + var_1_12))) : 1)) && (((var_1_16 / var_1_14) < (var_1_7 >> var_1_7)) ? (var_1_13 == ((signed short int) ((((4 - var_1_11) < 0 ) ? -(4 - var_1_11) : (4 - var_1_11))))) : ((var_1_16 >= var_1_1) ? (var_1_13 == ((signed short int) (-5 + (var_1_12 - var_1_11)))) : (var_1_13 == ((signed short int) 256))))) && (var_1_16 == ((signed char) var_1_17)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=1, var_1_17=1, var_1_1=0, var_1_3=25, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=131, var_1_8=2147483647] [L19] reach_error() VAL [isInitial=1, last_1_var_1_7=0, var_1_10=4, var_1_11=-764, var_1_12=127, var_1_13=0, var_1_14=2, var_1_16=1, var_1_17=1, var_1_1=0, var_1_3=25, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=131, var_1_8=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:29:52,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 71fe371b3648f25840026374af24a61fcda8c56564401f21f9e8d01fae27caed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:55,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:55,405 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:29:55,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:55,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:55,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:55,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:55,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:55,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:55,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:55,465 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:55,465 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:55,465 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:55,466 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:55,466 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:55,467 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:55,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:55,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:29:55,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:55,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:55,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:55,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:29:55,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:55,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:29:55,474 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:29:55,474 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:29:55,474 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:55,475 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:29:55,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:55,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:29:55,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:55,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:55,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:29:55,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:55,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:55,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:55,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:55,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:55,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:29:55,480 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:29:55,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:29:55,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:55,482 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:55,483 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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71fe371b3648f25840026374af24a61fcda8c56564401f21f9e8d01fae27caed [2024-11-09 04:29:55,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:55,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:55,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:55,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:55,919 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:55,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i Unable to find full path for "g++" [2024-11-09 04:29:58,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:58,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:58,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-09 04:29:58,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data/841e6c5f7/189720fda85b4afb8a5c647975a8a5df/FLAG466868ce2 [2024-11-09 04:29:58,456 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/data/841e6c5f7/189720fda85b4afb8a5c647975a8a5df [2024-11-09 04:29:58,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:58,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:58,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:58,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:58,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:58,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:58,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f20a11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58, skipping insertion in model container [2024-11-09 04:29:58,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:58,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:58,741 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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i[916,929] [2024-11-09 04:29:58,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:58,849 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:29:58,863 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_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i[916,929] [2024-11-09 04:29:58,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:58,931 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:29:58,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58 WrapperNode [2024-11-09 04:29:58,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:58,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:58,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:29:58,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:29:58,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:58,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,009 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-09 04:29:59,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:59,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:29:59,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:29:59,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:29:59,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:29:59,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:29:59,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:29:59,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:29:59,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (1/1) ... [2024-11-09 04:29:59,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:59,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:29:59,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:29:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:29:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:29:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:29:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:29:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:29:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:29:59,247 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:29:59,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:30:03,643 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 04:30:03,643 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:30:03,658 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:30:03,659 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:30:03,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:03 BoogieIcfgContainer [2024-11-09 04:30:03,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:30:03,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:30:03,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:30:03,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:30:03,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:29:58" (1/3) ... [2024-11-09 04:30:03,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702e0196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:03, skipping insertion in model container [2024-11-09 04:30:03,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:58" (2/3) ... [2024-11-09 04:30:03,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702e0196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:03, skipping insertion in model container [2024-11-09 04:30:03,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:03" (3/3) ... [2024-11-09 04:30:03,673 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-09 04:30:03,691 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:30:03,691 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:30:03,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:30:03,769 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;@33c37c8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:30:03,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:30:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 04:30:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 04:30:03,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:03,800 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:03,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:30:03,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:03,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1506442576, now seen corresponding path program 1 times [2024-11-09 04:30:03,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:03,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252121352] [2024-11-09 04:30:03,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:03,817 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 04:30:03,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:03,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 04:30:03,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 04:30:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:04,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:30:04,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-09 04:30:04,164 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:04,165 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:04,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252121352] [2024-11-09 04:30:04,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252121352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:04,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:04,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:30:04,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085413798] [2024-11-09 04:30:04,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:04,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:30:04,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:04,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:30:04,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:30:04,197 INFO L87 Difference]: Start difference. First operand has 50 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 04:30:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:04,223 INFO L93 Difference]: Finished difference Result 93 states and 161 transitions. [2024-11-09 04:30:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:30:04,226 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 115 [2024-11-09 04:30:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:04,232 INFO L225 Difference]: With dead ends: 93 [2024-11-09 04:30:04,232 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 04:30:04,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 04:30:04,239 INFO L432 NwaCegarLoop]: 66 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, 66 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 04:30:04,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:30:04,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 04:30:04,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-09 04:30:04,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 04:30:04,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2024-11-09 04:30:04,282 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 115 [2024-11-09 04:30:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:04,282 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2024-11-09 04:30:04,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 04:30:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2024-11-09 04:30:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 04:30:04,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:04,290 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:04,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 04:30:04,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 04:30:04,491 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:30:04,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash -63788787, now seen corresponding path program 1 times [2024-11-09 04:30:04,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:04,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013664758] [2024-11-09 04:30:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:04,493 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 04:30:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:04,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 04:30:04,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 04:30:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:04,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 04:30:04,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 340 proven. 33 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-09 04:30:05,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:30:05,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:05,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013664758] [2024-11-09 04:30:05,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013664758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:05,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1644056291] [2024-11-09 04:30:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:05,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:30:05,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:30:05,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:30:05,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 04:30:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:06,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:30:06,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 340 proven. 33 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-09 04:30:08,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:30:08,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1644056291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:08,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607425929] [2024-11-09 04:30:08,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:08,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:08,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:08,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:08,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:30:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:08,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:30:08,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:09,670 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 340 proven. 33 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-09 04:30:09,670 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:30:09,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607425929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:09,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:30:09,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 12 [2024-11-09 04:30:09,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677443767] [2024-11-09 04:30:09,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:30:09,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:30:09,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:09,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:30:09,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:30:09,847 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-09 04:30:14,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:16,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:18,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:20,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:22,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:30:24,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:27,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:29,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:31,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:30:33,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:35,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:30:35,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:35,486 INFO L93 Difference]: Finished difference Result 149 states and 207 transitions. [2024-11-09 04:30:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 04:30:35,505 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 116 [2024-11-09 04:30:35,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:35,508 INFO L225 Difference]: With dead ends: 149 [2024-11-09 04:30:35,508 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 04:30:35,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2024-11-09 04:30:35,511 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 60 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 70 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:35,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 219 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 298 Invalid, 9 Unknown, 0 Unchecked, 24.8s Time] [2024-11-09 04:30:35,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 04:30:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 50. [2024-11-09 04:30:35,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 04:30:35,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2024-11-09 04:30:35,534 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 116 [2024-11-09 04:30:35,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:35,535 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2024-11-09 04:30:35,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-09 04:30:35,536 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2024-11-09 04:30:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 04:30:35,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:35,542 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:35,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 04:30:35,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-09 04:30:35,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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)] Ended with exit code 0 [2024-11-09 04:30:36,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 04:30:36,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:30:36,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1838796149, now seen corresponding path program 1 times [2024-11-09 04:30:36,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486819176] [2024-11-09 04:30:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:36,145 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 04:30:36,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:36,147 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/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 04:30:36,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 04:30:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:30:36,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:30:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:30:36,629 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-09 04:30:36,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1714535375] [2024-11-09 04:30:36,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:36,630 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:30:36,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:30:36,631 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:30:36,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca7c8bb-4de3-4fd8-972e-8579bb84bdc0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 04:30:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:37,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:30:37,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:19,352 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse0 (fp.lt .cse2 .cse3)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse0 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse2)) c_~var_1_3~0)) (and (not .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse3)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle ((_ zero_extend 24) c_~var_1_12~0) (_ bv127 32)) (bvsle ((_ zero_extend 24) c_~var_1_11~0) (_ bv127 32)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv127 32))) is different from false [2024-11-09 04:31:21,370 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse0 (fp.lt .cse2 .cse3)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse0 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse2)) c_~var_1_3~0)) (and (not .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse3)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle ((_ zero_extend 24) c_~var_1_12~0) (_ bv127 32)) (bvsle ((_ zero_extend 24) c_~var_1_11~0) (_ bv127 32)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv127 32))) is different from true [2024-11-09 04:32:18,046 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_12~0)) (.cse3 ((_ zero_extend 24) c_~var_1_11~0)) (.cse0 ((_ zero_extend 24) c_~var_1_10~0))) (and (let ((.cse2 (bvslt .cse0 .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse0 .cse1)) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2)))) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse7 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse4 (fp.lt .cse6 .cse7)) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse4 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse6)) c_~var_1_3~0)) (and (not .cse4) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse7)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle .cse1 (_ bv127 32)) (bvsle .cse3 (_ bv127 32)) (bvsle .cse0 (_ bv127 32)))) is different from false [2024-11-09 04:32:20,070 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_12~0)) (.cse3 ((_ zero_extend 24) c_~var_1_11~0)) (.cse0 ((_ zero_extend 24) c_~var_1_10~0))) (and (let ((.cse2 (bvslt .cse0 .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse0 .cse1)) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2)))) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse7 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse4 (fp.lt .cse6 .cse7)) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse4 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse6)) c_~var_1_3~0)) (and (not .cse4) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse7)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle .cse1 (_ bv127 32)) (bvsle .cse3 (_ bv127 32)) (bvsle .cse0 (_ bv127 32)))) is different from true [2024-11-09 04:33:18,944 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_12~0)) (.cse3 ((_ zero_extend 24) c_~var_1_11~0)) (.cse0 ((_ zero_extend 24) c_~var_1_10~0))) (and (let ((.cse2 (bvslt .cse0 .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse0 .cse1)) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2)))) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse7 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse4 (fp.lt .cse6 .cse7)) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse4 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse6)) c_~var_1_3~0)) (and (not .cse4) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse7)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle .cse1 (_ bv127 32)) (bvsle .cse3 (_ bv127 32)) (bvsle .cse0 (_ bv127 32)) (not (bvult (bvudiv ((_ sign_extend 24) c_~var_1_16~0) c_~var_1_14~0) (let ((.cse8 ((_ zero_extend 24) c_~var_1_7~0))) (bvashr .cse8 .cse8)))))) is different from false [2024-11-09 04:33:20,967 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_12~0)) (.cse3 ((_ zero_extend 24) c_~var_1_11~0)) (.cse0 ((_ zero_extend 24) c_~var_1_10~0))) (and (let ((.cse2 (bvslt .cse0 .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse0 .cse1)) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2)))) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse7 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse4 (fp.lt .cse6 .cse7)) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse4 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse6)) c_~var_1_3~0)) (and (not .cse4) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse7)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle .cse1 (_ bv127 32)) (bvsle .cse3 (_ bv127 32)) (bvsle .cse0 (_ bv127 32)) (not (bvult (bvudiv ((_ sign_extend 24) c_~var_1_16~0) c_~var_1_14~0) (let ((.cse8 ((_ zero_extend 24) c_~var_1_7~0))) (bvashr .cse8 .cse8)))))) is different from true [2024-11-09 04:34:28,377 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_12~0)) (.cse3 ((_ zero_extend 24) c_~var_1_11~0)) (.cse0 ((_ zero_extend 24) c_~var_1_10~0)) (.cse8 ((_ sign_extend 24) c_~var_1_16~0))) (and (let ((.cse2 (bvslt .cse0 .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse0 .cse1)) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2)))) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse7 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse4 (fp.lt .cse6 .cse7)) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse4 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse6)) c_~var_1_3~0)) (and (not .cse4) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse7)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle .cse1 (_ bv127 32)) (= c_~var_1_13~0 ((_ extract 15 0) (bvadd (bvneg .cse3) (_ bv4294967291 32) .cse1))) (bvsle .cse3 (_ bv127 32)) (bvsle .cse0 (_ bv127 32)) (bvsge .cse8 c_~var_1_1~0) (not (bvult (bvudiv .cse8 c_~var_1_14~0) (let ((.cse9 ((_ zero_extend 24) c_~var_1_7~0))) (bvashr .cse9 .cse9)))))) is different from false [2024-11-09 04:34:30,399 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_12~0)) (.cse3 ((_ zero_extend 24) c_~var_1_11~0)) (.cse0 ((_ zero_extend 24) c_~var_1_10~0)) (.cse8 ((_ sign_extend 24) c_~var_1_16~0))) (and (let ((.cse2 (bvslt .cse0 .cse3))) (or (and (= ((_ extract 7 0) (bvadd .cse0 .cse1)) c_~var_1_7~0) .cse2) (and (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse1 .cse3))) (not .cse2)))) (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse7 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse4 (fp.lt .cse6 .cse7)) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse4 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse6)) c_~var_1_3~0)) (and (not .cse4) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse5 .cse7)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle .cse1 (_ bv127 32)) (= c_~var_1_13~0 ((_ extract 15 0) (bvadd (bvneg .cse3) (_ bv4294967291 32) .cse1))) (bvsle .cse3 (_ bv127 32)) (bvsle .cse0 (_ bv127 32)) (bvsge .cse8 c_~var_1_1~0) (not (bvult (bvudiv .cse8 c_~var_1_14~0) (let ((.cse9 ((_ zero_extend 24) c_~var_1_7~0))) (bvashr .cse9 .cse9)))))) is different from true