./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire --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 59a501260da967ec7da4156f518c44b77b2b3a1718cb97e1e20f43e883a3b147 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:21,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:21,417 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:09:21,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:21,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:21,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:21,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:21,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:21,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:21,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:21,489 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:21,491 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:21,491 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:21,494 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:21,494 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:21,495 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:21,496 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:21,496 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:21,497 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:21,498 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:21,499 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:21,500 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:21,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:21,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:21,503 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:21,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:21,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:21,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:21,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:21,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:21,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:21,508 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:21,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:21,509 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:21,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:21,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:21,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:21,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:21,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:21,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:21,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:21,513 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:21,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:21,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:21,515 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:21,515 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:21,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:21,516 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_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59a501260da967ec7da4156f518c44b77b2b3a1718cb97e1e20f43e883a3b147 [2023-11-23 21:09:21,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:21,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:21,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:21,910 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:21,910 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:21,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i [2023-11-23 21:09:25,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:25,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:25,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i [2023-11-23 21:09:25,632 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data/9894518f1/59fa01bf25124684a45f8cd125ea80d2/FLAG9a572e52b [2023-11-23 21:09:25,648 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data/9894518f1/59fa01bf25124684a45f8cd125ea80d2 [2023-11-23 21:09:25,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:25,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:25,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:25,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:25,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:25,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68847f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25, skipping insertion in model container [2023-11-23 21:09:25,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:25,715 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:25,862 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i[917,930] [2023-11-23 21:09:25,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:25,927 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:25,940 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i[917,930] [2023-11-23 21:09:25,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:25,988 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:25,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25 WrapperNode [2023-11-23 21:09:25,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:25,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:25,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:25,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:25,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,049 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-23 21:09:26,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:26,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:26,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:26,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:26,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:26,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:26,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:26,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:26,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (1/1) ... [2023-11-23 21:09:26,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:26,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:26,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:26,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:26,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:26,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:26,346 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:26,352 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:26,752 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:26,924 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:26,925 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:26,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:26 BoogieIcfgContainer [2023-11-23 21:09:26,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:26,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:26,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:26,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:26,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:25" (1/3) ... [2023-11-23 21:09:26,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4325b0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:26, skipping insertion in model container [2023-11-23 21:09:26,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:25" (2/3) ... [2023-11-23 21:09:26,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4325b0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:26, skipping insertion in model container [2023-11-23 21:09:26,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:26" (3/3) ... [2023-11-23 21:09:26,945 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-53.i [2023-11-23 21:09:26,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:26,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:27,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:27,021 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72713cfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:27,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:27,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:09:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 21:09:27,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:27,039 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:27,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:27,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:27,064 INFO L85 PathProgramCache]: Analyzing trace with hash -164885180, now seen corresponding path program 1 times [2023-11-23 21:09:27,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:27,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532279277] [2023-11-23 21:09:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:27,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:09:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:28,219 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:09:28,221 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:09:28,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:09:28,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:09:28,231 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:09:28,243 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:09:28,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:09:28 BoogieIcfgContainer [2023-11-23 21:09:28,355 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:09:28,359 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:09:28,359 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:09:28,359 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:09:28,360 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:26" (3/4) ... [2023-11-23 21:09:28,365 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:09:28,366 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:09:28,368 INFO L158 Benchmark]: Toolchain (without parser) took 2710.54ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 106.8MB in the beginning and 91.6MB in the end (delta: 15.2MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2023-11-23 21:09:28,369 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 144.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:28,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.25ms. Allocated memory is still 138.4MB. Free memory was 106.8MB in the beginning and 94.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:09:28,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.11ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 91.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:28,378 INFO L158 Benchmark]: Boogie Preprocessor took 38.53ms. Allocated memory is still 138.4MB. Free memory was 91.3MB in the beginning and 90.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:28,378 INFO L158 Benchmark]: RCFGBuilder took 837.30ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 61.9MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 21:09:28,381 INFO L158 Benchmark]: TraceAbstraction took 1425.52ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 61.1MB in the beginning and 91.6MB in the end (delta: -30.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:28,381 INFO L158 Benchmark]: Witness Printer took 7.63ms. Allocated memory is still 174.1MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:28,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 144.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.25ms. Allocated memory is still 138.4MB. Free memory was 106.8MB in the beginning and 94.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.11ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 91.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.53ms. Allocated memory is still 138.4MB. Free memory was 91.3MB in the beginning and 90.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 837.30ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 61.9MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1425.52ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 61.1MB in the beginning and 91.6MB in the end (delta: -30.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 7.63ms. Allocated memory is still 174.1MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 5; [L23] unsigned long int var_1_3 = 1456677701; [L24] unsigned long int var_1_4 = 1000000000; [L25] unsigned long int var_1_5 = 1; [L26] unsigned char var_1_6 = 0; [L27] unsigned char var_1_7 = 0; [L28] unsigned char var_1_8 = 0; [L29] double var_1_9 = 256.5; [L30] double var_1_10 = 8.8; [L31] unsigned char var_1_11 = 1; [L32] unsigned short int var_1_12 = 16; [L33] unsigned long int var_1_13 = 3110219175; [L34] unsigned short int var_1_14 = 128; [L35] unsigned char var_1_15 = 1; [L36] unsigned char var_1_16 = 0; [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] FCALL updateLastVariables() [L107] CALL updateVariables() [L67] var_1_3 = __VERIFIER_nondet_ulong() [L68] CALL assume_abort_if_not(var_1_3 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1000000000, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_3 >= 1073741823) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1000000000, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L69] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1000000000, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1000000000, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L70] var_1_4 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_4 >= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_4 >= 536870911) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L72] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L73] var_1_5 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L75] CALL assume_abort_if_not(var_1_5 <= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_5 <= 536870911) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L76] var_1_7 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_8=0, var_1_9=513/2] [L78] CALL assume_abort_if_not(var_1_7 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 <= 0) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=513/2] [L79] var_1_9 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=44/5, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L81] var_1_10 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L83] var_1_11 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L85] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=3110219175, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L86] var_1_13 = __VERIFIER_nondet_ulong() [L87] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L88] CALL assume_abort_if_not(var_1_13 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 <= 4294967295) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=128, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L89] var_1_14 = __VERIFIER_nondet_ushort() [L90] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L91] CALL assume_abort_if_not(var_1_14 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_14 <= 65534) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=1, var_1_16=0, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L92] var_1_16 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=1, var_1_16=1, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=1, var_1_16=1, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L94] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=1, var_1_16=1, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=1, var_1_16=1, var_1_1=5, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L107] RET updateVariables() [L108] CALL step() [L40] var_1_6 = var_1_7 [L41] COND TRUE var_1_5 <= (var_1_13 - var_1_4) [L42] var_1_12 = ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))) [L44] COND TRUE (var_1_9 * 16.5f) > var_1_10 [L45] var_1_15 = (! var_1_11) [L49] var_1_1 = (var_1_12 + (var_1_3 - (var_1_4 - var_1_12))) [L50] signed long int stepLocal_1 = (((var_1_12) < (var_1_12)) ? (var_1_12) : (var_1_12)); [L51] unsigned long int stepLocal_0 = var_1_3; [L52] COND TRUE stepLocal_1 != ((((var_1_4) < (var_1_3)) ? (var_1_4) : (var_1_3))) [L53] COND TRUE var_1_9 == var_1_10 [L54] COND FALSE !(\read(var_1_6)) [L108] RET step() [L109] CALL, EXPR property() [L99-L100] return ((((var_1_1 == ((unsigned long int) (var_1_12 + (var_1_3 - (var_1_4 - var_1_12))))) && (var_1_6 == ((unsigned char) var_1_7))) && ((((((var_1_12) < (var_1_12)) ? (var_1_12) : (var_1_12))) != ((((var_1_4) < (var_1_3)) ? (var_1_4) : (var_1_3)))) ? ((var_1_9 == var_1_10) ? (var_1_6 ? ((var_1_3 >= var_1_12) ? (var_1_8 == ((unsigned char) (var_1_7 || var_1_11))) : (var_1_8 == ((unsigned char) var_1_7))) : 1) : 1) : (var_1_8 == ((unsigned char) var_1_11)))) && ((var_1_5 <= (var_1_13 - var_1_4)) ? (var_1_12 == ((unsigned short int) ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) : 1)) && (((var_1_9 * 16.5f) > var_1_10) ? (var_1_15 == ((unsigned char) (! var_1_11))) : (var_1_15 == ((unsigned char) (var_1_11 && var_1_16)))) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=0, var_1_16=1, var_1_1=33, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=1, var_1_12=16, var_1_13=2147483647, var_1_14=16, var_1_15=0, var_1_16=1, var_1_1=33, var_1_3=1073741824, var_1_4=1073741823, var_1_5=536870911, var_1_6=0, var_1_7=0, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 18, 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, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:09:28,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire --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 59a501260da967ec7da4156f518c44b77b2b3a1718cb97e1e20f43e883a3b147 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:31,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:31,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:09:31,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:31,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:31,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:31,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:31,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:31,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:31,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:31,318 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:31,319 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:31,319 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:31,321 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:31,322 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:31,322 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:31,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:31,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:31,324 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:31,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:31,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:31,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:31,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:31,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:31,327 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:09:31,327 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:09:31,328 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:09:31,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:31,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:31,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:31,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:31,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:09:31,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:31,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:31,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:31,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:31,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:31,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:31,333 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:09:31,334 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:31,335 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:31,335 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:31,335 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:31,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:31,336 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59a501260da967ec7da4156f518c44b77b2b3a1718cb97e1e20f43e883a3b147 [2023-11-23 21:09:31,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:31,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:31,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:31,777 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:31,777 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:31,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i [2023-11-23 21:09:34,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:35,222 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:35,223 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i [2023-11-23 21:09:35,235 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data/99fbb175e/7dc5f37b88b5484da3f5ec127660d3f7/FLAG19e1ca1fb [2023-11-23 21:09:35,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/data/99fbb175e/7dc5f37b88b5484da3f5ec127660d3f7 [2023-11-23 21:09:35,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:35,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:35,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:35,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:35,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:35,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575a9e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35, skipping insertion in model container [2023-11-23 21:09:35,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,327 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:35,513 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i[917,930] [2023-11-23 21:09:35,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:35,630 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:35,652 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-53.i[917,930] [2023-11-23 21:09:35,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:35,718 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:35,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35 WrapperNode [2023-11-23 21:09:35,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:35,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:35,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:35,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:35,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,794 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-23 21:09:35,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:35,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:35,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:35,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:35,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:35,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:35,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:35,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:35,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (1/1) ... [2023-11-23 21:09:35,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:35,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:35,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:35,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:09:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:36,055 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:36,060 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:36,540 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:36,599 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:36,599 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:36,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:36 BoogieIcfgContainer [2023-11-23 21:09:36,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:36,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:36,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:36,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:36,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:35" (1/3) ... [2023-11-23 21:09:36,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bc340a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:36, skipping insertion in model container [2023-11-23 21:09:36,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:35" (2/3) ... [2023-11-23 21:09:36,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bc340a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:36, skipping insertion in model container [2023-11-23 21:09:36,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:36" (3/3) ... [2023-11-23 21:09:36,610 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-53.i [2023-11-23 21:09:36,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:36,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:36,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:36,689 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16bafcc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:36,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:36,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:09:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 21:09:36,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:36,710 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:36,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:36,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:36,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1140265954, now seen corresponding path program 1 times [2023-11-23 21:09:36,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:36,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853077808] [2023-11-23 21:09:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:36,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:09:36,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:36,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:09:36,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:09:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:37,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:09:37,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-11-23 21:09:37,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:37,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:37,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853077808] [2023-11-23 21:09:37,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853077808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:37,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:37,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:37,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863566658] [2023-11-23 21:09:37,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:37,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:09:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:37,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:09:37,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:37,183 INFO L87 Difference]: Start difference. First operand has 48 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 21:09:37,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:37,572 INFO L93 Difference]: Finished difference Result 93 states and 164 transitions. [2023-11-23 21:09:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:09:37,582 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2023-11-23 21:09:37,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:37,589 INFO L225 Difference]: With dead ends: 93 [2023-11-23 21:09:37,590 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 21:09:37,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:37,598 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:37,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:09:37,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 21:09:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 21:09:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:09:37,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2023-11-23 21:09:37,650 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 109 [2023-11-23 21:09:37,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:37,650 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2023-11-23 21:09:37,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 21:09:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2023-11-23 21:09:37,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 21:09:37,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:37,655 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:37,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:37,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:09:37,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:37,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:37,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1514387362, now seen corresponding path program 1 times [2023-11-23 21:09:37,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:37,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219008243] [2023-11-23 21:09:37,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:37,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:09:37,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:37,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:09:37,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:09:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:38,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 21:09:38,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 80 proven. 168 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-23 21:09:40,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:40,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:40,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219008243] [2023-11-23 21:09:40,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219008243] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [828343890] [2023-11-23 21:09:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:40,409 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:40,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:09:40,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:09:40,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:09:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:41,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:09:41,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 80 proven. 168 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-23 21:09:42,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:42,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [828343890] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:09:42,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577480105] [2023-11-23 21:09:42,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:42,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:42,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:42,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:42,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07c5083-25d7-4bd9-9a13-6fdec37cb9e9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:09:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:42,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:09:42,721 INFO L285 TraceCheckSpWp]: Computing forward predicates...