./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50b8b3569ebc106b1fc2b1b2c57c29e886b8d65f1c4bed3a92c2da830b6206bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:50:12,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:50:12,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:50:12,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:50:12,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:50:12,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:50:12,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:50:12,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:50:12,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:50:12,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:50:12,909 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:50:12,910 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:50:12,911 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:50:12,913 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:50:12,914 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:50:12,915 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:50:12,915 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:50:12,916 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:50:12,916 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:50:12,917 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:50:12,917 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:50:12,918 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:50:12,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:50:12,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:50:12,921 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:50:12,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:50:12,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:50:12,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:50:12,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:50:12,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:50:12,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:50:12,925 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:50:12,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:50:12,926 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:50:12,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:50:12,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:50:12,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:12,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:50:12,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:50:12,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:50:12,928 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:50:12,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:50:12,929 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:50:12,930 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:50:12,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:50:12,931 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_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b8b3569ebc106b1fc2b1b2c57c29e886b8d65f1c4bed3a92c2da830b6206bd [2023-11-19 04:50:13,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:50:13,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:50:13,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:50:13,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:50:13,390 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:50:13,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i [2023-11-19 04:50:16,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:50:17,097 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:50:17,098 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i [2023-11-19 04:50:17,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data/8c7daddcf/0be9b679e492447b826f98242874e5d4/FLAG189f9496c [2023-11-19 04:50:17,123 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data/8c7daddcf/0be9b679e492447b826f98242874e5d4 [2023-11-19 04:50:17,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:50:17,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:50:17,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:17,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:50:17,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:50:17,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c061b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17, skipping insertion in model container [2023-11-19 04:50:17,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,165 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:17,347 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_83905f45-9fe6-4e14-843f-3d9df1ce0eef/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i[917,930] [2023-11-19 04:50:17,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:17,409 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:50:17,424 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_83905f45-9fe6-4e14-843f-3d9df1ce0eef/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i[917,930] [2023-11-19 04:50:17,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:17,469 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:50:17,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17 WrapperNode [2023-11-19 04:50:17,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:17,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:17,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:50:17,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:50:17,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,537 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 128 [2023-11-19 04:50:17,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:17,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:50:17,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:50:17,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:50:17,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:50:17,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:50:17,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:50:17,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:50:17,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:17,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:17,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:50:17,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:50:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:50:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:50:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:50:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:50:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:50:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:50:17,747 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:17,750 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:18,090 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:18,474 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:18,474 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:50:18,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:18 BoogieIcfgContainer [2023-11-19 04:50:18,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:18,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:18,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:18,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:18,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:50:17" (1/3) ... [2023-11-19 04:50:18,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201778a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:18, skipping insertion in model container [2023-11-19 04:50:18,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (2/3) ... [2023-11-19 04:50:18,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201778a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:18, skipping insertion in model container [2023-11-19 04:50:18,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:18" (3/3) ... [2023-11-19 04:50:18,492 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-98.i [2023-11-19 04:50:18,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:18,523 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:50:18,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:18,589 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;@33c45b31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:18,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:50:18,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:50:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 04:50:18,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:18,610 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:18,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:18,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1474727574, now seen corresponding path program 1 times [2023-11-19 04:50:18,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:18,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297122854] [2023-11-19 04:50:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:18,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:18,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:50:18,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936420324] [2023-11-19 04:50:18,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:18,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:50:18,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:18,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:50:18,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:50:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:19,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:50:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:19,564 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:50:19,569 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:50:19,571 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:50:19,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:50:19,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:50:19,804 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:50:19,809 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:50:19,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:50:19 BoogieIcfgContainer [2023-11-19 04:50:19,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:50:19,923 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:50:19,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:50:19,923 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:50:19,924 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:18" (3/4) ... [2023-11-19 04:50:19,927 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:50:19,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:50:19,930 INFO L158 Benchmark]: Toolchain (without parser) took 2801.83ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 134.7MB in the beginning and 160.2MB in the end (delta: -25.5MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,930 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 178.3MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:19,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.37ms. Allocated memory is still 178.3MB. Free memory was 134.7MB in the beginning and 122.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.62ms. Allocated memory is still 178.3MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,933 INFO L158 Benchmark]: Boogie Preprocessor took 32.65ms. Allocated memory is still 178.3MB. Free memory was 120.0MB in the beginning and 118.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,934 INFO L158 Benchmark]: RCFGBuilder took 908.94ms. Allocated memory is still 178.3MB. Free memory was 118.3MB in the beginning and 84.4MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,935 INFO L158 Benchmark]: TraceAbstraction took 1437.86ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 83.8MB in the beginning and 160.2MB in the end (delta: -76.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:19,935 INFO L158 Benchmark]: Witness Printer took 5.64ms. Allocated memory is still 213.9MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:19,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 178.3MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.37ms. Allocated memory is still 178.3MB. Free memory was 134.7MB in the beginning and 122.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.62ms. Allocated memory is still 178.3MB. Free memory was 122.1MB in the beginning and 120.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.65ms. Allocated memory is still 178.3MB. Free memory was 120.0MB in the beginning and 118.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 908.94ms. Allocated memory is still 178.3MB. Free memory was 118.3MB in the beginning and 84.4MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1437.86ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 83.8MB in the beginning and 160.2MB in the end (delta: -76.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.64ms. Allocated memory is still 213.9MB. Free memory is still 160.2MB. 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 55, overapproximation of shiftRight at line 51, overapproximation of someBinaryArithmeticDOUBLEoperation at line 41. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 4.8; [L23] double var_1_2 = 63.5; [L24] double var_1_3 = 9999999.5; [L25] double var_1_4 = 0.6; [L26] signed short int var_1_6 = 10; [L27] signed long int var_1_7 = -1; [L28] double var_1_8 = 4.4; [L29] double var_1_9 = 7.25; [L30] double var_1_10 = 7.5; [L31] double var_1_11 = 2.3; [L32] unsigned long int var_1_12 = 128; [L33] unsigned long int var_1_13 = 0; [L34] unsigned long int var_1_14 = 4078799264; [L35] unsigned long int var_1_15 = 500; [L36] unsigned long int var_1_16 = 25; [L37] unsigned long int last_1_var_1_15 = 500; [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] CALL updateLastVariables() [L94] last_1_var_1_15 = var_1_15 [L104] RET updateLastVariables() [L105] CALL updateVariables() [L64] var_1_2 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=19999999/2, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=19999999/2, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L66] var_1_3 = __VERIFIER_nondet_double() [L67] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=10, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L68] var_1_6 = __VERIFIER_nondet_short() [L69] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L70] CALL assume_abort_if_not(var_1_6 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 <= 32) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=-1, var_1_8=22/5, var_1_9=29/4] [L71] var_1_7 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_7 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=22/5, var_1_9=29/4] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=22/5, var_1_9=29/4] [L73] CALL assume_abort_if_not(var_1_7 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=22/5, var_1_9=29/4] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=22/5, var_1_9=29/4] [L74] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=22/5, var_1_9=29/4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=22/5, var_1_9=29/4] [L75] var_1_8 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_8 >= -115292.1504606845700e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 1152921.504606845700e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=29/4] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_8 >= -115292.1504606845700e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 1152921.504606845700e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=29/4] [L77] var_1_9 = __VERIFIER_nondet_double() [L78] CALL assume_abort_if_not((var_1_9 >= -115292.1504606845700e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 1152921.504606845700e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_9 >= -115292.1504606845700e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 1152921.504606845700e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=15/2, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L79] var_1_10 = __VERIFIER_nondet_double() [L80] CALL assume_abort_if_not((var_1_10 >= -230584.3009213691390e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 2305843.009213691390e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_10 >= -230584.3009213691390e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 2305843.009213691390e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=23/10, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L81] var_1_11 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_11 >= -230584.3009213691390e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 2305843.009213691390e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_11 >= -230584.3009213691390e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 2305843.009213691390e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=0, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L83] var_1_13 = __VERIFIER_nondet_ulong() [L84] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L85] CALL assume_abort_if_not(var_1_13 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 <= 4294967294) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=4078799264, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L86] var_1_14 = __VERIFIER_nondet_ulong() [L87] CALL assume_abort_if_not(var_1_14 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_14 >= 2147483647) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L88] CALL assume_abort_if_not(var_1_14 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_14 <= 4294967294) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=25, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L89] var_1_16 = __VERIFIER_nondet_ulong() [L90] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=2147483647, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=2147483647, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L91] CALL assume_abort_if_not(var_1_16 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=2147483647, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=128, var_1_13=4294967294, var_1_14=2147483647, var_1_15=500, var_1_16=2147483647, var_1_1=24/5, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L105] RET updateVariables() [L106] CALL step() [L41] var_1_1 = (var_1_2 - var_1_3) [L42] COND TRUE ((((-128) < (last_1_var_1_15)) ? (-128) : (last_1_var_1_15))) < var_1_13 [L43] COND TRUE last_1_var_1_15 > var_1_7 [L44] var_1_15 = (var_1_6 + var_1_16) [L51] EXPR var_1_15 >> var_1_6 [L51] unsigned long int stepLocal_0 = (var_1_15 >> var_1_6) / var_1_7; [L52] COND FALSE !(8 < stepLocal_0) [L55] COND TRUE var_1_2 < var_1_8 [L56] COND FALSE !(((- var_1_15) <= var_1_6) || (var_1_4 < var_1_10)) [L59] var_1_12 = (var_1_14 - var_1_6) [L106] RET step() [L107] CALL, EXPR property() [L97] EXPR (var_1_1 == ((double) (var_1_2 - var_1_3))) && ((8 < ((var_1_15 >> var_1_6) / var_1_7)) ? (var_1_4 == ((double) (((var_1_8 + var_1_9) + ((((var_1_10) < (1.9)) ? (var_1_10) : (1.9)))) + (99.125 + var_1_11)))) : 1) [L97-L98] return (((var_1_1 == ((double) (var_1_2 - var_1_3))) && ((8 < ((var_1_15 >> var_1_6) / var_1_7)) ? (var_1_4 == ((double) (((var_1_8 + var_1_9) + ((((var_1_10) < (1.9)) ? (var_1_10) : (1.9)))) + (99.125 + var_1_11)))) : 1)) && ((var_1_2 < var_1_8) ? ((((- var_1_15) <= var_1_6) || (var_1_4 < var_1_10)) ? (var_1_12 == ((unsigned long int) ((((var_1_6) < (var_1_13)) ? (var_1_6) : (var_1_13))))) : (var_1_12 == ((unsigned long int) (var_1_14 - var_1_6)))) : 1)) && ((((((-128) < (last_1_var_1_15)) ? (-128) : (last_1_var_1_15))) < var_1_13) ? ((last_1_var_1_15 > var_1_7) ? (var_1_15 == ((unsigned long int) (var_1_6 + var_1_16))) : (var_1_15 == ((unsigned long int) var_1_14))) : (var_1_15 == ((unsigned long int) var_1_16))) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=2147483646, var_1_13=4294967294, var_1_14=2147483647, var_1_15=2147483648, var_1_16=2147483647, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=500, var_1_10=5, var_1_11=6, var_1_12=2147483646, var_1_13=4294967294, var_1_14=2147483647, var_1_15=2147483648, var_1_16=2147483647, var_1_3=2, var_1_4=3/5, var_1_6=1, var_1_7=1, var_1_8=3, var_1_9=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 17, 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:50:19,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50b8b3569ebc106b1fc2b1b2c57c29e886b8d65f1c4bed3a92c2da830b6206bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:50:23,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:50:23,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:50:23,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:50:23,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:50:23,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:50:23,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:50:23,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:50:23,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:50:23,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:50:23,251 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:50:23,252 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:50:23,252 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:50:23,253 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:50:23,254 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:50:23,254 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:50:23,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:50:23,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:50:23,257 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:50:23,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:50:23,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:50:23,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:50:23,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:50:23,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:50:23,270 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:50:23,270 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:50:23,271 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:50:23,271 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:50:23,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:50:23,272 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:50:23,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:50:23,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:50:23,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:50:23,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:23,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:50:23,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:50:23,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:50:23,276 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:50:23,277 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:50:23,278 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:50:23,278 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:50:23,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:50:23,281 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_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b8b3569ebc106b1fc2b1b2c57c29e886b8d65f1c4bed3a92c2da830b6206bd [2023-11-19 04:50:23,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:50:23,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:50:23,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:50:23,797 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:50:23,798 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:50:23,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i [2023-11-19 04:50:27,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:50:27,605 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:50:27,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i [2023-11-19 04:50:27,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data/82c4002fa/e631b51441c543e6a81b79c2f170acd8/FLAG2d9c6b94b [2023-11-19 04:50:27,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/data/82c4002fa/e631b51441c543e6a81b79c2f170acd8 [2023-11-19 04:50:27,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:50:27,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:50:27,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:27,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:50:27,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:50:27,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:27" (1/1) ... [2023-11-19 04:50:27,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb5413c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:27, skipping insertion in model container [2023-11-19 04:50:27,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:27" (1/1) ... [2023-11-19 04:50:27,682 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:27,882 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_83905f45-9fe6-4e14-843f-3d9df1ce0eef/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i[917,930] [2023-11-19 04:50:27,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:27,987 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:50:28,002 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_83905f45-9fe6-4e14-843f-3d9df1ce0eef/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-98.i[917,930] [2023-11-19 04:50:28,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:28,050 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:50:28,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28 WrapperNode [2023-11-19 04:50:28,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:28,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:28,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:50:28,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:50:28,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,145 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-19 04:50:28,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:28,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:50:28,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:50:28,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:50:28,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:50:28,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:50:28,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:50:28,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:50:28,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:28,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:28,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:50:28,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:50:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:50:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:50:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:50:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:50:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:50:28,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:50:28,540 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:28,542 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:33,082 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:33,092 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:33,093 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:50:33,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:33 BoogieIcfgContainer [2023-11-19 04:50:33,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:33,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:33,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:33,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:33,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:50:27" (1/3) ... [2023-11-19 04:50:33,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76390942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:33, skipping insertion in model container [2023-11-19 04:50:33,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (2/3) ... [2023-11-19 04:50:33,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76390942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:33, skipping insertion in model container [2023-11-19 04:50:33,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:33" (3/3) ... [2023-11-19 04:50:33,110 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-98.i [2023-11-19 04:50:33,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:33,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:50:33,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:33,198 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;@3656a926, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:33,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:50:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.303030303030303) internal successors, (43), 34 states have internal predecessors, (43), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:50:33,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 04:50:33,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:33,220 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:33,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:33,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:33,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1967116166, now seen corresponding path program 1 times [2023-11-19 04:50:33,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:50:33,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999513394] [2023-11-19 04:50:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:33,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:50:33,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:50:33,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:50:33,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:50:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:34,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:50:34,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:50:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-11-19 04:50:34,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:50:34,083 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:50:34,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999513394] [2023-11-19 04:50:34,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999513394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:34,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:34,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:50:34,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743849873] [2023-11-19 04:50:34,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:34,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:50:34,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:50:34,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:50:34,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:50:34,136 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.303030303030303) internal successors, (43), 34 states have internal predecessors, (43), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:50:34,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:34,175 INFO L93 Difference]: Finished difference Result 99 states and 165 transitions. [2023-11-19 04:50:34,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:50:34,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 109 [2023-11-19 04:50:34,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:34,189 INFO L225 Difference]: With dead ends: 99 [2023-11-19 04:50:34,189 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 04:50:34,194 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 [2023-11-19 04:50:34,199 INFO L413 NwaCegarLoop]: 70 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, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:34,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:50:34,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 04:50:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 04:50:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:50:34,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2023-11-19 04:50:34,262 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 109 [2023-11-19 04:50:34,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:34,263 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2023-11-19 04:50:34,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:50:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2023-11-19 04:50:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 04:50:34,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:34,269 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:34,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:50:34,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:50:34,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:50:34,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash 61737536, now seen corresponding path program 1 times [2023-11-19 04:50:34,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:50:34,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517571679] [2023-11-19 04:50:34,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:34,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:50:34,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:50:34,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:50:34,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83905f45-9fe6-4e14-843f-3d9df1ce0eef/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:50:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:35,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 04:50:35,573 INFO L285 TraceCheckSpWp]: Computing forward predicates...