./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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 45b46b3ee7f86f7814cd473dd2f0c3b871541d9116dfda6389a1ac1f27734388 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:08,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:08,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:08:08,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:08,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:08,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:08,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:08,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:08,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:08,586 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:08,586 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:08,588 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:08,588 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:08,590 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:08,591 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:08,591 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:08,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:08,592 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:08,593 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:08,594 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:08,594 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:08,595 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:08,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:08,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:08,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:08,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:08,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:08,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:08,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:08,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:08,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:08,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:08,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:08,602 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:08,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:08,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:08,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:08,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:08,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:08,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:08,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:08,606 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:08,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:08,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:08,607 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:08,607 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:08,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:08,608 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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45b46b3ee7f86f7814cd473dd2f0c3b871541d9116dfda6389a1ac1f27734388 [2023-11-23 21:08:08,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:08,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:08,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:08,965 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:08,966 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:08,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i [2023-11-23 21:08:12,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:12,357 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:12,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i [2023-11-23 21:08:12,370 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data/41c8dfde7/718f0ae86f5d4dc7912cbcaecc6b6efe/FLAG178ad95f9 [2023-11-23 21:08:12,388 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data/41c8dfde7/718f0ae86f5d4dc7912cbcaecc6b6efe [2023-11-23 21:08:12,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:12,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:12,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:12,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:12,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:12,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b68b67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12, skipping insertion in model container [2023-11-23 21:08:12,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,442 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:12,616 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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i[916,929] [2023-11-23 21:08:12,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:12,683 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:12,697 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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i[916,929] [2023-11-23 21:08:12,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:12,745 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:12,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12 WrapperNode [2023-11-23 21:08:12,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:12,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:12,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:12,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:12,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,827 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2023-11-23 21:08:12,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:12,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:12,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:12,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:12,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:12,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:12,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:12,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:12,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:12,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:12,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:12,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:08:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:13,108 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:13,111 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:13,476 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:13,626 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:13,626 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:13,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:13 BoogieIcfgContainer [2023-11-23 21:08:13,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:13,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:13,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:13,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:13,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:12" (1/3) ... [2023-11-23 21:08:13,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb5557d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:13, skipping insertion in model container [2023-11-23 21:08:13,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12" (2/3) ... [2023-11-23 21:08:13,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb5557d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:13, skipping insertion in model container [2023-11-23 21:08:13,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:13" (3/3) ... [2023-11-23 21:08:13,642 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-17.i [2023-11-23 21:08:13,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:13,666 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:13,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:13,737 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;@352febec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:13,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:13,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:08:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 21:08:13,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:13,758 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:08:13,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:13,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1927482637, now seen corresponding path program 1 times [2023-11-23 21:08:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:13,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970371327] [2023-11-23 21:08:13,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:13,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:14,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:08:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:14,542 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:08:14,544 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:08:14,546 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:08:14,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:08:14,557 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:08:14,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:08:14,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:08:14 BoogieIcfgContainer [2023-11-23 21:08:14,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:08:14,677 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:08:14,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:08:14,677 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:08:14,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:13" (3/4) ... [2023-11-23 21:08:14,680 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:08:14,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:08:14,682 INFO L158 Benchmark]: Toolchain (without parser) took 2288.58ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 81.0MB in the beginning and 77.5MB in the end (delta: 3.5MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2023-11-23 21:08:14,683 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:14,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.28ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 68.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:08:14,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.47ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 65.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:14,685 INFO L158 Benchmark]: Boogie Preprocessor took 34.22ms. Allocated memory is still 123.7MB. Free memory was 65.7MB in the beginning and 63.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:14,686 INFO L158 Benchmark]: RCFGBuilder took 765.77ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 63.9MB in the beginning and 114.1MB in the end (delta: -50.2MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-11-23 21:08:14,687 INFO L158 Benchmark]: TraceAbstraction took 1044.39ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 77.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 21:08:14,687 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 163.6MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:14,691 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory was 89.3MB in the beginning and 89.3MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.28ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 68.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.47ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 65.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.22ms. Allocated memory is still 123.7MB. Free memory was 65.7MB in the beginning and 63.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 765.77ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 63.9MB in the beginning and 114.1MB in the end (delta: -50.2MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1044.39ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 77.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 163.6MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 10000000; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = 16; [L25] signed long int var_1_4 = 7; [L26] signed long int var_1_5 = 49; [L27] signed short int var_1_6 = -10; [L28] signed long int var_1_7 = 4; [L29] signed long int var_1_8 = 9; [L30] signed short int var_1_9 = 128; [L31] signed short int var_1_10 = 128; [L32] unsigned char var_1_11 = 0; [L33] unsigned long int var_1_12 = 100; [L34] signed long int var_1_13 = 128; [L35] signed long int var_1_14 = 3; [L36] unsigned char var_1_15 = 16; [L37] unsigned char var_1_16 = 2; [L38] unsigned char last_1_var_1_15 = 16; [L113] isInitial = 1 [L114] FCALL initially() [L115] COND TRUE 1 [L116] CALL updateLastVariables() [L106] last_1_var_1_15 = var_1_15 [L116] RET updateLastVariables() [L117] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_3=16, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_3=16, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=16, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=16, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L74] var_1_3 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L76] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=7, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L77] var_1_4 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L79] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=49, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L80] var_1_5 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L82] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=4, var_1_8=9, var_1_9=128] [L83] var_1_7 = __VERIFIER_nondet_long() [L84] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=9, var_1_9=128] [L85] CALL assume_abort_if_not(var_1_7 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=9, var_1_9=128] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_7 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=9, var_1_9=128] [L86] var_1_8 = __VERIFIER_nondet_long() [L87] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=128] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=128] [L88] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=128] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=128] [L89] var_1_9 = __VERIFIER_nondet_short() [L90] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L91] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=128, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L92] var_1_10 = __VERIFIER_nondet_short() [L93] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L94] CALL assume_abort_if_not(var_1_10 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_10 <= 32766) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=0, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L95] var_1_11 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L97] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=3, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L98] var_1_14 = __VERIFIER_nondet_long() [L99] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L100] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=2, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L101] var_1_16 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L103] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=0, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=100, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=0, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=-10, var_1_7=0, var_1_8=1, var_1_9=16383] [L117] RET updateVariables() [L118] CALL step() [L42] var_1_12 = last_1_var_1_15 [L43] unsigned long int stepLocal_1 = var_1_12; [L44] signed short int stepLocal_0 = var_1_9; [L45] COND FALSE !(stepLocal_0 >= var_1_10) [L52] COND TRUE \read(var_1_2) [L53] var_1_1 = (var_1_3 + ((((var_1_4) < ((49.5 + var_1_5))) ? (var_1_4) : ((49.5 + var_1_5))))) [L55] COND TRUE (- (var_1_7 - var_1_8)) <= var_1_3 [L56] var_1_6 = ((8 + var_1_15) - var_1_15) [L66] COND TRUE var_1_7 < (var_1_8 - var_1_14) [L67] var_1_13 = ((((var_1_4) > (((((((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) > (var_1_3)) ? (((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) : (var_1_3))))) ? (var_1_4) : (((((((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) > (var_1_3)) ? (((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) : (var_1_3)))))) [L118] RET step() [L119] CALL, EXPR property() [L109-L110] return ((((var_1_2 ? (var_1_1 == ((signed long int) (var_1_3 + ((((var_1_4) < ((49.5 + var_1_5))) ? (var_1_4) : ((49.5 + var_1_5))))))) : 1) && (((- (var_1_7 - var_1_8)) <= var_1_3) ? (var_1_6 == ((signed short int) ((8 + var_1_15) - var_1_15))) : (var_1_2 ? (var_1_11 ? (var_1_6 == ((signed short int) var_1_15)) : 1) : (var_1_6 == ((signed short int) var_1_15))))) && (var_1_12 == ((unsigned long int) last_1_var_1_15))) && ((var_1_7 < (var_1_8 - var_1_14)) ? (var_1_13 == ((signed long int) ((((var_1_4) > (((((((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) > (var_1_3)) ? (((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) : (var_1_3))))) ? (var_1_4) : (((((((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) > (var_1_3)) ? (((((127.4f) > (var_1_5)) ? (127.4f) : (var_1_5)))) : (var_1_3)))))))) : 1)) && ((var_1_9 >= var_1_10) ? (((var_1_9 + last_1_var_1_15) >= var_1_12) ? (var_1_15 == ((unsigned char) var_1_16)) : (var_1_15 == ((unsigned char) var_1_16))) : 1) ; [L119] RET, EXPR property() [L119] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=16, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=0, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=8, var_1_7=0, var_1_8=1, var_1_9=16383] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=16, var_1_10=16384, var_1_11=1, var_1_12=16, var_1_13=128, var_1_14=0, var_1_15=16, var_1_16=0, var_1_1=10000000, var_1_2=1, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=8, var_1_7=0, var_1_8=1, var_1_9=16383] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 22, 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=42occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 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 21:08:14,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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 45b46b3ee7f86f7814cd473dd2f0c3b871541d9116dfda6389a1ac1f27734388 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:17,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:17,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:08:17,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:17,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:17,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:17,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:17,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:17,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:17,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:17,929 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:17,929 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:17,930 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:17,932 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:17,932 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:17,933 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:17,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:17,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:17,935 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:17,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:17,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:17,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:17,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:17,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:17,939 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:08:17,939 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:08:17,940 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:08:17,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:17,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:17,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:17,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:17,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:08:17,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:17,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:17,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:17,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:17,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:17,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:17,946 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:08:17,947 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:17,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:17,948 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:17,948 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:17,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:17,949 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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45b46b3ee7f86f7814cd473dd2f0c3b871541d9116dfda6389a1ac1f27734388 [2023-11-23 21:08:18,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:18,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:18,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:18,437 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:18,437 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:18,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i [2023-11-23 21:08:22,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:22,602 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:22,603 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i [2023-11-23 21:08:22,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data/283e99b59/ee21cec1af634704956cd89e693e4f0f/FLAG3265c7d72 [2023-11-23 21:08:22,636 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/data/283e99b59/ee21cec1af634704956cd89e693e4f0f [2023-11-23 21:08:22,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:22,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:22,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:22,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:22,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:22,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:22" (1/1) ... [2023-11-23 21:08:22,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8d98d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:22, skipping insertion in model container [2023-11-23 21:08:22,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:22" (1/1) ... [2023-11-23 21:08:22,702 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:22,988 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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i[916,929] [2023-11-23 21:08:23,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:23,129 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:23,149 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_1430eaaf-a5a1-4f51-b757-a006f664bc4f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-17.i[916,929] [2023-11-23 21:08:23,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:23,232 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:23,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23 WrapperNode [2023-11-23 21:08:23,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:23,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:23,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:23,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:23,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,323 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2023-11-23 21:08:23,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:23,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:23,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:23,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:23,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:23,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:23,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:23,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:23,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (1/1) ... [2023-11-23 21:08:23,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:23,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:23,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:23,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:23,614 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:23,618 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:30,142 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:30,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:30,190 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:30,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:30 BoogieIcfgContainer [2023-11-23 21:08:30,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:30,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:30,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:30,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:30,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:22" (1/3) ... [2023-11-23 21:08:30,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6f7087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:30, skipping insertion in model container [2023-11-23 21:08:30,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:23" (2/3) ... [2023-11-23 21:08:30,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6f7087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:30, skipping insertion in model container [2023-11-23 21:08:30,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:30" (3/3) ... [2023-11-23 21:08:30,202 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-17.i [2023-11-23 21:08:30,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:30,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:30,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:30,282 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;@577fe699, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:30,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:08:30,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 21:08:30,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:30,305 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:08:30,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:30,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:30,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1692981015, now seen corresponding path program 1 times [2023-11-23 21:08:30,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:30,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195358862] [2023-11-23 21:08:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:30,328 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 21:08:30,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:30,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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 21:08:30,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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 21:08:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:30,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:08:30,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2023-11-23 21:08:30,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:30,945 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:30,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195358862] [2023-11-23 21:08:30,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195358862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:30,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:30,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:30,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337305936] [2023-11-23 21:08:30,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:30,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:08:30,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:31,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:08:31,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:08:31,008 INFO L87 Difference]: Start difference. First operand has 53 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:08:33,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:08:33,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:33,246 INFO L93 Difference]: Finished difference Result 103 states and 188 transitions. [2023-11-23 21:08:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:08:33,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 130 [2023-11-23 21:08:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:33,312 INFO L225 Difference]: With dead ends: 103 [2023-11-23 21:08:33,313 INFO L226 Difference]: Without dead ends: 51 [2023-11-23 21:08:33,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 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 21:08:33,322 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:33,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 21:08:33,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-23 21:08:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-23 21:08:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:08:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 79 transitions. [2023-11-23 21:08:33,386 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 79 transitions. Word has length 130 [2023-11-23 21:08:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:33,387 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 79 transitions. [2023-11-23 21:08:33,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:08:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 79 transitions. [2023-11-23 21:08:33,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 21:08:33,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:33,393 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:08:33,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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)] Ended with exit code 0 [2023-11-23 21:08:33,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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 21:08:33,595 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:33,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:33,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2065342377, now seen corresponding path program 1 times [2023-11-23 21:08:33,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:33,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958173887] [2023-11-23 21:08:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:33,597 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 21:08:33,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:33,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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 21:08:33,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/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 21:08:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:34,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:08:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:34,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-23 21:08:34,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [424954900] [2023-11-23 21:08:34,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:34,383 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:34,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:08:34,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:08:34,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1430eaaf-a5a1-4f51-b757-a006f664bc4f/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:08:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:35,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-23 21:08:35,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:16,361 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ sign_extend 16) c_~var_1_9~0))) (and (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (.cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 99.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0)))) (let ((.cse2 (fp.lt .cse3 .cse1)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_3~0))) (or (and (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse0 .cse1)) c_~var_1_1~0) (not .cse2)) (and .cse2 (= c_~var_1_1~0 ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse0 .cse3))))))) (bvsle .cse4 (_ bv16383 32)) (not (bvsge .cse4 ((_ sign_extend 16) c_~var_1_10~0))) (not (= (_ bv0 8) c_~var_1_2~0)) (bvsge .cse4 (_ bv0 32)) (= c_~var_1_12~0 ((_ zero_extend 24) c_~last_1_var_1_15~0)))) is different from false