./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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_f85a509f-0f49-40bc-9e20-7aec276caa44/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 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:53,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:53,549 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:16:53,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:53,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:53,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:53,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:53,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:53,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:53,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:53,585 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:53,586 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:53,587 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:53,587 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:53,588 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:53,588 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:53,589 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:53,589 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:53,590 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:53,591 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:53,591 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:53,592 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:53,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:53,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:53,593 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:53,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:53,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:53,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:53,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:53,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:53,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:53,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:53,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:53,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:53,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:53,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:53,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:53,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:53,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:53,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:53,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:53,601 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:53,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:53,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:53,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:53,603 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:53,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:53,604 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_f85a509f-0f49-40bc-9e20-7aec276caa44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d [2023-11-23 21:16:53,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:53,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:53,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:53,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:53,887 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:53,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-11-23 21:16:57,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:57,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:57,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-11-23 21:16:57,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data/69c6ecaf1/34d696a95c684cdea10711078b0a3010/FLAG823979e13 [2023-11-23 21:16:57,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data/69c6ecaf1/34d696a95c684cdea10711078b0a3010 [2023-11-23 21:16:57,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:57,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:57,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:57,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:57,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:57,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fe839a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57, skipping insertion in model container [2023-11-23 21:16:57,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:57,726 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_f85a509f-0f49-40bc-9e20-7aec276caa44/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-11-23 21:16:57,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:57,824 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:57,843 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_f85a509f-0f49-40bc-9e20-7aec276caa44/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-11-23 21:16:57,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:57,910 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:57,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57 WrapperNode [2023-11-23 21:16:57,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:57,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:57,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:57,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:57,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,991 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-11-23 21:16:57,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:57,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:57,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:57,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:58,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:58,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:58,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:58,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:58,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:58,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:58,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:58,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:58,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:58,218 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:58,220 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:58,541 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:58,704 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:58,704 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:58,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:58 BoogieIcfgContainer [2023-11-23 21:16:58,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:58,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:58,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:58,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:58,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:57" (1/3) ... [2023-11-23 21:16:58,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d17508d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:58, skipping insertion in model container [2023-11-23 21:16:58,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57" (2/3) ... [2023-11-23 21:16:58,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d17508d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:58, skipping insertion in model container [2023-11-23 21:16:58,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:58" (3/3) ... [2023-11-23 21:16:58,721 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-11.i [2023-11-23 21:16:58,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:58,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:58,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:58,795 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;@43ed2048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:58,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:16:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 21:16:58,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:58,811 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:58,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:58,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1411890040, now seen corresponding path program 1 times [2023-11-23 21:16:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:58,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015883392] [2023-11-23 21:16:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:58,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:59,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:16:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:59,582 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:16:59,585 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:16:59,586 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:16:59,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:59,593 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:16:59,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:16:59,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:16:59 BoogieIcfgContainer [2023-11-23 21:16:59,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:16:59,674 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:16:59,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:16:59,675 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:16:59,675 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:58" (3/4) ... [2023-11-23 21:16:59,677 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:16:59,679 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:16:59,680 INFO L158 Benchmark]: Toolchain (without parser) took 2216.47ms. Allocated memory is still 127.9MB. Free memory was 86.2MB in the beginning and 87.9MB in the end (delta: -1.7MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2023-11-23 21:16:59,681 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:16:59,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.56ms. Allocated memory is still 127.9MB. Free memory was 86.2MB in the beginning and 73.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:16:59,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.00ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 70.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:59,682 INFO L158 Benchmark]: Boogie Preprocessor took 37.72ms. Allocated memory is still 127.9MB. Free memory was 70.4MB in the beginning and 68.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:59,683 INFO L158 Benchmark]: RCFGBuilder took 676.02ms. Allocated memory is still 127.9MB. Free memory was 68.7MB in the beginning and 79.5MB in the end (delta: -10.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-23 21:16:59,684 INFO L158 Benchmark]: TraceAbstraction took 964.19ms. Allocated memory is still 127.9MB. Free memory was 78.9MB in the beginning and 88.7MB in the end (delta: -9.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2023-11-23 21:16:59,684 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 127.9MB. Free memory was 88.7MB in the beginning and 87.9MB in the end (delta: 791.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:59,688 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 100.7MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.56ms. Allocated memory is still 127.9MB. Free memory was 86.2MB in the beginning and 73.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.00ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 70.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.72ms. Allocated memory is still 127.9MB. Free memory was 70.4MB in the beginning and 68.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.02ms. Allocated memory is still 127.9MB. Free memory was 68.7MB in the beginning and 79.5MB in the end (delta: -10.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * TraceAbstraction took 964.19ms. Allocated memory is still 127.9MB. Free memory was 78.9MB in the beginning and 88.7MB in the end (delta: -9.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 127.9MB. Free memory was 88.7MB in the beginning and 87.9MB in the end (delta: 791.2kB). Peak memory consumption was 2.1MB. 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 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed long int var_1_2 = 50; [L24] signed long int var_1_3 = 7; [L25] signed char var_1_7 = 10; [L26] signed long int var_1_8 = 32; [L27] signed long int var_1_9 = 1000000; [L28] signed long int var_1_10 = 2; [L29] unsigned char var_1_11 = 1; [L30] unsigned char var_1_12 = 1; [L31] unsigned char var_1_13 = 1; [L32] unsigned char var_1_14 = 5; [L33] unsigned char var_1_15 = 200; [L34] unsigned char var_1_16 = 10; [L35] unsigned char var_1_17 = 1; [L36] unsigned char last_1_var_1_11 = 1; [L108] isInitial = 1 [L109] FCALL initially() [L110] COND TRUE 1 [L111] CALL updateLastVariables() [L101] last_1_var_1_11 = var_1_11 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_long() [L70] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L71] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=7, var_1_7=10, var_1_8=32, var_1_9=1000000] [L72] var_1_3 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L74] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=10, var_1_8=32, var_1_9=1000000] [L75] var_1_7 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L77] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=1000000] [L78] var_1_9 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L80] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=2, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L81] var_1_10 = __VERIFIER_nondet_long() [L82] CALL assume_abort_if_not(var_1_10 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_10 >= -2147483648) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L83] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L84] var_1_12 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L86] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L87] var_1_13 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L89] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=200, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L90] var_1_15 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L92] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=10, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L93] var_1_16 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L95] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L96] var_1_17 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L98] CALL assume_abort_if_not(var_1_17 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_17 <= 254) VAL [isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=5, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L112] RET updateVariables() [L113] CALL step() [L40] COND TRUE var_1_3 >= var_1_2 [L41] COND TRUE \read(last_1_var_1_11) [L42] COND FALSE !(! last_1_var_1_11) [L45] var_1_8 = var_1_9 [L49] COND TRUE var_1_8 <= var_1_8 [L50] var_1_11 = (var_1_12 || var_1_13) [L52] unsigned char stepLocal_0 = var_1_11; [L53] COND FALSE !((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) [L62] COND FALSE !(! var_1_11) [L65] var_1_14 = var_1_16 [L113] RET step() [L114] CALL, EXPR property() [L104-L105] return (((((var_1_2 - 5.25) < (var_1_8 * (var_1_8 * 199.4))) ? ((var_1_11 && var_1_11) ? ((var_1_8 < var_1_8) ? (var_1_1 == ((signed char) var_1_7)) : (var_1_1 == ((signed char) var_1_7))) : 1) : 1) && ((var_1_3 >= var_1_2) ? (last_1_var_1_11 ? ((! last_1_var_1_11) ? (var_1_8 == ((signed long int) ((((var_1_9) > ((10.25f + var_1_10))) ? (var_1_9) : ((10.25f + var_1_10)))))) : (var_1_8 == ((signed long int) var_1_9))) : 1) : 1)) && ((var_1_8 <= var_1_8) ? (var_1_11 == ((unsigned char) (var_1_12 || var_1_13))) : 1)) && ((! var_1_11) ? (var_1_14 == ((unsigned char) ((((((((var_1_15) < (((((var_1_16) > (5)) ? (var_1_16) : (5))))) ? (var_1_15) : (((((var_1_16) > (5)) ? (var_1_16) : (5))))))) < (var_1_17)) ? (((((var_1_15) < (((((var_1_16) > (5)) ? (var_1_16) : (5))))) ? (var_1_15) : (((((var_1_16) > (5)) ? (var_1_16) : (5))))))) : (var_1_17))))) : (var_1_14 == ((unsigned char) var_1_16))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=1, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=1, var_1_14=1, var_1_15=4, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_2=0, var_1_3=0, var_1_7=126, var_1_8=32, var_1_9=32] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 20, 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=39occurred 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, 74 NumberOfCodeBlocks, 74 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 21:16:59,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/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_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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_f85a509f-0f49-40bc-9e20-7aec276caa44/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 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:17:02,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:17:02,581 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:17:02,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:17:02,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:17:02,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:17:02,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:17:02,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:17:02,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:17:02,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:17:02,664 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:17:02,664 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:17:02,665 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:17:02,666 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:17:02,667 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:17:02,667 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:17:02,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:17:02,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:17:02,669 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:17:02,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:17:02,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:17:02,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:17:02,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:17:02,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:17:02,672 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:17:02,673 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:17:02,673 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:17:02,674 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:17:02,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:17:02,674 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:17:02,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:17:02,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:17:02,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:17:02,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:17:02,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:02,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:17:02,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:17:02,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:17:02,678 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:17:02,679 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:17:02,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:17:02,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:17:02,680 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:17:02,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:17:02,680 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_f85a509f-0f49-40bc-9e20-7aec276caa44/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c04fa9e35f4863ffa3e38fc942000589ae498f8db4e626f7ee6fb3d8c4e793d [2023-11-23 21:17:03,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:17:03,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:17:03,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:17:03,136 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:17:03,137 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:17:03,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-11-23 21:17:06,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:17:06,552 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:17:06,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i [2023-11-23 21:17:06,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data/0943aa601/0e862ab0ae984d3fa0b258b060b0ecf1/FLAG0f211ed99 [2023-11-23 21:17:06,579 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/data/0943aa601/0e862ab0ae984d3fa0b258b060b0ecf1 [2023-11-23 21:17:06,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:17:06,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:17:06,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:06,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:17:06,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:17:06,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:06,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4894fd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06, skipping insertion in model container [2023-11-23 21:17:06,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:06,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:06,788 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_f85a509f-0f49-40bc-9e20-7aec276caa44/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-11-23 21:17:06,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:06,861 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:17:06,875 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_f85a509f-0f49-40bc-9e20-7aec276caa44/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-11.i[916,929] [2023-11-23 21:17:06,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:06,933 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:17:06,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06 WrapperNode [2023-11-23 21:17:06,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:06,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:06,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:17:06,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:17:06,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:06,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,004 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-23 21:17:07,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:07,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:17:07,006 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:17:07,006 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:17:07,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:17:07,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:17:07,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:17:07,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:17:07,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (1/1) ... [2023-11-23 21:17:07,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:07,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:07,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:17:07,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:17:07,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:17:07,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:17:07,159 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:17:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:17:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:17:07,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:17:07,272 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:17:07,275 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:17:15,774 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:15,832 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:15,837 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:17:15,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:15 BoogieIcfgContainer [2023-11-23 21:17:15,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:15,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:15,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:15,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:15,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:17:06" (1/3) ... [2023-11-23 21:17:15,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e3ade6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:15, skipping insertion in model container [2023-11-23 21:17:15,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:06" (2/3) ... [2023-11-23 21:17:15,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e3ade6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:15, skipping insertion in model container [2023-11-23 21:17:15,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:15" (3/3) ... [2023-11-23 21:17:15,852 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-11.i [2023-11-23 21:17:15,869 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:15,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:17:15,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:15,938 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;@7366f855, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:15,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:17:15,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:17:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 21:17:15,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:15,967 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:15,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:15,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:15,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1075937705, now seen corresponding path program 1 times [2023-11-23 21:17:15,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:15,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455290048] [2023-11-23 21:17:15,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:15,993 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 21:17:15,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:16,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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 21:17:16,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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 21:17:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:16,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:17:16,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-23 21:17:16,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:16,875 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:17:16,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455290048] [2023-11-23 21:17:16,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455290048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:16,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:16,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:17:16,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431251891] [2023-11-23 21:17:16,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:16,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:17:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:17:16,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:17:16,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:17:16,945 INFO L87 Difference]: Start difference. First operand has 52 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 30 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:17:19,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:19,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:19,204 INFO L93 Difference]: Finished difference Result 101 states and 182 transitions. [2023-11-23 21:17:19,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:17:19,278 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 120 [2023-11-23 21:17:19,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:19,285 INFO L225 Difference]: With dead ends: 101 [2023-11-23 21:17:19,285 INFO L226 Difference]: Without dead ends: 50 [2023-11-23 21:17:19,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 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 21:17:19,294 INFO L413 NwaCegarLoop]: 72 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, 72 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 21:17:19,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 21:17:19,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-23 21:17:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-23 21:17:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:17:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 75 transitions. [2023-11-23 21:17:19,349 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 75 transitions. Word has length 120 [2023-11-23 21:17:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:19,350 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 75 transitions. [2023-11-23 21:17:19,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:17:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2023-11-23 21:17:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 21:17:19,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:19,355 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:19,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:19,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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 21:17:19,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:19,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash 865068631, now seen corresponding path program 1 times [2023-11-23 21:17:19,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:19,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178755316] [2023-11-23 21:17:19,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:19,571 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 21:17:19,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:19,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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 21:17:19,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/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 21:17:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:20,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:17:20,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 379 proven. 21 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-23 21:17:21,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:17:22,384 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 21:17:22,384 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:17:22,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178755316] [2023-11-23 21:17:22,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178755316] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:17:22,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1379334158] [2023-11-23 21:17:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:22,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:17:22,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:17:22,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:17:22,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f85a509f-0f49-40bc-9e20-7aec276caa44/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:17:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:23,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:17:23,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:59,921 WARN L854 $PredicateComparison]: unable to prove that (and (not (bvsge c_~var_1_3~0 c_~var_1_2~0)) (not (fp.lt (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_2~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 21.0 4.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_8~0))) (fp.mul c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 997.0 5.0))))))) (let ((.cse1 (= c_~var_1_12~0 (_ bv0 8))) (.cse2 (= c_~var_1_13~0 (_ bv0 8)))) (or (and .cse1 (= (_ bv0 8) c_~var_1_11~0) .cse2) (and (= (_ bv1 8) c_~var_1_11~0) (or (not .cse1) (not .cse2)))))) is different from false