./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:18:13,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:18:13,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:18:13,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:18:13,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:18:13,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:18:13,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:18:13,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:18:13,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:18:13,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:18:13,893 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:18:13,894 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:18:13,895 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:18:13,895 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:18:13,896 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:18:13,896 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:18:13,897 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:18:13,897 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:18:13,898 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:18:13,898 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:18:13,899 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:18:13,900 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:18:13,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:18:13,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:18:13,902 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:18:13,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:18:13,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:18:13,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:18:13,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:18:13,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:18:13,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:18:13,906 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:18:13,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:18:13,907 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:18:13,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:18:13,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:18:13,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:13,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:18:13,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:18:13,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:18:13,909 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:18:13,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:18:13,909 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:18:13,910 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:18:13,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:18:13,911 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_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f [2023-11-19 04:18:14,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:18:14,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:18:14,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:18:14,236 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:18:14,236 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:18:14,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i [2023-11-19 04:18:17,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:18:17,631 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:18:17,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i [2023-11-19 04:18:17,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data/ed0d371ef/3b262f2a030448f18ae80cc2282aa736/FLAG2056c5413 [2023-11-19 04:18:17,663 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data/ed0d371ef/3b262f2a030448f18ae80cc2282aa736 [2023-11-19 04:18:17,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:18:17,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:18:17,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:17,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:18:17,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:18:17,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:17" (1/1) ... [2023-11-19 04:18:17,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fe3a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:17, skipping insertion in model container [2023-11-19 04:18:17,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:17" (1/1) ... [2023-11-19 04:18:17,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:18:17,892 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_af579868-bd0a-4b4a-b1a4-252d51ae2e60/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2023-11-19 04:18:17,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:17,945 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:18:17,959 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_af579868-bd0a-4b4a-b1a4-252d51ae2e60/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2023-11-19 04:18:18,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:18,036 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:18:18,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18 WrapperNode [2023-11-19 04:18:18,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:18,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:18,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:18:18,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:18:18,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,106 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2023-11-19 04:18:18,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:18,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:18:18,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:18:18,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:18:18,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:18:18,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:18:18,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:18:18,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:18:18,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (1/1) ... [2023-11-19 04:18:18,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:18,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:18:18,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:18:18,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:18:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:18:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:18:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:18:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:18:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:18:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:18:18,389 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:18:18,391 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:18:18,661 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:18:18,773 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:18:18,773 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:18:18,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:18 BoogieIcfgContainer [2023-11-19 04:18:18,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:18:18,781 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:18:18,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:18:18,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:18:18,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:18:17" (1/3) ... [2023-11-19 04:18:18,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d71f249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:18, skipping insertion in model container [2023-11-19 04:18:18,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:18" (2/3) ... [2023-11-19 04:18:18,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d71f249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:18, skipping insertion in model container [2023-11-19 04:18:18,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:18" (3/3) ... [2023-11-19 04:18:18,788 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-0.i [2023-11-19 04:18:18,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:18:18,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:18:18,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:18:18,868 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;@1294f2cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:18:18,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:18:18,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 04:18:18,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 04:18:18,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:18:18,888 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:18:18,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:18:18,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:18:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1539674499, now seen corresponding path program 1 times [2023-11-19 04:18:18,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:18:18,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459157668] [2023-11-19 04:18:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:18,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:18:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:18:19,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:18:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:18:19,282 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:18:19,284 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:18:19,286 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:18:19,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:18:19,292 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:18:19,297 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:18:19,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:18:19 BoogieIcfgContainer [2023-11-19 04:18:19,340 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:18:19,341 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:18:19,341 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:18:19,341 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:18:19,342 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:18" (3/4) ... [2023-11-19 04:18:19,344 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:18:19,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:18:19,346 INFO L158 Benchmark]: Toolchain (without parser) took 1673.17ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 50.7MB in the end (delta: 22.3MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2023-11-19 04:18:19,347 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:18:19,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.05ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 60.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:18:19,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.12ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 58.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:18:19,348 INFO L158 Benchmark]: Boogie Preprocessor took 46.76ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 57.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:18:19,349 INFO L158 Benchmark]: RCFGBuilder took 623.64ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 74.4MB in the end (delta: -17.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-11-19 04:18:19,350 INFO L158 Benchmark]: TraceAbstraction took 558.89ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 50.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:18:19,350 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 117.4MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:18:19,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.05ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 60.7MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.12ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 58.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.76ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 57.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 623.64ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 74.4MB in the end (delta: -17.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 558.89ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 50.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 117.4MB. Free memory is still 50.7MB. 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 50, overapproximation of someBinaryDOUBLEComparisonOperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed long int var_1_3 = 128; [L25] signed long int var_1_4 = 15; [L26] signed long int var_1_5 = 5; [L27] unsigned char var_1_9 = 1; [L28] unsigned char var_1_10 = 100; [L29] unsigned char var_1_12 = 1; [L30] unsigned short int var_1_13 = 5; [L31] signed long int last_1_var_1_5 = 5; [L32] unsigned char last_1_var_1_10 = 100; [L33] unsigned short int last_1_var_1_13 = 5; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L86] last_1_var_1_5 = var_1_5 [L87] last_1_var_1_10 = var_1_10 [L88] last_1_var_1_13 = var_1_13 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L72] var_1_3 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L75] var_1_4 = __VERIFIER_nondet_long() [L76] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L78] var_1_9 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L80] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L81] var_1_12 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=4, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=4, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L83] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=4, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=4, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L99] RET updateVariables() [L100] CALL step() [L37] COND TRUE \read(var_1_9) [L38] COND TRUE (var_1_4 * (var_1_3 - 5.3)) <= last_1_var_1_5 [L39] var_1_13 = last_1_var_1_10 [L42] COND FALSE !((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) [L47] COND FALSE !(! var_1_2) [L50] var_1_1 = ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3))) [L52] COND FALSE !((var_1_3 + (var_1_4 + var_1_1)) != var_1_1) [L65] var_1_5 = var_1_3 [L100] RET step() [L101] CALL, EXPR property() [L91-L92] return ((((! var_1_2) ? (var_1_1 == ((signed long int) (var_1_3 - var_1_4))) : (var_1_1 == ((signed long int) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_3 + (var_1_4 + var_1_1)) != var_1_1) ? (var_1_2 ? (((- var_1_13) <= var_1_10) ? (var_1_9 ? (var_1_5 == ((signed long int) var_1_4)) : 1) : (var_1_5 == ((signed long int) var_1_3))) : (var_1_5 == ((signed long int) var_1_3))) : (var_1_5 == ((signed long int) var_1_3)))) && (((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) ? ((last_1_var_1_13 > last_1_var_1_13) ? (var_1_10 == ((unsigned char) var_1_12)) : 1) : 1)) && (var_1_9 ? (((var_1_4 * (var_1_3 - 5.3)) <= last_1_var_1_5) ? (var_1_13 == ((unsigned short int) last_1_var_1_10)) : 1) : 1) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=4, var_1_13=100, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=4, var_1_13=100, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 10, 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=24occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:18:19,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:18:22,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:18:22,349 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:18:22,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:18:22,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:18:22,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:18:22,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:18:22,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:18:22,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:18:22,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:18:22,417 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:18:22,418 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:18:22,419 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:18:22,420 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:18:22,421 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:18:22,421 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:18:22,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:18:22,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:18:22,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:18:22,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:18:22,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:18:22,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:18:22,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:18:22,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:18:22,428 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:18:22,428 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:18:22,429 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:18:22,429 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:18:22,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:18:22,430 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:18:22,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:18:22,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:18:22,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:18:22,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:22,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:18:22,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:18:22,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:18:22,434 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:18:22,435 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:18:22,436 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:18:22,436 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:18:22,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:18:22,437 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_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f [2023-11-19 04:18:22,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:18:22,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:18:22,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:18:22,901 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:18:22,901 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:18:22,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i [2023-11-19 04:18:26,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:18:26,368 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:18:26,370 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i [2023-11-19 04:18:26,381 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data/f56325c38/ebd21f4ffdc84ceabf125326ca8db959/FLAGe9955bac9 [2023-11-19 04:18:26,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/data/f56325c38/ebd21f4ffdc84ceabf125326ca8db959 [2023-11-19 04:18:26,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:18:26,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:18:26,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:26,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:18:26,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:18:26,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120de7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26, skipping insertion in model container [2023-11-19 04:18:26,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:18:26,678 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_af579868-bd0a-4b4a-b1a4-252d51ae2e60/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2023-11-19 04:18:26,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:26,767 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:18:26,785 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_af579868-bd0a-4b4a-b1a4-252d51ae2e60/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2023-11-19 04:18:26,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:26,850 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:18:26,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26 WrapperNode [2023-11-19 04:18:26,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:26,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:26,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:18:26,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:18:26,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,929 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-11-19 04:18:26,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:26,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:18:26,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:18:26,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:18:26,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:18:26,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:18:26,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:18:26,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:18:26,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (1/1) ... [2023-11-19 04:18:26,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:27,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:18:27,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:18:27,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:18:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:18:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:18:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:18:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:18:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:18:27,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:18:27,191 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:18:27,193 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:18:34,130 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:18:34,138 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:18:34,139 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:18:34,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:34 BoogieIcfgContainer [2023-11-19 04:18:34,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:18:34,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:18:34,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:18:34,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:18:34,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:18:26" (1/3) ... [2023-11-19 04:18:34,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cbc64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:34, skipping insertion in model container [2023-11-19 04:18:34,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:26" (2/3) ... [2023-11-19 04:18:34,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cbc64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:34, skipping insertion in model container [2023-11-19 04:18:34,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:34" (3/3) ... [2023-11-19 04:18:34,152 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-0.i [2023-11-19 04:18:34,172 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:18:34,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:18:34,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:18:34,231 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;@478669ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:18:34,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:18:34,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 04:18:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 04:18:34,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:18:34,247 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:18:34,247 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:18:34,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:18:34,253 INFO L85 PathProgramCache]: Analyzing trace with hash -673112580, now seen corresponding path program 1 times [2023-11-19 04:18:34,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:18:34,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866936883] [2023-11-19 04:18:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:34,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:18:34,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:18:34,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:18:34,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:18:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:18:34,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:18:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:18:35,090 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-19 04:18:35,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [486590063] [2023-11-19 04:18:35,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:35,091 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:18:35,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:18:35,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:18:35,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af579868-bd0a-4b4a-b1a4-252d51ae2e60/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 04:18:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:18:35,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 04:18:35,677 INFO L285 TraceCheckSpWp]: Computing forward predicates...