./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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 a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:31,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:31,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:29:31,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:31,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:31,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:31,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:31,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:31,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:31,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:31,831 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:31,832 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:31,833 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:31,833 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:31,834 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:31,834 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:31,835 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:31,836 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:31,837 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:31,837 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:31,838 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:31,839 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:31,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:31,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:31,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:29:31,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:31,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:29:31,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:31,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:31,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:31,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:31,847 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:29:31,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:31,848 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:31,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:31,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:31,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:31,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:31,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:31,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:31,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:31,850 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:31,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:31,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:31,852 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:31,852 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:31,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:31,852 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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a [2023-11-23 21:29:32,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:32,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:32,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:32,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:32,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:32,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-23 21:29:35,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:35,686 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:35,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-23 21:29:35,697 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data/a31261bc7/28bded27ce2c4d778a1e427c15085c95/FLAGab06fe0c2 [2023-11-23 21:29:35,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data/a31261bc7/28bded27ce2c4d778a1e427c15085c95 [2023-11-23 21:29:35,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:35,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:35,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:35,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:35,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:35,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:35" (1/1) ... [2023-11-23 21:29:35,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d66b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:35, skipping insertion in model container [2023-11-23 21:29:35,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:35" (1/1) ... [2023-11-23 21:29:35,770 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:35,964 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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-23 21:29:36,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:36,028 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:36,043 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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-23 21:29:36,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:36,093 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:36,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36 WrapperNode [2023-11-23 21:29:36,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:36,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:36,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:36,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:36,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,205 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2023-11-23 21:29:36,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:36,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:36,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:36,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:36,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:36,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:36,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:36,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:36,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (1/1) ... [2023-11-23 21:29:36,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:36,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:36,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:36,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:36,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:36,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:36,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:36,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:36,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:36,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:36,465 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:36,468 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:36,871 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:37,159 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:37,159 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:37,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:37 BoogieIcfgContainer [2023-11-23 21:29:37,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:37,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:37,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:37,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:37,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:35" (1/3) ... [2023-11-23 21:29:37,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3643abb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:37, skipping insertion in model container [2023-11-23 21:29:37,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:36" (2/3) ... [2023-11-23 21:29:37,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3643abb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:37, skipping insertion in model container [2023-11-23 21:29:37,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:37" (3/3) ... [2023-11-23 21:29:37,171 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-23 21:29:37,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:37,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:37,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:37,244 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;@6794a292, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:37,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:29:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 21:29:37,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:37,260 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:37,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:37,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash 480952373, now seen corresponding path program 1 times [2023-11-23 21:29:37,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:37,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836395422] [2023-11-23 21:29:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:37,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:37,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:37,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793476517] [2023-11-23 21:29:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:37,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:37,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:37,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:37,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:29:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:37,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:29:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:37,859 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:29:37,864 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:29:37,866 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:29:37,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:38,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:29:38,091 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:29:38,095 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:29:38,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:29:38 BoogieIcfgContainer [2023-11-23 21:29:38,190 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:29:38,190 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:29:38,191 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:29:38,191 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:29:38,191 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:37" (3/4) ... [2023-11-23 21:29:38,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:29:38,195 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:29:38,196 INFO L158 Benchmark]: Toolchain (without parser) took 2476.52ms. Allocated memory is still 172.0MB. Free memory was 125.5MB in the beginning and 103.1MB in the end (delta: 22.4MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-11-23 21:29:38,197 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:38,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.36ms. Allocated memory is still 172.0MB. Free memory was 125.5MB in the beginning and 112.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:29:38,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.16ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 108.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:29:38,199 INFO L158 Benchmark]: Boogie Preprocessor took 58.99ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:29:38,200 INFO L158 Benchmark]: RCFGBuilder took 894.63ms. Allocated memory is still 172.0MB. Free memory was 107.3MB in the beginning and 136.7MB in the end (delta: -29.4MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2023-11-23 21:29:38,200 INFO L158 Benchmark]: TraceAbstraction took 1025.84ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 103.1MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-23 21:29:38,201 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 172.0MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:38,207 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.36ms. Allocated memory is still 172.0MB. Free memory was 125.5MB in the beginning and 112.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.16ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 108.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.99ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 894.63ms. Allocated memory is still 172.0MB. Free memory was 107.3MB in the beginning and 136.7MB in the end (delta: -29.4MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1025.84ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 103.1MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 172.0MB. Free memory is still 103.1MB. 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 someBinaryFLOATComparisonOperation at line 103, overapproximation of shiftLeft at line 61, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] unsigned char var_1_2 = 0; [L24] signed short int var_1_5 = 8; [L25] signed short int var_1_6 = -32; [L26] unsigned char var_1_7 = 128; [L27] unsigned char var_1_8 = 10; [L28] unsigned char var_1_9 = 2; [L29] signed long int var_1_10 = 0; [L30] float var_1_11 = 32.5; [L31] float var_1_13 = 127.8; [L32] float var_1_14 = 999.25; [L33] float var_1_15 = 1000000000.5; [L34] float var_1_16 = 256.6; [L35] signed long int last_1_var_1_10 = 0; [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] CALL updateLastVariables() [L100] last_1_var_1_10 = var_1_10 [L110] RET updateLastVariables() [L111] CALL updateVariables() [L72] var_1_2 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L74] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L75] var_1_5 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L77] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L78] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L79] var_1_6 = __VERIFIER_nondet_short() [L80] CALL assume_abort_if_not(var_1_6 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_6 >= -32768) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L81] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L82] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L83] var_1_7 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_8=10, var_1_9=2] [L85] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=10, var_1_9=2] [L86] var_1_8 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_9=2] [L88] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=2] [L89] var_1_9 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0] [L91] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L92] var_1_13 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L94] var_1_14 = __VERIFIER_nondet_float() [L95] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L96] var_1_15 = __VERIFIER_nondet_float() [L97] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L111] RET updateVariables() [L112] CALL step() [L39] signed long int stepLocal_0 = (last_1_var_1_10 / var_1_5) % var_1_6; [L40] COND FALSE !(\read(var_1_2)) [L45] var_1_1 = var_1_9 [L47] unsigned char stepLocal_2 = var_1_1; [L48] signed long int stepLocal_1 = var_1_1 + var_1_1; [L49] COND TRUE stepLocal_1 < var_1_6 [L50] COND FALSE !(\read(var_1_2)) [L55] var_1_10 = var_1_8 [L60] unsigned char stepLocal_4 = var_1_1; [L61] EXPR (var_1_9 / var_1_5) << var_1_6 [L61] signed long int stepLocal_3 = (var_1_9 / var_1_5) << var_1_6; [L62] COND TRUE stepLocal_4 > var_1_10 [L63] COND FALSE !(var_1_1 <= stepLocal_3) [L69] var_1_16 = var_1_15 [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR ((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15)))) [L103] EXPR (var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))) [L103] EXPR (var_1_9 / var_1_5) << var_1_6 [L103] EXPR (var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))) [L103] EXPR ((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15)))) [L103-L104] return (((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))))) && (var_1_16 == ((float) var_1_15)) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2, var_1_16=2, var_1_1=1, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2, var_1_16=2, var_1_1=1, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 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 21:29:38,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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 a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:40,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:40,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:29:41,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:41,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:41,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:41,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:41,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:41,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:41,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:41,064 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:41,065 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:41,065 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:41,066 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:41,066 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:41,067 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:41,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:41,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:41,069 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:29:41,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:29:41,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:41,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:41,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:41,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:41,072 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:29:41,073 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:29:41,073 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:29:41,074 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:29:41,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:41,075 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:41,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:41,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:29:41,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:41,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:41,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:41,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:41,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:41,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:41,078 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:29:41,079 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:29:41,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:41,080 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:41,080 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:41,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:41,080 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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a [2023-11-23 21:29:41,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:41,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:41,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:41,572 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:41,573 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:41,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-23 21:29:44,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:45,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:45,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-23 21:29:45,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data/cffbd5ac8/9aa65f20a5e04af5b028825cb100f856/FLAGbc652339b [2023-11-23 21:29:45,391 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/data/cffbd5ac8/9aa65f20a5e04af5b028825cb100f856 [2023-11-23 21:29:45,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:45,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:45,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:45,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:45,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:45,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:45,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658204bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45, skipping insertion in model container [2023-11-23 21:29:45,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:45,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:45,722 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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-23 21:29:45,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:45,851 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:45,874 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_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-23 21:29:45,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:45,955 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:45,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45 WrapperNode [2023-11-23 21:29:45,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:45,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:45,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:45,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:45,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:45,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,041 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-23 21:29:46,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:46,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:46,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:46,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:46,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:46,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:46,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:46,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:46,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (1/1) ... [2023-11-23 21:29:46,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:46,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:46,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:46,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:29:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:46,350 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:46,353 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:47,714 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:47,795 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:47,800 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:47,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:47 BoogieIcfgContainer [2023-11-23 21:29:47,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:47,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:47,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:47,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:47,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:45" (1/3) ... [2023-11-23 21:29:47,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcb2594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:47, skipping insertion in model container [2023-11-23 21:29:47,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:45" (2/3) ... [2023-11-23 21:29:47,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcb2594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:47, skipping insertion in model container [2023-11-23 21:29:47,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:47" (3/3) ... [2023-11-23 21:29:47,810 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-23 21:29:47,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:47,830 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:47,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:47,898 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;@4637b483, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:47,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:29:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:29:47,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:47,917 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:47,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:47,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash 76981722, now seen corresponding path program 1 times [2023-11-23 21:29:47,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:47,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084613981] [2023-11-23 21:29:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:47,940 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 21:29:47,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:47,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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 21:29:47,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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 21:29:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:48,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:29:48,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-11-23 21:29:48,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:48,468 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:48,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084613981] [2023-11-23 21:29:48,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084613981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:48,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:48,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:29:48,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174146923] [2023-11-23 21:29:48,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:48,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:29:48,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:48,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:29:48,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:29:48,527 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:29:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:49,263 INFO L93 Difference]: Finished difference Result 93 states and 163 transitions. [2023-11-23 21:29:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:29:49,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 104 [2023-11-23 21:29:49,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:49,292 INFO L225 Difference]: With dead ends: 93 [2023-11-23 21:29:49,293 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 21:29:49,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 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 21:29:49,301 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:49,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:29:49,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 21:29:49,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 21:29:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:29:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2023-11-23 21:29:49,353 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 104 [2023-11-23 21:29:49,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:49,354 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2023-11-23 21:29:49,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:29:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2023-11-23 21:29:49,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:29:49,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:49,359 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:49,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:29:49,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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 21:29:49,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:49,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:49,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2001550616, now seen corresponding path program 1 times [2023-11-23 21:29:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:49,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145610677] [2023-11-23 21:29:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:49,571 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 21:29:49,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:49,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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 21:29:49,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84dbe3a3-78fa-4c6d-af27-2fbf5fec69ac/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 21:29:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:50,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 21:29:50,087 INFO L285 TraceCheckSpWp]: Computing forward predicates...