./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/rlim_exit.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_exit.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --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 d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:38,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:38,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:38,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:38,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:38,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:38,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:38,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:38,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:38,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:38,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:38,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:38,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:38,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:38,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:38,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:38,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:38,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:38,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:38,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:38,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:38,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:38,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:38,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:38,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:38,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:38,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:38,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:38,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:38,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:38,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:38,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:38,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:38,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:38,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:38,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:38,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:38,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:38,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:38,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:38,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:38,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:08:38,253 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:38,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:38,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:38,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:38,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:38,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:38,255 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:38,255 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:38,255 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:38,255 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:08:38,256 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:38,256 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:38,256 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:08:38,256 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:08:38,256 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:38,257 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:08:38,257 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:08:38,257 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:08:38,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:38,258 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:38,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:08:38,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:38,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:38,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:08:38,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:38,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:08:38,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:38,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:08:38,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:38,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:08:38,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:38,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:38,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:38,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:38,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:38,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:08:38,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:08:38,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:08:38,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:08:38,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:38,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:38,266 INFO L138 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_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f [2021-11-23 17:08:38,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:38,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:38,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:38,551 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:38,552 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:38,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-benchs/rlim_exit.c [2021-11-23 17:08:38,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/3e7a953fc/786de1ecfd5e4bf3bd7063e0993a323f/FLAGca65f0c20 [2021-11-23 17:08:39,091 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:39,092 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/sv-benchmarks/c/float-benchs/rlim_exit.c [2021-11-23 17:08:39,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/3e7a953fc/786de1ecfd5e4bf3bd7063e0993a323f/FLAGca65f0c20 [2021-11-23 17:08:39,477 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/3e7a953fc/786de1ecfd5e4bf3bd7063e0993a323f [2021-11-23 17:08:39,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:39,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:39,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:39,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:39,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:39,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e99a9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39, skipping insertion in model container [2021-11-23 17:08:39,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:39,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:39,648 WARN L230 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_8f1fa337-4abb-4425-a6db-dc16f4289105/sv-benchmarks/c/float-benchs/rlim_exit.c[446,459] [2021-11-23 17:08:39,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:39,674 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:39,687 WARN L230 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_8f1fa337-4abb-4425-a6db-dc16f4289105/sv-benchmarks/c/float-benchs/rlim_exit.c[446,459] [2021-11-23 17:08:39,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:39,706 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:39,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39 WrapperNode [2021-11-23 17:08:39,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:39,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:39,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:39,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:39,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,743 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2021-11-23 17:08:39,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:39,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:39,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:39,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:39,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:39,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:39,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:39,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:39,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:39,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:39,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:39,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:08:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:08:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:08:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:39,929 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:39,932 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:08:40,097 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:08:40,116 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:08:40,126 INFO L158 Benchmark]: Toolchain (without parser) took 638.67ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 56.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,127 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:40,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.01ms. Allocated memory is still 107.0MB. Free memory was 78.1MB in the beginning and 68.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.82ms. Allocated memory is still 107.0MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,129 INFO L158 Benchmark]: Boogie Preprocessor took 34.17ms. Allocated memory is still 107.0MB. Free memory was 66.7MB in the beginning and 65.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,129 INFO L158 Benchmark]: RCFGBuilder took 343.92ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 56.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.01ms. Allocated memory is still 107.0MB. Free memory was 78.1MB in the beginning and 68.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.82ms. Allocated memory is still 107.0MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.17ms. Allocated memory is still 107.0MB. Free memory was 66.7MB in the beginning and 65.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 343.92ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 56.0MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:08:40,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_exit.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --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 d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:42,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:42,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:42,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:42,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:42,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:42,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:42,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:42,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:42,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:42,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:42,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:42,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:42,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:42,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:42,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:42,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:42,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:42,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:42,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:42,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:42,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:42,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:42,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:42,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:42,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:42,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:42,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:42,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:42,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:42,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:42,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:42,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:42,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:42,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:42,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:42,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:42,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:42,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:42,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:42,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:42,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:08:42,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:42,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:42,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:42,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:42,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:42,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:42,791 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:42,791 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:42,791 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:42,791 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:42,792 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:42,792 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:42,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:42,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:42,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:42,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:42,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:08:42,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:42,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:08:42,794 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:08:42,794 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:08:42,795 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:08:42,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:42,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:08:42,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:42,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:08:42,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:42,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:08:42,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:42,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:42,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:42,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:42,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:08:42,798 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:08:42,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:08:42,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:08:42,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:42,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:42,799 INFO L138 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_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f [2021-11-23 17:08:43,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:43,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:43,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:43,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:43,290 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:43,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-benchs/rlim_exit.c [2021-11-23 17:08:43,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/2fc7e2ee5/377a832c91544b4fa658fc2cd8a4823c/FLAGb4c2e275a [2021-11-23 17:08:43,933 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:43,934 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/sv-benchmarks/c/float-benchs/rlim_exit.c [2021-11-23 17:08:43,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/2fc7e2ee5/377a832c91544b4fa658fc2cd8a4823c/FLAGb4c2e275a [2021-11-23 17:08:44,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/data/2fc7e2ee5/377a832c91544b4fa658fc2cd8a4823c [2021-11-23 17:08:44,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:44,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:44,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:44,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:44,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:44,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243f6187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44, skipping insertion in model container [2021-11-23 17:08:44,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:44,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:44,495 WARN L230 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_8f1fa337-4abb-4425-a6db-dc16f4289105/sv-benchmarks/c/float-benchs/rlim_exit.c[446,459] [2021-11-23 17:08:44,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:44,523 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:44,568 WARN L230 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_8f1fa337-4abb-4425-a6db-dc16f4289105/sv-benchmarks/c/float-benchs/rlim_exit.c[446,459] [2021-11-23 17:08:44,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:44,595 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:44,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44 WrapperNode [2021-11-23 17:08:44,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:44,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:44,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:44,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:44,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,632 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 17:08:44,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:44,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:44,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:44,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:44,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:44,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:44,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:44,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:44,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (1/1) ... [2021-11-23 17:08:44,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:44,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:44,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:44,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:08:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:08:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:08:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:44,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:44,840 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:44,842 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:08:45,171 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:08:45,192 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:08:45,192 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:08:45,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:08:45 BoogieIcfgContainer [2021-11-23 17:08:45,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:08:45,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:08:45,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:08:45,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:08:45,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:08:44" (1/3) ... [2021-11-23 17:08:45,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43839e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:08:45, skipping insertion in model container [2021-11-23 17:08:45,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:44" (2/3) ... [2021-11-23 17:08:45,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43839e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:08:45, skipping insertion in model container [2021-11-23 17:08:45,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:08:45" (3/3) ... [2021-11-23 17:08:45,217 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_exit.c [2021-11-23 17:08:45,222 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:08:45,222 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:08:45,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:08:45,300 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:08:45,304 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:08:45,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 17:08:45,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 17:08:45,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:08:45,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 17:08:45,329 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:08:45,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:08:45,340 INFO L85 PathProgramCache]: Analyzing trace with hash 889617946, now seen corresponding path program 1 times [2021-11-23 17:08:45,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:08:45,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215439400] [2021-11-23 17:08:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:08:45,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:08:45,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:08:45,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:08:45,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:08:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:08:45,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:08:45,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:08:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:08:45,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:08:45,560 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:08:45,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215439400] [2021-11-23 17:08:45,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215439400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:08:45,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:08:45,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:08:45,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110171209] [2021-11-23 17:08:45,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:08:45,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:08:45,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:08:45,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:08:45,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:08:45,613 INFO L87 Difference]: Start difference. First operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:08:45,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:08:45,667 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. [2021-11-23 17:08:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:08:45,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-23 17:08:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:08:45,679 INFO L225 Difference]: With dead ends: 47 [2021-11-23 17:08:45,679 INFO L226 Difference]: Without dead ends: 24 [2021-11-23 17:08:45,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:08:45,689 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:08:45,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:08:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-23 17:08:45,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2021-11-23 17:08:45,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 17:08:45,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-11-23 17:08:45,758 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 6 [2021-11-23 17:08:45,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:08:45,759 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-23 17:08:45,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:08:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-11-23 17:08:45,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 17:08:45,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:08:45,765 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:08:45,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:08:45,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:08:45,978 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:08:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:08:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1329688190, now seen corresponding path program 1 times [2021-11-23 17:08:45,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:08:45,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192471318] [2021-11-23 17:08:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:08:45,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:08:45,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:08:45,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:08:46,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:08:46,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:08:46,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:08:46,201 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:08:46,206 INFO L158 Benchmark]: Toolchain (without parser) took 1895.26ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 38.5MB in the beginning and 40.2MB in the end (delta: -1.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:46,207 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 58.7MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:46,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.10ms. Allocated memory is still 58.7MB. Free memory was 38.3MB in the beginning and 41.8MB in the end (delta: -3.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:08:46,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.72ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 40.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:46,208 INFO L158 Benchmark]: Boogie Preprocessor took 51.95ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 38.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:46,209 INFO L158 Benchmark]: RCFGBuilder took 508.29ms. Allocated memory is still 58.7MB. Free memory was 38.8MB in the beginning and 29.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:08:46,210 INFO L158 Benchmark]: TraceAbstraction took 1009.29ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 29.0MB in the beginning and 40.2MB in the end (delta: -11.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-23 17:08:46,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 58.7MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.10ms. Allocated memory is still 58.7MB. Free memory was 38.3MB in the beginning and 41.8MB in the end (delta: -3.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.72ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 40.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.95ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 38.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.29ms. Allocated memory is still 58.7MB. Free memory was 38.8MB in the beginning and 29.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1009.29ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 29.0MB in the beginning and 40.2MB in the end (delta: -11.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:08:46,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1fa337-4abb-4425-a6db-dc16f4289105/bin/utaipan-fb15Y9Yzbl/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable