./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8 --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 1efcda3c8e82047a1882f782282ebcbc84855c8e ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8 --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 1efcda3c8e82047a1882f782282ebcbc84855c8e ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:06:36,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:06:36,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:06:36,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:06:36,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:06:36,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:06:36,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:06:36,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:06:36,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:06:36,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:06:36,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:06:36,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:06:36,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:06:36,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:06:36,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:06:36,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:06:36,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:06:36,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:06:36,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:06:36,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:06:36,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:06:36,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:06:36,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:06:36,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:06:36,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:06:36,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:06:36,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:06:36,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:06:36,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:06:36,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:06:36,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:06:36,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:06:36,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:06:36,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:06:36,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:06:36,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:06:36,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:06:36,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:06:36,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:06:36,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:06:36,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:06:36,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:06:36,785 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:06:36,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:06:36,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:06:36,787 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:06:36,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:06:36,788 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:06:36,788 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:06:36,788 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:06:36,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:06:36,789 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:06:36,790 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:06:36,790 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:06:36,790 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:06:36,791 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:06:36,791 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:06:36,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:06:36,792 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:06:36,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:06:36,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:06:36,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:06:36,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:06:36,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:06:36,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:06:36,793 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:06:36,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:06:36,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:06:36,794 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:06:36,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:06:36,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:06:36,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:06:36,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:06:36,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:06:36,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:06:36,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:06:36,796 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:06:36,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:06:36,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:06:36,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:06:36,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:06:36,797 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_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1efcda3c8e82047a1882f782282ebcbc84855c8e [2021-10-13 08:06:37,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:06:37,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:06:37,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:06:37,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:06:37,129 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:06:37,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-10-13 08:06:37,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/340d5150f/91af93de8fa44ba592da686d9a68ad9b/FLAGc93bb91cf [2021-10-13 08:06:37,679 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:06:37,680 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-10-13 08:06:37,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/340d5150f/91af93de8fa44ba592da686d9a68ad9b/FLAGc93bb91cf [2021-10-13 08:06:38,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/340d5150f/91af93de8fa44ba592da686d9a68ad9b [2021-10-13 08:06:38,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:06:38,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:06:38,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:06:38,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:06:38,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:06:38,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ce4800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38, skipping insertion in model container [2021-10-13 08:06:38,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:06:38,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:06:38,315 WARN L228 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_d50931c8-4082-41c4-a610-3b78080a55e2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-10-13 08:06:38,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:06:38,328 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:06:38,390 WARN L228 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_d50931c8-4082-41c4-a610-3b78080a55e2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-10-13 08:06:38,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:06:38,409 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:06:38,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38 WrapperNode [2021-10-13 08:06:38,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:06:38,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:06:38,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:06:38,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:06:38,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:06:38,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:06:38,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:06:38,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:06:38,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:06:38,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:06:38,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:06:38,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:06:38,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (1/1) ... [2021-10-13 08:06:38,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:06:38,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:06:38,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:06:38,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:06:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:06:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:06:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 08:06:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 08:06:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 08:06:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:06:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:06:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 08:06:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 08:06:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 08:06:39,647 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:06:39,647 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-13 08:06:39,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:06:39 BoogieIcfgContainer [2021-10-13 08:06:39,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:06:39,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:06:39,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:06:39,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:06:39,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:06:38" (1/3) ... [2021-10-13 08:06:39,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2864872b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:06:39, skipping insertion in model container [2021-10-13 08:06:39,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:38" (2/3) ... [2021-10-13 08:06:39,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2864872b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:06:39, skipping insertion in model container [2021-10-13 08:06:39,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:06:39" (3/3) ... [2021-10-13 08:06:39,667 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0663a.c [2021-10-13 08:06:39,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:06:39,673 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:06:39,727 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:06:39,739 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, mConcurrency=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 [2021-10-13 08:06:39,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:06:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.75) internal successors, (133), 77 states have internal predecessors, (133), 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) [2021-10-13 08:06:39,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:06:39,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:06:39,778 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:06:39,779 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:06:39,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:06:39,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1265042603, now seen corresponding path program 1 times [2021-10-13 08:06:39,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:06:39,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026389571] [2021-10-13 08:06:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:06:39,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:06:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:06:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:06:40,037 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:06:40,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026389571] [2021-10-13 08:06:40,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026389571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:06:40,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:06:40,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 08:06:40,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701096381] [2021-10-13 08:06:40,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 08:06:40,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:06:40,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 08:06:40,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:06:40,070 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.75) internal successors, (133), 77 states have internal predecessors, (133), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 08:06:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:06:40,130 INFO L93 Difference]: Finished difference Result 154 states and 263 transitions. [2021-10-13 08:06:40,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 08:06:40,131 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-13 08:06:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:06:40,144 INFO L225 Difference]: With dead ends: 154 [2021-10-13 08:06:40,144 INFO L226 Difference]: Without dead ends: 75 [2021-10-13 08:06:40,147 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:06:40,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-13 08:06:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-13 08:06:40,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 74 states have internal predecessors, (104), 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) [2021-10-13 08:06:40,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2021-10-13 08:06:40,194 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 10 [2021-10-13 08:06:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:06:40,195 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2021-10-13 08:06:40,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 08:06:40,195 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2021-10-13 08:06:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 08:06:40,196 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:06:40,196 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:06:40,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 08:06:40,197 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:06:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:06:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash -417694818, now seen corresponding path program 1 times [2021-10-13 08:06:40,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:06:40,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453339097] [2021-10-13 08:06:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:06:40,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:06:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:06:40,336 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 08:06:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:06:40,465 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 08:06:40,466 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 08:06:40,468 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:06:40,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 08:06:40,476 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:06:40,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:06:40 BoogieIcfgContainer [2021-10-13 08:06:40,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:06:40,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:06:40,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:06:40,539 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:06:40,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:06:39" (3/4) ... [2021-10-13 08:06:40,545 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 08:06:40,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:06:40,548 INFO L168 Benchmark]: Toolchain (without parser) took 2489.44 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 53.3 MB in the beginning and 73.4 MB in the end (delta: -20.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:40,549 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 70.3 MB in the beginning and 70.3 MB in the end (delta: 43.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:06:40,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.24 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 53.1 MB in the beginning and 97.1 MB in the end (delta: -44.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:40,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.90 ms. Allocated memory is still 119.5 MB. Free memory was 97.0 MB in the beginning and 93.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:40,559 INFO L168 Benchmark]: Boogie Preprocessor took 59.46 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 90.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:40,560 INFO L168 Benchmark]: RCFGBuilder took 1117.84 ms. Allocated memory is still 119.5 MB. Free memory was 90.7 MB in the beginning and 53.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:06:40,560 INFO L168 Benchmark]: TraceAbstraction took 884.92 ms. Allocated memory is still 119.5 MB. Free memory was 52.5 MB in the beginning and 73.8 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:06:40,561 INFO L168 Benchmark]: Witness Printer took 7.11 ms. Allocated memory is still 119.5 MB. Free memory was 73.8 MB in the beginning and 73.4 MB in the end (delta: 320.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:06:40,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 70.3 MB in the beginning and 70.3 MB in the end (delta: 43.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 351.24 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 53.1 MB in the beginning and 97.1 MB in the end (delta: -44.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.90 ms. Allocated memory is still 119.5 MB. Free memory was 97.0 MB in the beginning and 93.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.46 ms. Allocated memory is still 119.5 MB. Free memory was 93.5 MB in the beginning and 90.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1117.84 ms. Allocated memory is still 119.5 MB. Free memory was 90.7 MB in the beginning and 53.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 884.92 ms. Allocated memory is still 119.5 MB. Free memory was 52.5 MB in the beginning and 73.8 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.11 ms. Allocated memory is still 119.5 MB. Free memory was 73.8 MB in the beginning and 73.4 MB in the end (delta: 320.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 230, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 218, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L218] float x = -0.0f; [L219] float y = __VERIFIER_nondet_float(); [L226] COND TRUE y > 0.0f [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L227] float res = __ieee754_atan2f(y, x); [L230] COND TRUE res != pi_o_2 VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L231] reach_error() VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 749.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 20.9ms, AutomataDifference: 99.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 108 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 32.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.4ms SsaConstructionTime, 179.5ms SatisfiabilityAnalysisTime, 104.4ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-10-13 08:06:40,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:06:43,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:06:43,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:06:43,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:06:43,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:06:43,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:06:43,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:06:43,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:06:43,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:06:43,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:06:43,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:06:43,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:06:43,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:06:43,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:06:43,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:06:43,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:06:43,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:06:43,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:06:43,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:06:43,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:06:43,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:06:43,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:06:43,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:06:43,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:06:43,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:06:43,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:06:43,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:06:43,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:06:43,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:06:43,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:06:43,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:06:43,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:06:43,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:06:43,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:06:43,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:06:43,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:06:43,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:06:43,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:06:43,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:06:43,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:06:43,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:06:43,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 08:06:43,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:06:43,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:06:43,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:06:43,247 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:06:43,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:06:43,247 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:06:43,247 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:06:43,247 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:06:43,248 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:06:43,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:06:43,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:06:43,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:06:43,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:06:43,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:06:43,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:06:43,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:06:43,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:06:43,250 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:06:43,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:06:43,250 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:06:43,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:06:43,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:06:43,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:06:43,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:06:43,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:06:43,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:06:43,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:06:43,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:06:43,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:06:43,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:06:43,252 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:06:43,253 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:06:43,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:06:43,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:06:43,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:06:43,253 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_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1efcda3c8e82047a1882f782282ebcbc84855c8e [2021-10-13 08:06:43,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:06:43,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:06:43,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:06:43,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:06:43,695 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:06:43,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-10-13 08:06:43,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/f0774f89b/3413c4501d514340bccc3df5aa88b53b/FLAG3a0224a83 [2021-10-13 08:06:44,313 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:06:44,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-10-13 08:06:44,322 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/f0774f89b/3413c4501d514340bccc3df5aa88b53b/FLAG3a0224a83 [2021-10-13 08:06:44,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/data/f0774f89b/3413c4501d514340bccc3df5aa88b53b [2021-10-13 08:06:44,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:06:44,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:06:44,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:06:44,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:06:44,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:06:44,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:06:44" (1/1) ... [2021-10-13 08:06:44,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4282de14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:44, skipping insertion in model container [2021-10-13 08:06:44,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:06:44" (1/1) ... [2021-10-13 08:06:44,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:06:44,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:06:44,940 WARN L228 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_d50931c8-4082-41c4-a610-3b78080a55e2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-10-13 08:06:44,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:06:45,016 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:06:45,119 WARN L228 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_d50931c8-4082-41c4-a610-3b78080a55e2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-10-13 08:06:45,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:06:45,151 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:06:45,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45 WrapperNode [2021-10-13 08:06:45,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:06:45,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:06:45,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:06:45,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:06:45,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:06:45,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:06:45,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:06:45,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:06:45,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:06:45,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:06:45,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:06:45,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:06:45,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (1/1) ... [2021-10-13 08:06:45,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:06:45,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:06:45,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:06:45,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:06:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-13 08:06:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:06:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:06:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-13 08:06:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 08:06:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:06:45,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:06:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-13 08:06:45,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 08:06:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 08:07:08,909 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:07:08,910 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-13 08:07:08,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:07:08 BoogieIcfgContainer [2021-10-13 08:07:08,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:07:08,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:07:08,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:07:08,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:07:08,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:06:44" (1/3) ... [2021-10-13 08:07:08,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dccbc4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:07:08, skipping insertion in model container [2021-10-13 08:07:08,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:06:45" (2/3) ... [2021-10-13 08:07:08,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dccbc4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:07:08, skipping insertion in model container [2021-10-13 08:07:08,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:07:08" (3/3) ... [2021-10-13 08:07:08,921 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0663a.c [2021-10-13 08:07:08,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:07:08,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:07:09,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:07:09,020 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, mConcurrency=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 [2021-10-13 08:07:09,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:07:09,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 109 states have (on average 1.6972477064220184) internal successors, (185), 110 states have internal predecessors, (185), 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) [2021-10-13 08:07:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 08:07:09,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:07:09,065 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:07:09,066 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:07:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:07:09,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1059404064, now seen corresponding path program 1 times [2021-10-13 08:07:09,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:07:09,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970673472] [2021-10-13 08:07:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:07:09,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:07:09,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:07:09,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:07:09,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:07:09,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:07:09,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:07:09,407 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) 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:608) 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:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-13 08:07:09,416 INFO L168 Benchmark]: Toolchain (without parser) took 24757.09 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 49.5 MB in the beginning and 71.8 MB in the end (delta: -22.3 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:07:09,417 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 67.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:07:09,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.72 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 47.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:07:09,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.90 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 43.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:07:09,422 INFO L168 Benchmark]: Boogie Preprocessor took 114.87 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 40.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:07:09,423 INFO L168 Benchmark]: RCFGBuilder took 23541.74 ms. Allocated memory is still 67.1 MB. Free memory was 40.2 MB in the beginning and 29.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:07:09,430 INFO L168 Benchmark]: TraceAbstraction took 499.50 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 29.0 MB in the beginning and 71.8 MB in the end (delta: -42.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:07:09,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 67.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.72 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 47.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.90 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 43.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 114.87 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 40.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 23541.74 ms. Allocated memory is still 67.1 MB. Free memory was 40.2 MB in the beginning and 29.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 499.50 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 29.0 MB in the beginning and 71.8 MB in the end (delta: -42.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 08:07:09,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50931c8-4082-41c4-a610-3b78080a55e2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...