./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2_alt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_alt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS --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 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:53:31,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:53:31,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:53:31,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:53:31,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:53:31,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:53:31,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:53:31,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:53:31,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:53:31,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:53:31,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:53:31,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:53:31,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:53:31,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:53:31,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:53:31,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:53:31,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:53:31,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:53:31,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:53:31,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:53:31,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:53:31,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:53:31,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:53:31,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:53:31,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:53:31,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:53:31,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:53:31,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:53:31,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:53:31,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:53:31,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:53:31,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:53:31,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:53:31,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:53:31,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:53:31,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:53:31,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:53:31,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:53:31,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:53:31,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:53:31,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:53:31,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:53:31,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:53:31,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:53:31,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:53:31,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:53:31,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:53:31,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:53:31,710 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:53:31,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:53:31,710 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:53:31,710 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:53:31,712 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:53:31,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:53:31,712 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:53:31,712 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:53:31,713 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:53:31,713 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:53:31,713 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:53:31,713 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:53:31,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:53:31,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:53:31,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:53:31,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:53:31,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:53:31,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:53:31,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:53:31,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:53:31,718 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:53:31,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:53:31,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:53:31,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:53:31,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:53:31,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:53:31,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:31,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:53:31,720 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:53:31,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:53:31,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:53:31,721 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:53:31,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:53:31,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:53:31,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:53:31,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 [2022-11-19 07:53:32,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:53:32,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:53:32,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:53:32,104 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:53:32,104 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:53:32,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-benchs/filter2_alt.c [2022-11-19 07:53:32,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/b4f563d44/b8dcb8f80ff943c4be09e4c46b70bba4/FLAG28f58e1ba [2022-11-19 07:53:32,715 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:53:32,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/sv-benchmarks/c/float-benchs/filter2_alt.c [2022-11-19 07:53:32,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/b4f563d44/b8dcb8f80ff943c4be09e4c46b70bba4/FLAG28f58e1ba [2022-11-19 07:53:33,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/b4f563d44/b8dcb8f80ff943c4be09e4c46b70bba4 [2022-11-19 07:53:33,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:53:33,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:53:33,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:33,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:53:33,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:53:33,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f8ba62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33, skipping insertion in model container [2022-11-19 07:53:33,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:53:33,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:53:33,349 WARN L234 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_f9faad57-84b2-429b-83ca-44b7763489cb/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2022-11-19 07:53:33,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:33,400 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:53:33,419 WARN L234 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_f9faad57-84b2-429b-83ca-44b7763489cb/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2022-11-19 07:53:33,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:33,469 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:53:33,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33 WrapperNode [2022-11-19 07:53:33,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:33,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:33,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:53:33,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:53:33,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,539 INFO L138 Inliner]: procedures = 19, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2022-11-19 07:53:33,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:33,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:53:33,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:53:33,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:53:33,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:53:33,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:53:33,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:53:33,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:53:33,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (1/1) ... [2022-11-19 07:53:33,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:33,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:33,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:53:33,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:53:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:53:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-11-19 07:53:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-11-19 07:53:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:53:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-19 07:53:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-19 07:53:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:53:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:53:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-19 07:53:33,863 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:53:33,865 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:53:34,078 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:53:34,136 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:53:34,137 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:53:34,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:34 BoogieIcfgContainer [2022-11-19 07:53:34,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:53:34,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:53:34,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:53:34,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:53:34,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:33" (1/3) ... [2022-11-19 07:53:34,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7e15c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:34, skipping insertion in model container [2022-11-19 07:53:34,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:33" (2/3) ... [2022-11-19 07:53:34,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7e15c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:34, skipping insertion in model container [2022-11-19 07:53:34,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:34" (3/3) ... [2022-11-19 07:53:34,156 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2022-11-19 07:53:34,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:53:34,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:53:34,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:53:34,315 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1279c468, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:53:34,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:53:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-19 07:53:34,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 07:53:34,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:34,331 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:34,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:34,340 INFO L85 PathProgramCache]: Analyzing trace with hash -330691237, now seen corresponding path program 1 times [2022-11-19 07:53:34,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:34,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816174872] [2022-11-19 07:53:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:34,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:34,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:53:34,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:34,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816174872] [2022-11-19 07:53:34,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816174872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:34,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:34,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:34,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322928298] [2022-11-19 07:53:34,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:34,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:34,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:34,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:34,834 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-19 07:53:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:34,917 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2022-11-19 07:53:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:34,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 13 [2022-11-19 07:53:34,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:34,932 INFO L225 Difference]: With dead ends: 33 [2022-11-19 07:53:34,932 INFO L226 Difference]: Without dead ends: 21 [2022-11-19 07:53:34,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:34,940 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:34,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:53:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-19 07:53:34,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-11-19 07:53:34,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:53:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-19 07:53:34,983 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 13 [2022-11-19 07:53:34,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:34,983 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-19 07:53:34,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-19 07:53:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-19 07:53:34,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:53:34,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:34,985 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:34,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:53:34,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1566599106, now seen corresponding path program 1 times [2022-11-19 07:53:34,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:34,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942458288] [2022-11-19 07:53:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:34,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:53:35,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:53:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:53:35,110 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:53:35,110 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:53:35,112 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:53:35,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:53:35,119 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 07:53:35,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:53:35,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:53:35 BoogieIcfgContainer [2022-11-19 07:53:35,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:53:35,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:53:35,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:53:35,156 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:53:35,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:34" (3/4) ... [2022-11-19 07:53:35,159 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:53:35,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:53:35,161 INFO L158 Benchmark]: Toolchain (without parser) took 2084.19ms. Allocated memory is still 146.8MB. Free memory was 115.8MB in the beginning and 108.6MB in the end (delta: 7.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-19 07:53:35,161 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.7MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:53:35,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.80ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 122.8MB in the end (delta: -7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:53:35,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.43ms. Allocated memory is still 146.8MB. Free memory was 122.8MB in the beginning and 121.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:53:35,163 INFO L158 Benchmark]: Boogie Preprocessor took 59.96ms. Allocated memory is still 146.8MB. Free memory was 121.3MB in the beginning and 119.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:53:35,163 INFO L158 Benchmark]: RCFGBuilder took 538.17ms. Allocated memory is still 146.8MB. Free memory was 119.6MB in the beginning and 106.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:53:35,164 INFO L158 Benchmark]: TraceAbstraction took 1012.42ms. Allocated memory is still 146.8MB. Free memory was 105.9MB in the beginning and 108.6MB in the end (delta: -2.8MB). Peak memory consumption was 442.8kB. Max. memory is 16.1GB. [2022-11-19 07:53:35,164 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 146.8MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:53:35,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.7MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.80ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 122.8MB in the end (delta: -7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.43ms. Allocated memory is still 146.8MB. Free memory was 122.8MB in the beginning and 121.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.96ms. Allocated memory is still 146.8MB. Free memory was 121.3MB in the beginning and 119.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.17ms. Allocated memory is still 146.8MB. Free memory was 119.6MB in the beginning and 106.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1012.42ms. Allocated memory is still 146.8MB. Free memory was 105.9MB in the beginning and 108.6MB in the end (delta: -2.8MB). Peak memory consumption was 442.8kB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 146.8MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: 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 43, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L20] float P, X; [L19] BOOLEAN INIT; [L32] static float E[2], S[2]; [L20] float P, X; [L52] CALL, EXPR RANDOM_INPUT() VAL [E={5:0}, INIT=0, P=0, S={4:0}, X=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; [L52] RET, EXPR RANDOM_INPUT() VAL [E={5:0}, INIT=0, P=0, RANDOM_INPUT()=65, S={4:0}, X=0] [L52] X = RANDOM_INPUT() [L53] INIT = TRUE VAL [E={5:0}, INIT=1, P=0, S={4:0}, X=65] [L54] COND TRUE \read(TRUE) VAL [E={5:0}, INIT=1, P=0, S={4:0}, X=65] [L55] CALL, EXPR RANDOM_INPUT() VAL [E={5:0}, INIT=1, P=0, S={4:0}, X=65] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; [L55] RET, EXPR RANDOM_INPUT() VAL [E={5:0}, INIT=1, P=0, RANDOM_INPUT()=66, S={4:0}, X=65] [L55] X = RANDOM_INPUT() [L56] CALL filter2 () [L33] COND TRUE \read(INIT) [L34] S[0] = X [L35] P = X [L36] E[0] = X VAL [E={5:0}, INIT=1, P=66, S={4:0}, X=66] [L46] EXPR E[0] [L46] E[1] = E[0] [L46] E[0] = X [L47] EXPR S[0] [L47] S[1] = S[0] [L47] S[0] = P [L56] RET filter2 () [L57] INIT = FALSE VAL [E={5:0}, INIT=0, P=66, S={4:0}, X=66] [L54] COND TRUE \read(TRUE) VAL [E={5:0}, INIT=0, P=66, S={4:0}, X=66] [L55] CALL, EXPR RANDOM_INPUT() VAL [E={5:0}, INIT=0, P=66, S={4:0}, X=66] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -10.f && x <= 10.f) [L12] COND FALSE !(!cond) [L26] RET assume_abort_if_not(x >= -10.f && x <= 10.f) [L27] return x; [L55] RET, EXPR RANDOM_INPUT() VAL [E={5:0}, INIT=0, P=66, RANDOM_INPUT()=64, S={4:0}, X=66] [L55] X = RANDOM_INPUT() [L56] CALL filter2 () [L33] COND FALSE !(\read(INIT)) [L39] EXPR E[0] [L40] EXPR E[1] [L41] EXPR S[0] [L42] EXPR S[1] [L38-L42] P = (((((0.4677826f * X) - (E[0] * 0.7700725f)) + (E[1] * 0.4344376f)) + (S[0] * 1.5419f)) - (S[1] * 0.6740477f)) [L43] CALL __VERIFIER_assert(P >= -15.f && P <= 15.f) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, E={5:0}, INIT=0, S={4:0}, X=64] [L14] reach_error() VAL [\old(cond)=0, cond=0, E={5:0}, INIT=0, S={4:0}, X=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 [2022-11-19 07:53:35,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_alt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS --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 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:53:37,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:53:37,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:53:37,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:53:37,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:53:37,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:53:37,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:53:37,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:53:37,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:53:37,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:53:37,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:53:37,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:53:37,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:53:37,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:53:37,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:53:37,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:53:37,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:53:37,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:53:37,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:53:37,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:53:37,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:53:37,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:53:37,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:53:37,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:53:37,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:53:37,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:53:37,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:53:37,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:53:37,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:53:37,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:53:37,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:53:37,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:53:37,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:53:37,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:53:37,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:53:37,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:53:37,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:53:37,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:53:37,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:53:37,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:53:37,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:53:37,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:53:37,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:53:37,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:53:37,840 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:53:37,840 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:53:37,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:53:37,841 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:53:37,842 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:53:37,842 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:53:37,842 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:53:37,843 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:53:37,843 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:53:37,843 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:53:37,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:53:37,844 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:53:37,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:53:37,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:53:37,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:53:37,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:53:37,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:53:37,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:53:37,846 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:53:37,847 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:53:37,847 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:53:37,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:53:37,847 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:53:37,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:53:37,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:53:37,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:53:37,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:53:37,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:37,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:53:37,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:53:37,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:53:37,850 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:53:37,850 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:53:37,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:53:37,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:53:37,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:53:37,851 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_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bc48f0b37b49094aa2ed7125525fbb7b9a95c5af6fff8426a24c4fcf99bb295 [2022-11-19 07:53:38,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:53:38,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:53:38,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:53:38,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:53:38,263 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:53:38,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-benchs/filter2_alt.c [2022-11-19 07:53:38,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/fd2952e78/fb6ec27fd0bb4d5fa4e29b11572a9c32/FLAGb30e9d1e6 [2022-11-19 07:53:39,074 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:53:39,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/sv-benchmarks/c/float-benchs/filter2_alt.c [2022-11-19 07:53:39,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/fd2952e78/fb6ec27fd0bb4d5fa4e29b11572a9c32/FLAGb30e9d1e6 [2022-11-19 07:53:39,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/data/fd2952e78/fb6ec27fd0bb4d5fa4e29b11572a9c32 [2022-11-19 07:53:39,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:53:39,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:53:39,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:39,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:53:39,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:53:39,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73bf8d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39, skipping insertion in model container [2022-11-19 07:53:39,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:53:39,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:53:39,585 WARN L234 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_f9faad57-84b2-429b-83ca-44b7763489cb/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2022-11-19 07:53:39,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:39,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:53:39,641 WARN L234 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_f9faad57-84b2-429b-83ca-44b7763489cb/sv-benchmarks/c/float-benchs/filter2_alt.c[631,644] [2022-11-19 07:53:39,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:53:39,677 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:53:39,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39 WrapperNode [2022-11-19 07:53:39,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:53:39,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:39,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:53:39,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:53:39,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,725 INFO L138 Inliner]: procedures = 20, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-11-19 07:53:39,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:53:39,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:53:39,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:53:39,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:53:39,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:53:39,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:53:39,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:53:39,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:53:39,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (1/1) ... [2022-11-19 07:53:39,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:53:39,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:39,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:53:39,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:53:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:53:39,898 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2022-11-19 07:53:39,899 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2022-11-19 07:53:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-19 07:53:39,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:53:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-19 07:53:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:53:39,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:53:39,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-19 07:53:40,067 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:53:40,069 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:53:42,453 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:53:42,462 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:53:42,462 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:53:42,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:42 BoogieIcfgContainer [2022-11-19 07:53:42,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:53:42,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:53:42,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:53:42,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:53:42,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:39" (1/3) ... [2022-11-19 07:53:42,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b418cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:42, skipping insertion in model container [2022-11-19 07:53:42,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:39" (2/3) ... [2022-11-19 07:53:42,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b418cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:42, skipping insertion in model container [2022-11-19 07:53:42,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:42" (3/3) ... [2022-11-19 07:53:42,476 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2022-11-19 07:53:42,503 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:53:42,503 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:53:42,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:53:42,590 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45dca4b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:53:42,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:53:42,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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) [2022-11-19 07:53:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:53:42,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:42,610 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:42,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:42,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:42,617 INFO L85 PathProgramCache]: Analyzing trace with hash -254494899, now seen corresponding path program 1 times [2022-11-19 07:53:42,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:53:42,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260123609] [2022-11-19 07:53:42,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:42,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:53:42,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:53:42,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:53:42,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:53:42,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 139 [2022-11-19 07:53:42,815 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: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-19 07:53:42,822 INFO L158 Benchmark]: Toolchain (without parser) took 3440.59ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 47.9MB in the end (delta: 871.1kB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-11-19 07:53:42,823 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 49.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:53:42,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.35ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 37.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:53:42,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.62ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 35.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:53:42,825 INFO L158 Benchmark]: Boogie Preprocessor took 76.72ms. Allocated memory is still 67.1MB. Free memory was 35.7MB in the beginning and 51.6MB in the end (delta: -16.0MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-11-19 07:53:42,826 INFO L158 Benchmark]: RCFGBuilder took 2661.27ms. Allocated memory is still 67.1MB. Free memory was 51.6MB in the beginning and 38.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:53:42,827 INFO L158 Benchmark]: TraceAbstraction took 352.45ms. Allocated memory is still 67.1MB. Free memory was 38.0MB in the beginning and 47.9MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:53:42,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory was 49.1MB in the beginning and 49.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.35ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 37.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.62ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 35.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.72ms. Allocated memory is still 67.1MB. Free memory was 35.7MB in the beginning and 51.6MB in the end (delta: -16.0MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2661.27ms. Allocated memory is still 67.1MB. Free memory was 51.6MB in the beginning and 38.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 352.45ms. Allocated memory is still 67.1MB. Free memory was 38.0MB in the beginning and 47.9MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 07:53:42,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/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: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9faad57-84b2-429b-83ca-44b7763489cb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.