./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh --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 22f65bf7dc6be28e766baed8be33578320f214b34c577175c650fbf680c0e83b --- 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-2329fc7 [2022-12-14 04:39:59,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:39:59,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:39:59,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:39:59,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:39:59,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:39:59,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:39:59,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:39:59,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:39:59,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:39:59,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:39:59,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:39:59,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:39:59,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:39:59,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:39:59,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:39:59,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:39:59,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:39:59,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:39:59,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:39:59,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:39:59,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:39:59,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:39:59,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:39:59,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:39:59,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:39:59,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:39:59,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:39:59,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:39:59,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:39:59,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:39:59,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:39:59,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:39:59,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:39:59,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:39:59,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:39:59,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:39:59,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:39:59,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:39:59,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:39:59,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:39:59,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 04:39:59,802 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:39:59,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:39:59,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:39:59,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:39:59,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:39:59,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:39:59,803 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:39:59,803 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:39:59,803 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:39:59,804 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:39:59,804 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:39:59,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:39:59,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:39:59,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:39:59,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:39:59,806 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:39:59,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:39:59,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:39:59,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:39:59,807 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22f65bf7dc6be28e766baed8be33578320f214b34c577175c650fbf680c0e83b [2022-12-14 04:39:59,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:39:59,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:39:59,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:39:59,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:39:59,995 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:39:59,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2022-12-14 04:40:02,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:40:02,749 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:40:02,750 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2022-12-14 04:40:02,756 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data/c3866ece7/1c37e1f5ec91457090c4a844d554303e/FLAG61dd4fece [2022-12-14 04:40:02,767 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data/c3866ece7/1c37e1f5ec91457090c4a844d554303e [2022-12-14 04:40:02,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:40:02,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:40:02,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:40:02,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:40:02,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:40:02,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:02,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c072fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02, skipping insertion in model container [2022-12-14 04:40:02,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:02,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:40:02,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:40:02,927 WARN L237 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c[1753,1766] [2022-12-14 04:40:02,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:40:02,940 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:40:02,963 WARN L237 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c[1753,1766] [2022-12-14 04:40:02,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:40:02,973 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:40:02,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02 WrapperNode [2022-12-14 04:40:02,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:40:02,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:40:02,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:40:02,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:40:02,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:02,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,008 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-12-14 04:40:03,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:40:03,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:40:03,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:40:03,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:40:03,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,029 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:40:03,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:40:03,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:40:03,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:40:03,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (1/1) ... [2022-12-14 04:40:03,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:40:03,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:40:03,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:40:03,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:40:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:40:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:40:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:40:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-12-14 04:40:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 04:40:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-12-14 04:40:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:40:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:40:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 04:40:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:40:03,148 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:40:03,150 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:40:03,303 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:40:03,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:40:03,378 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 04:40:03,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:40:03 BoogieIcfgContainer [2022-12-14 04:40:03,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:40:03,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:40:03,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:40:03,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:40:03,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:40:02" (1/3) ... [2022-12-14 04:40:03,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301d923d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:40:03, skipping insertion in model container [2022-12-14 04:40:03,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:02" (2/3) ... [2022-12-14 04:40:03,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301d923d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:40:03, skipping insertion in model container [2022-12-14 04:40:03,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:40:03" (3/3) ... [2022-12-14 04:40:03,394 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2022-12-14 04:40:03,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:40:03,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 04:40:03,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:40:03,449 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;@1fa6054b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:40:03,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 04:40:03,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 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) [2022-12-14 04:40:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 04:40:03,456 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:40:03,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:40:03,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:40:03,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:40:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1053820573, now seen corresponding path program 1 times [2022-12-14 04:40:03,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:40:03,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610144776] [2022-12-14 04:40:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:40:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:40:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:40:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:40:03,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:40:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610144776] [2022-12-14 04:40:03,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610144776] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:40:03,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:40:03,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:40:03,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040424733] [2022-12-14 04:40:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:40:03,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 04:40:03,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:40:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 04:40:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:40:03,593 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-12-14 04:40:03,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:40:03,619 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2022-12-14 04:40:03,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 04:40:03,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-12-14 04:40:03,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:40:03,627 INFO L225 Difference]: With dead ends: 39 [2022-12-14 04:40:03,627 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 04:40:03,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:40:03,631 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:40:03,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:40:03,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 04:40:03,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 04:40:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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) [2022-12-14 04:40:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-12-14 04:40:03,654 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2022-12-14 04:40:03,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:40:03,654 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-12-14 04:40:03,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-12-14 04:40:03,655 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-12-14 04:40:03,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 04:40:03,655 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:40:03,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:40:03,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:40:03,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:40:03,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:40:03,656 INFO L85 PathProgramCache]: Analyzing trace with hash 121214260, now seen corresponding path program 1 times [2022-12-14 04:40:03,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:40:03,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724106337] [2022-12-14 04:40:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:40:03,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:40:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:40:03,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:40:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:40:03,726 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 04:40:03,726 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:40:03,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 04:40:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 04:40:03,732 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 04:40:03,734 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:40:03,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:40:03 BoogieIcfgContainer [2022-12-14 04:40:03,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:40:03,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:40:03,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:40:03,749 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:40:03,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:40:03" (3/4) ... [2022-12-14 04:40:03,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:40:03,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:40:03,753 INFO L158 Benchmark]: Toolchain (without parser) took 982.52ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 88.0MB in the end (delta: 16.2MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-12-14 04:40:03,753 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:40:03,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.32ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 92.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 04:40:03,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.99ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 91.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:40:03,754 INFO L158 Benchmark]: Boogie Preprocessor took 21.98ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 89.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:40:03,754 INFO L158 Benchmark]: RCFGBuilder took 348.71ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 71.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 04:40:03,755 INFO L158 Benchmark]: TraceAbstraction took 359.72ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 88.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 04:40:03,755 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 142.6MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:40:03,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.32ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 92.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.99ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 91.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.98ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 89.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.71ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 71.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 359.72ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 88.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 142.6MB. Free memory is still 88.0MB. 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: 83]: 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 82, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 78, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; [L78] float x = -0.0f; [L79] CALL, EXPR ceil_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000008, huge_ceil=1000000000000000000000000000000, x=1000000000000000000000000000008] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000008, huge_ceil=1000000000000000000000000000000, i=-18014398509481984, i0=6, j0=2147483521, x=1000000000000000000000000000008] [L25] COND FALSE !(j0 < 23) [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [\old(x)=1000000000000000000000000000008, \result=1000000000000000000000000000008, huge_ceil=1000000000000000000000000000000, i=-18014398509481984, i0=6, j0=2147483521, x=1000000000000000000000000000008] [L79] RET, EXPR ceil_float(x) [L79] float res = ceil_float(x); [L82] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000, res=1000000000000000000000000000008, res == -0.0f && __signbit_float(res) == 1=0, x=1000000000000000000000000000008] [L82] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L83] reach_error() VAL [huge_ceil=1000000000000000000000000000000, res=1000000000000000000000000000008, x=1000000000000000000000000000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2022-12-14 04:40:03,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh --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 22f65bf7dc6be28e766baed8be33578320f214b34c577175c650fbf680c0e83b --- 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-2329fc7 [2022-12-14 04:40:05,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:40:05,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:40:05,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:40:05,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:40:05,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:40:05,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:40:05,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:40:05,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:40:05,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:40:05,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:40:05,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:40:05,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:40:05,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:40:05,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:40:05,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:40:05,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:40:05,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:40:05,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:40:05,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:40:05,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:40:05,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:40:05,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:40:05,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:40:05,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:40:05,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:40:05,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:40:05,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:40:05,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:40:05,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:40:05,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:40:05,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:40:05,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:40:05,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:40:05,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:40:05,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:40:05,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:40:05,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:40:05,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:40:05,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:40:05,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:40:05,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 04:40:05,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:40:05,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:40:05,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:40:05,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:40:05,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:40:05,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:40:05,520 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:40:05,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:40:05,520 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:40:05,520 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:40:05,520 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:40:05,521 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:40:05,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:40:05,522 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 04:40:05,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 04:40:05,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:40:05,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:40:05,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:40:05,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:40:05,522 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 04:40:05,523 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 04:40:05,523 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 04:40:05,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 04:40:05,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:40:05,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:40:05,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:40:05,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:40:05,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 04:40:05,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:40:05,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:40:05,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:40:05,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:40:05,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:40:05,525 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 04:40:05,525 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 04:40:05,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:40:05,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:40:05,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 04:40:05,525 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22f65bf7dc6be28e766baed8be33578320f214b34c577175c650fbf680c0e83b [2022-12-14 04:40:05,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:40:05,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:40:05,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:40:05,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:40:05,751 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:40:05,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2022-12-14 04:40:08,383 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:40:08,524 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:40:08,525 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2022-12-14 04:40:08,531 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data/f954fce25/8c5698ff451c4d5b8c442808ddb37e8a/FLAG607ed7576 [2022-12-14 04:40:08,542 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/data/f954fce25/8c5698ff451c4d5b8c442808ddb37e8a [2022-12-14 04:40:08,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:40:08,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:40:08,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:40:08,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:40:08,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:40:08,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7573c3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08, skipping insertion in model container [2022-12-14 04:40:08,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:40:08,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:40:08,705 WARN L237 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c[1753,1766] [2022-12-14 04:40:08,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:40:08,720 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:40:08,737 WARN L237 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c[1753,1766] [2022-12-14 04:40:08,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:40:08,752 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:40:08,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08 WrapperNode [2022-12-14 04:40:08,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:40:08,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:40:08,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:40:08,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:40:08,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,788 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-12-14 04:40:08,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:40:08,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:40:08,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:40:08,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:40:08,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,816 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:40:08,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:40:08,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:40:08,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:40:08,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (1/1) ... [2022-12-14 04:40:08,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:40:08,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:40:08,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:40:08,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:40:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:40:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 04:40:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:40:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-12-14 04:40:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 04:40:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:40:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:40:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-12-14 04:40:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 04:40:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:40:08,952 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:40:08,954 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:40:09,336 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:40:09,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:40:09,344 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 04:40:09,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:40:09 BoogieIcfgContainer [2022-12-14 04:40:09,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:40:09,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:40:09,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:40:09,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:40:09,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:40:08" (1/3) ... [2022-12-14 04:40:09,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72954260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:40:09, skipping insertion in model container [2022-12-14 04:40:09,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:40:08" (2/3) ... [2022-12-14 04:40:09,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72954260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:40:09, skipping insertion in model container [2022-12-14 04:40:09,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:40:09" (3/3) ... [2022-12-14 04:40:09,354 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2022-12-14 04:40:09,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:40:09,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 04:40:09,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:40:09,414 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;@6dd88335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:40:09,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 04:40:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2022-12-14 04:40:09,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 04:40:09,423 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:40:09,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:40:09,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:40:09,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:40:09,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2022-12-14 04:40:09,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:40:09,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282929158] [2022-12-14 04:40:09,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:40:09,438 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 [2022-12-14 04:40:09,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:40:09,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:40:09,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:40:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:40:09,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 04:40:09,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:40:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:40:09,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:40:09,544 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:40:09,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282929158] [2022-12-14 04:40:09,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282929158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:40:09,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:40:09,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:40:09,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966201997] [2022-12-14 04:40:09,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:40:09,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 04:40:09,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:40:09,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 04:40:09,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:40:09,580 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2022-12-14 04:40:09,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:40:09,598 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2022-12-14 04:40:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 04:40:09,600 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 [2022-12-14 04:40:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:40:09,608 INFO L225 Difference]: With dead ends: 58 [2022-12-14 04:40:09,608 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 04:40:09,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 04:40:09,614 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:40:09,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:40:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 04:40:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 04:40:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 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) [2022-12-14 04:40:09,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-12-14 04:40:09,650 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2022-12-14 04:40:09,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:40:09,651 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-12-14 04:40:09,651 INFO L496 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) [2022-12-14 04:40:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-12-14 04:40:09,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 04:40:09,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:40:09,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:40:09,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 0 [2022-12-14 04:40:09,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:40:09,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:40:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:40:09,856 INFO L85 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2022-12-14 04:40:09,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:40:09,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386908977] [2022-12-14 04:40:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:40:09,859 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 [2022-12-14 04:40:09,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:40:09,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:40:09,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 04:40:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:40:10,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 04:40:10,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:40:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:40:10,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 04:40:10,111 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 04:40:10,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386908977] [2022-12-14 04:40:10,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386908977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:40:10,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:40:10,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:40:10,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273008888] [2022-12-14 04:40:10,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:40:10,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:40:10,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 04:40:10,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:40:10,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:40:10,114 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-12-14 04:40:10,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:40:10,232 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2022-12-14 04:40:10,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:40:10,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2022-12-14 04:40:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:40:10,233 INFO L225 Difference]: With dead ends: 39 [2022-12-14 04:40:10,233 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 04:40:10,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 04:40:10,235 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 53 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 04:40:10,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 17 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 04:40:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 04:40:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 04:40:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-12-14 04:40:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-12-14 04:40:10,242 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2022-12-14 04:40:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:40:10,242 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-12-14 04:40:10,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-12-14 04:40:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-12-14 04:40:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 04:40:10,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:40:10,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:40:10,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-14 04:40:10,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:40:10,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 04:40:10,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:40:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2022-12-14 04:40:10,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:40:10,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179816011] [2022-12-14 04:40:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:40:10,451 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 [2022-12-14 04:40:10,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:40:10,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:40:10,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 (4)] Waiting until timeout for monitored process [2022-12-14 04:40:10,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 (4)] Forceful destruction successful, exit code 139 [2022-12-14 04:40:10,654 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 (4) 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:337) 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 (4) 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 [2022-12-14 04:40:10,656 INFO L158 Benchmark]: Toolchain (without parser) took 2110.53ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 32.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-12-14 04:40:10,657 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:40:10,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.13ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 49.9MB in the end (delta: -3.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-12-14 04:40:10,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.95ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 48.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:40:10,658 INFO L158 Benchmark]: Boogie Preprocessor took 30.90ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 46.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:40:10,658 INFO L158 Benchmark]: RCFGBuilder took 526.62ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 48.4MB in the end (delta: -2.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-12-14 04:40:10,658 INFO L158 Benchmark]: TraceAbstraction took 1306.69ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 32.9MB in the end (delta: 14.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-12-14 04:40:10,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.13ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 49.9MB in the end (delta: -3.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.95ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 48.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.90ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 46.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 526.62ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 48.4MB in the end (delta: -2.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1306.69ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 32.9MB in the end (delta: 14.9MB). Peak memory consumption was 13.6MB. 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 (4) 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 (4) 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. [2022-12-14 04:40:10,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 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_43e26fcc-72d4-4a7d-af52-180fb59c111a/bin/utaipan-gh47qXpMRh/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 (4) with exit command (exit)) Received EOF on stdin. No stderr output.