./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.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_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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_756e685c-7559-4e8f-bd5e-0063af57d52f/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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- 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 14:54:41,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:54:41,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:54:41,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:54:41,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:54:41,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:54:41,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:54:41,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:54:41,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:54:41,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:54:41,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:54:41,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:54:41,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:54:41,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:54:41,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:54:41,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:54:41,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:54:41,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:54:41,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:54:41,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:54:41,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:54:41,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:54:41,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:54:41,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:54:41,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:54:41,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:54:41,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:54:41,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:54:41,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:54:41,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:54:41,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:54:41,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:54:41,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:54:41,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:54:41,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:54:41,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:54:41,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:54:41,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:54:41,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:54:41,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:54:41,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:54:41,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:54:41,139 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:54:41,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:54:41,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:54:41,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:54:41,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:54:41,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:54:41,141 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:54:41,141 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:54:41,141 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:54:41,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:54:41,142 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:54:41,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:54:41,142 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:54:41,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:54:41,143 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:54:41,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:54:41,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:54:41,143 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:54:41,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:54:41,144 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:54:41,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:54:41,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:54:41,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:54:41,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:54:41,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:54:41,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:54:41,145 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:54:41,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:54:41,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:54:41,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:54:41,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:54:41,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:54:41,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:54:41,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:54:41,146 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:54:41,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:54:41,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:54:41,147 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:54:41,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:54:41,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:54:41,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:54:41,147 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_756e685c-7559-4e8f-bd5e-0063af57d52f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-12-14 14:54:41,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:54:41,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:54:41,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:54:41,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:54:41,353 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:54:41,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-14 14:54:43,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:54:44,097 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:54:44,098 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-14 14:54:44,102 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data/d150ab4cf/afe72e14e323421388654860efbc74a8/FLAG74f86fd5f [2022-12-14 14:54:44,526 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data/d150ab4cf/afe72e14e323421388654860efbc74a8 [2022-12-14 14:54:44,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:54:44,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:54:44,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:54:44,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:54:44,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:54:44,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b821da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44, skipping insertion in model container [2022-12-14 14:54:44,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:54:44,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:54:44,658 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_756e685c-7559-4e8f-bd5e-0063af57d52f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-14 14:54:44,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:54:44,671 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:54:44,682 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_756e685c-7559-4e8f-bd5e-0063af57d52f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-14 14:54:44,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:54:44,694 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:54:44,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44 WrapperNode [2022-12-14 14:54:44,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:54:44,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:54:44,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:54:44,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:54:44,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,717 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-12-14 14:54:44,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:54:44,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:54:44,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:54:44,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:54:44,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,728 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:54:44,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:54:44,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:54:44,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:54:44,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (1/1) ... [2022-12-14 14:54:44,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:54:44,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:54:44,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:54:44,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:54:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:54:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:54:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:54:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:54:44,846 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:54:44,848 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:54:44,906 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:54:44,919 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:54:44,919 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:54:44,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:44 BoogieIcfgContainer [2022-12-14 14:54:44,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:54:44,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:54:44,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:54:44,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:54:44,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:54:44" (1/3) ... [2022-12-14 14:54:44,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2658dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:54:44, skipping insertion in model container [2022-12-14 14:54:44,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:44" (2/3) ... [2022-12-14 14:54:44,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2658dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:54:44, skipping insertion in model container [2022-12-14 14:54:44,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:44" (3/3) ... [2022-12-14 14:54:44,930 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-12-14 14:54:44,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:54:44,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:54:44,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:54:44,994 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;@2269c8ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:54:44,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:54:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:54:45,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:54:45,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:45,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:54:45,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:54:45,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:45,006 INFO L85 PathProgramCache]: Analyzing trace with hash 42445, now seen corresponding path program 1 times [2022-12-14 14:54:45,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:45,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81652079] [2022-12-14 14:54:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:45,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:54:45,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:54:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:54:45,106 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:54:45,107 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:54:45,108 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:54:45,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:54:45,113 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:54:45,116 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:54:45,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:54:45 BoogieIcfgContainer [2022-12-14 14:54:45,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:54:45,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:54:45,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:54:45,126 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:54:45,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:44" (3/4) ... [2022-12-14 14:54:45,129 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:54:45,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:54:45,131 INFO L158 Benchmark]: Toolchain (without parser) took 601.05ms. Allocated memory is still 125.8MB. Free memory was 92.5MB in the beginning and 58.7MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 14:54:45,131 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:45,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.59ms. Allocated memory is still 125.8MB. Free memory was 92.5MB in the beginning and 82.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 14:54:45,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.86ms. Allocated memory is still 125.8MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:45,133 INFO L158 Benchmark]: Boogie Preprocessor took 11.18ms. Allocated memory is still 125.8MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:54:45,133 INFO L158 Benchmark]: RCFGBuilder took 192.08ms. Allocated memory is still 125.8MB. Free memory was 80.3MB in the beginning and 72.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 14:54:45,134 INFO L158 Benchmark]: TraceAbstraction took 200.56ms. Allocated memory is still 125.8MB. Free memory was 71.3MB in the beginning and 59.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 14:54:45,135 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 125.8MB. Free memory was 59.0MB in the beginning and 58.7MB in the end (delta: 351.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:45,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.59ms. Allocated memory is still 125.8MB. Free memory was 92.5MB in the beginning and 82.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.86ms. Allocated memory is still 125.8MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.18ms. Allocated memory is still 125.8MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 192.08ms. Allocated memory is still 125.8MB. Free memory was 80.3MB in the beginning and 72.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 200.56ms. Allocated memory is still 125.8MB. Free memory was 71.3MB in the beginning and 59.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 125.8MB. Free memory was 59.0MB in the beginning and 58.7MB in the end (delta: 351.1kB). 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: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 14:54:45,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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_756e685c-7559-4e8f-bd5e-0063af57d52f/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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- 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 14:54:46,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:54:46,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:54:46,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:54:46,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:54:46,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:54:46,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:54:46,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:54:46,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:54:46,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:54:46,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:54:46,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:54:46,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:54:46,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:54:46,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:54:46,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:54:46,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:54:46,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:54:46,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:54:46,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:54:46,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:54:46,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:54:46,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:54:46,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:54:46,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:54:46,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:54:46,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:54:46,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:54:46,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:54:46,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:54:46,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:54:46,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:54:46,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:54:46,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:54:46,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:54:46,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:54:46,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:54:46,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:54:46,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:54:46,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:54:46,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:54:46,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 14:54:46,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:54:46,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:54:46,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:54:46,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:54:46,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:54:46,940 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:54:46,940 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:54:46,940 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:54:46,941 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:54:46,941 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:54:46,941 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:54:46,941 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:54:46,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:54:46,942 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:54:46,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:54:46,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:54:46,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:54:46,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:54:46,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:54:46,943 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:54:46,943 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:54:46,943 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:54:46,943 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:54:46,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:54:46,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:54:46,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:54:46,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:54:46,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:54:46,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:54:46,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:54:46,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:54:46,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:54:46,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:54:46,945 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:54:46,945 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:54:46,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:54:46,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:54:46,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:54:46,946 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_756e685c-7559-4e8f-bd5e-0063af57d52f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2022-12-14 14:54:47,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:54:47,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:54:47,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:54:47,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:54:47,189 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:54:47,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-14 14:54:49,813 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:54:49,955 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:54:49,956 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2022-12-14 14:54:49,961 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data/9547267ef/064d15b287a74bc3af08beb7fde20168/FLAG096fc2b0e [2022-12-14 14:54:49,972 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/data/9547267ef/064d15b287a74bc3af08beb7fde20168 [2022-12-14 14:54:49,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:54:49,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:54:49,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:54:49,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:54:49,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:54:49,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:54:49" (1/1) ... [2022-12-14 14:54:49,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635aaeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:49, skipping insertion in model container [2022-12-14 14:54:49,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:54:49" (1/1) ... [2022-12-14 14:54:49,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:54:49,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:54:50,121 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_756e685c-7559-4e8f-bd5e-0063af57d52f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-14 14:54:50,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:54:50,136 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:54:50,146 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_756e685c-7559-4e8f-bd5e-0063af57d52f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2022-12-14 14:54:50,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:54:50,157 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:54:50,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50 WrapperNode [2022-12-14 14:54:50,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:54:50,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:54:50,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:54:50,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:54:50,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,181 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-12-14 14:54:50,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:54:50,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:54:50,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:54:50,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:54:50,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,196 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:54:50,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:54:50,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:54:50,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:54:50,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (1/1) ... [2022-12-14 14:54:50,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:54:50,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:54:50,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:54:50,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:54:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:54:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:54:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:54:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 14:54:50,318 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:54:50,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:54:50,441 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:54:50,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:54:50,446 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:54:50,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:50 BoogieIcfgContainer [2022-12-14 14:54:50,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:54:50,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:54:50,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:54:50,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:54:50,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:54:49" (1/3) ... [2022-12-14 14:54:50,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78969c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:54:50, skipping insertion in model container [2022-12-14 14:54:50,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:54:50" (2/3) ... [2022-12-14 14:54:50,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78969c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:54:50, skipping insertion in model container [2022-12-14 14:54:50,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:50" (3/3) ... [2022-12-14 14:54:50,453 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2022-12-14 14:54:50,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:54:50,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:54:50,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:54:50,509 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;@3af95db4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:54:50,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:54:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 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 14:54:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:54:50,517 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:50,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:54:50,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:54:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:50,522 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-12-14 14:54:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:54:50,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641123735] [2022-12-14 14:54:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:50,542 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 14:54:50,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:54:50,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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 14:54:50,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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 14:54:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:50,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:54:50,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:54:50,698 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 14:54:50,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:54:50,698 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:54:50,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641123735] [2022-12-14 14:54:50,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641123735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:50,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:50,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:54:50,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183874676] [2022-12-14 14:54:50,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:50,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:54:50,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:54:50,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:54:50,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:54:50,730 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 14:54:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:50,790 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-12-14 14:54:50,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:54:50,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-14 14:54:50,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:50,797 INFO L225 Difference]: With dead ends: 11 [2022-12-14 14:54:50,797 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:54:50,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:54:50,802 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:50,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:54:50,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:54:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:54:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 14:54:50,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:54:50,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-12-14 14:54:50,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:50,822 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:54:50,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 14:54:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:54:50,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:54:50,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:54:50,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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 14:54:51,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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 14:54:51,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:54:51,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:54:51,040 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 14:54:51,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 14:54:51,041 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-12-14 14:54:51,041 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-12-14 14:54:51,042 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:54:51,042 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-12-14 14:54:51,042 INFO L899 garLoopResultBuilder]: For program point L5(lines 5 11) no Hoare annotation was computed. [2022-12-14 14:54:51,051 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:54:51,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:54:51,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:54:51 BoogieIcfgContainer [2022-12-14 14:54:51,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:54:51,068 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:54:51,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:54:51,069 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:54:51,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:54:50" (3/4) ... [2022-12-14 14:54:51,073 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:54:51,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 14:54:51,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:54:51,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 14:54:51,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:54:51,102 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:54:51,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:54:51,103 INFO L158 Benchmark]: Toolchain (without parser) took 1127.45ms. Allocated memory is still 58.7MB. Free memory was 27.1MB in the beginning and 34.5MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:51,103 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.8MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:51,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.42ms. Allocated memory is still 58.7MB. Free memory was 27.0MB in the beginning and 30.5MB in the end (delta: -3.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-12-14 14:54:51,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.51ms. Allocated memory is still 58.7MB. Free memory was 30.5MB in the beginning and 29.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:54:51,104 INFO L158 Benchmark]: Boogie Preprocessor took 16.68ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 27.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:51,104 INFO L158 Benchmark]: RCFGBuilder took 248.38ms. Allocated memory is still 58.7MB. Free memory was 27.7MB in the beginning and 32.9MB in the end (delta: -5.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-12-14 14:54:51,104 INFO L158 Benchmark]: TraceAbstraction took 618.44ms. Allocated memory is still 58.7MB. Free memory was 32.2MB in the beginning and 36.7MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:54:51,105 INFO L158 Benchmark]: Witness Printer took 34.07ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 34.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:54:51,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.8MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.42ms. Allocated memory is still 58.7MB. Free memory was 27.0MB in the beginning and 30.5MB in the end (delta: -3.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.51ms. Allocated memory is still 58.7MB. Free memory was 30.5MB in the beginning and 29.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.68ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 27.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.38ms. Allocated memory is still 58.7MB. Free memory was 27.7MB in the beginning and 32.9MB in the end (delta: -5.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * TraceAbstraction took 618.44ms. Allocated memory is still 58.7MB. Free memory was 32.2MB in the beginning and 36.7MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.07ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 34.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 14:54:51,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_756e685c-7559-4e8f-bd5e-0063af57d52f/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: TRUE