./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac --- 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-b5237d8 [2022-11-21 16:49:00,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:49:00,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:49:00,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:49:00,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:49:00,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:49:00,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:49:00,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:49:00,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:49:00,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:49:00,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:49:00,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:49:00,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:49:00,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:49:00,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:49:00,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:49:00,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:49:00,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:49:00,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:49:00,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:49:00,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:49:00,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:49:00,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:49:00,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:49:01,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:49:01,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:49:01,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:49:01,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:49:01,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:49:01,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:49:01,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:49:01,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:49:01,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:49:01,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:49:01,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:49:01,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:49:01,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:49:01,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:49:01,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:49:01,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:49:01,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:49:01,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:49:01,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:49:01,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:49:01,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:49:01,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:49:01,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:49:01,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:49:01,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:49:01,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:49:01,039 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:49:01,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:49:01,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:49:01,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:49:01,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:49:01,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:49:01,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:49:01,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:49:01,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:49:01,041 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:49:01,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:49:01,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:49:01,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:49:01,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:49:01,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:49:01,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:49:01,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:01,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:49:01,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:49:01,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:49:01,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:49:01,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:49:01,044 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:49:01,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:49:01,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:49:01,045 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_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac [2022-11-21 16:49:01,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:49:01,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:49:01,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:49:01,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:49:01,324 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:49:01,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-11-21 16:49:04,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:49:04,587 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:49:04,588 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-11-21 16:49:04,596 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data/8cedafcbb/a64333a0b43f470980642550327ad9be/FLAGbb51d7649 [2022-11-21 16:49:04,621 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data/8cedafcbb/a64333a0b43f470980642550327ad9be [2022-11-21 16:49:04,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:49:04,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:49:04,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:04,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:49:04,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:49:04,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a56fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04, skipping insertion in model container [2022-11-21 16:49:04,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:49:04,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:49:04,857 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_44bef33a-473a-44dd-a9c2-ce2815116c07/sv-benchmarks/c/float-benchs/addsub_double_exact.c[393,406] [2022-11-21 16:49:04,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:04,885 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:49:04,898 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_44bef33a-473a-44dd-a9c2-ce2815116c07/sv-benchmarks/c/float-benchs/addsub_double_exact.c[393,406] [2022-11-21 16:49:04,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:04,918 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:49:04,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04 WrapperNode [2022-11-21 16:49:04,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:04,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:04,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:49:04,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:49:04,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,954 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-11-21 16:49:04,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:04,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:49:04,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:49:04,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:49:04,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:49:04,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:49:04,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:49:04,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:49:04,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (1/1) ... [2022-11-21 16:49:04,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:05,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:05,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:05,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:49:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:49:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:49:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:49:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:49:05,145 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:49:05,147 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:49:05,240 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:49:05,246 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:49:05,246 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:49:05,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:05 BoogieIcfgContainer [2022-11-21 16:49:05,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:49:05,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:49:05,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:49:05,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:49:05,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:49:04" (1/3) ... [2022-11-21 16:49:05,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706d95fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:05, skipping insertion in model container [2022-11-21 16:49:05,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:04" (2/3) ... [2022-11-21 16:49:05,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706d95fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:05, skipping insertion in model container [2022-11-21 16:49:05,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:05" (3/3) ... [2022-11-21 16:49:05,262 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2022-11-21 16:49:05,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:49:05,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:49:05,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:49:05,374 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=PETRI_NET, 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;@162eda19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:49:05,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:49:05,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-21 16:49:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 16:49:05,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:49:05,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 16:49:05,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:49:05,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:05,392 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-21 16:49:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:05,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725984111] [2022-11-21 16:49:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:05,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:05,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:49:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:49:05,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:49:05,538 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:49:05,539 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:49:05,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:49:05,546 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:49:05,551 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:49:05,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:49:05 BoogieIcfgContainer [2022-11-21 16:49:05,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:49:05,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:49:05,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:49:05,571 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:49:05,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:05" (3/4) ... [2022-11-21 16:49:05,575 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:49:05,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:49:05,577 INFO L158 Benchmark]: Toolchain (without parser) took 945.33ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 85.8MB in the beginning and 141.6MB in the end (delta: -55.8MB). Peak memory consumption was 509.8kB. Max. memory is 16.1GB. [2022-11-21 16:49:05,578 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:49:05,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.47ms. Allocated memory is still 127.9MB. Free memory was 85.8MB in the beginning and 76.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 16:49:05,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.42ms. Allocated memory is still 127.9MB. Free memory was 76.0MB in the beginning and 74.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:49:05,580 INFO L158 Benchmark]: Boogie Preprocessor took 28.49ms. Allocated memory is still 127.9MB. Free memory was 74.5MB in the beginning and 73.5MB in the end (delta: 996.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:49:05,580 INFO L158 Benchmark]: RCFGBuilder took 263.65ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 64.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 16:49:05,581 INFO L158 Benchmark]: TraceAbstraction took 319.07ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 64.1MB in the beginning and 142.6MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:49:05,582 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 182.5MB. Free memory was 142.6MB in the beginning and 141.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:49:05,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.47ms. Allocated memory is still 127.9MB. Free memory was 85.8MB in the beginning and 76.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.42ms. Allocated memory is still 127.9MB. Free memory was 76.0MB in the beginning and 74.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.49ms. Allocated memory is still 127.9MB. Free memory was 74.5MB in the beginning and 73.5MB in the end (delta: 996.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.65ms. Allocated memory is still 127.9MB. Free memory was 73.2MB in the beginning and 64.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 319.07ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 64.1MB in the beginning and 142.6MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 182.5MB. Free memory was 142.6MB in the beginning and 141.6MB in the end (delta: 1.1MB). 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 - UnprovableResult [Line: 6]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x, y, z, r; [L12] x = 1e8 [L13] y = x + 1 [L14] z = x - 1 [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 2.) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=9occurred 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, 4 NumberOfCodeBlocks, 4 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 [2022-11-21 16:49:05,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/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_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac --- 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-b5237d8 [2022-11-21 16:49:08,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:49:08,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:49:08,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:49:08,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:49:08,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:49:08,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:49:08,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:49:08,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:49:08,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:49:08,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:49:08,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:49:08,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:49:08,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:49:08,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:49:08,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:49:08,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:49:08,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:49:08,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:49:08,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:49:08,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:49:08,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:49:08,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:49:08,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:49:08,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:49:08,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:49:08,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:49:08,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:49:08,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:49:08,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:49:08,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:49:08,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:49:08,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:49:08,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:49:08,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:49:08,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:49:08,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:49:08,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:49:08,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:49:08,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:49:08,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:49:08,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-21 16:49:08,237 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:49:08,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:49:08,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:49:08,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:49:08,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:49:08,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:49:08,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:49:08,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:49:08,240 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:49:08,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:49:08,240 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:49:08,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:49:08,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:49:08,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:49:08,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:49:08,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:49:08,241 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:49:08,242 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:49:08,242 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:49:08,242 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:49:08,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:49:08,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:49:08,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:49:08,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:49:08,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:49:08,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:49:08,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:08,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:49:08,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:49:08,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:49:08,244 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:49:08,244 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:49:08,245 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:49:08,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:49:08,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:49:08,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:49:08,245 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_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac [2022-11-21 16:49:08,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:49:08,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:49:08,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:49:08,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:49:08,630 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:49:08,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-11-21 16:49:11,716 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:49:11,926 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:49:11,927 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-11-21 16:49:11,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data/d9a22215b/365ff14c3e3c4f6d854d65384a489228/FLAG443067229 [2022-11-21 16:49:11,952 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/data/d9a22215b/365ff14c3e3c4f6d854d65384a489228 [2022-11-21 16:49:11,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:49:11,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:49:11,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:11,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:49:11,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:49:11,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:11" (1/1) ... [2022-11-21 16:49:11,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635e789f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:11, skipping insertion in model container [2022-11-21 16:49:11,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:11" (1/1) ... [2022-11-21 16:49:11,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:49:12,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:49:12,171 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_44bef33a-473a-44dd-a9c2-ce2815116c07/sv-benchmarks/c/float-benchs/addsub_double_exact.c[393,406] [2022-11-21 16:49:12,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:12,211 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:49:12,228 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_44bef33a-473a-44dd-a9c2-ce2815116c07/sv-benchmarks/c/float-benchs/addsub_double_exact.c[393,406] [2022-11-21 16:49:12,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:12,253 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:49:12,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12 WrapperNode [2022-11-21 16:49:12,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:12,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:12,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:49:12,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:49:12,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,294 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-11-21 16:49:12,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:12,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:49:12,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:49:12,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:49:12,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:49:12,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:49:12,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:49:12,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:49:12,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (1/1) ... [2022-11-21 16:49:12,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:12,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:12,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:12,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:49:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:49:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:49:12,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:49:12,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:49:12,556 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:49:12,559 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:49:13,142 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:49:13,148 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:49:13,148 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:49:13,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:13 BoogieIcfgContainer [2022-11-21 16:49:13,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:49:13,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:49:13,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:49:13,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:49:13,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:49:11" (1/3) ... [2022-11-21 16:49:13,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ced914e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:13, skipping insertion in model container [2022-11-21 16:49:13,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:12" (2/3) ... [2022-11-21 16:49:13,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ced914e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:13, skipping insertion in model container [2022-11-21 16:49:13,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:13" (3/3) ... [2022-11-21 16:49:13,159 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2022-11-21 16:49:13,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:49:13,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:49:13,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:49:13,248 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=PETRI_NET, 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;@342560d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:49:13,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:49:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-21 16:49:13,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 16:49:13,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:49:13,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 16:49:13,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:49:13,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-21 16:49:13,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:49:13,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848307335] [2022-11-21 16:49:13,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:13,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:49:13,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:49:13,286 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:49:13,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:49:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:13,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:49:13,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:49:13,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:13,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:49:13,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:49:13,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848307335] [2022-11-21 16:49:13,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848307335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:13,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:13,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:49:13,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752067244] [2022-11-21 16:49:13,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:13,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:49:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:49:13,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:49:13,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:49:13,763 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-21 16:49:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:49:14,246 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-11-21 16:49:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:49:14,249 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 [2022-11-21 16:49:14,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:49:14,254 INFO L225 Difference]: With dead ends: 13 [2022-11-21 16:49:14,254 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:49:14,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:49:14,261 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:49:14,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:49:14,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:49:14,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:49:14,297 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) [2022-11-21 16:49:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:49:14,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-21 16:49:14,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:49:14,300 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:49:14,300 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) [2022-11-21 16:49:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:49:14,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:49:14,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:49:14,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/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)] Ended with exit code 0 [2022-11-21 16:49:14,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:49:14,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:49:14,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:49:14,571 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:49:14,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:49:14,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:49:14,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2022-11-21 16:49:14,572 INFO L895 garLoopResultBuilder]: At program point L17(lines 8 18) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-21 16:49:14,572 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-11-21 16:49:14,572 INFO L899 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2022-11-21 16:49:14,573 INFO L895 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-21 16:49:14,577 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:49:14,580 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:49:14,590 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:49:14,594 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:49:14,595 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:49:14,596 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:49:14,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:49:14 BoogieIcfgContainer [2022-11-21 16:49:14,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:49:14,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:49:14,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:49:14,598 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:49:14,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:13" (3/4) ... [2022-11-21 16:49:14,602 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:49:14,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 16:49:14,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:49:14,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:49:14,614 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:49:14,646 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:49:14,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:49:14,648 INFO L158 Benchmark]: Toolchain (without parser) took 2690.10ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 46.3MB in the beginning and 65.6MB in the end (delta: -19.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-21 16:49:14,648 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 71.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:49:14,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.31ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 35.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:49:14,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.55ms. Allocated memory is still 71.3MB. Free memory was 35.8MB in the beginning and 34.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:49:14,650 INFO L158 Benchmark]: Boogie Preprocessor took 49.95ms. Allocated memory is still 71.3MB. Free memory was 34.2MB in the beginning and 32.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:49:14,650 INFO L158 Benchmark]: RCFGBuilder took 803.57ms. Allocated memory is still 71.3MB. Free memory was 32.8MB in the beginning and 45.3MB in the end (delta: -12.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 16:49:14,651 INFO L158 Benchmark]: TraceAbstraction took 1444.41ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 68.0MB in the end (delta: -23.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-11-21 16:49:14,651 INFO L158 Benchmark]: Witness Printer took 49.15ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 65.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:49:14,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 71.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.31ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 35.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.55ms. Allocated memory is still 71.3MB. Free memory was 35.8MB in the beginning and 34.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.95ms. Allocated memory is still 71.3MB. Free memory was 34.2MB in the beginning and 32.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 803.57ms. Allocated memory is still 71.3MB. Free memory was 32.8MB in the beginning and 45.3MB in the end (delta: -12.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1444.41ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 68.0MB in the end (delta: -23.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 49.15ms. Allocated memory is still 98.6MB. Free memory was 68.0MB in the beginning and 65.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 6]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.4s 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, 4 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 6 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 8 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 - InvariantResult [Line: 6]: Loop Invariant [2022-11-21 16:49:14,663 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:49:14,664 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 8]: Loop Invariant [2022-11-21 16:49:14,664 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:49:14,665 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-11-21 16:49:14,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44bef33a-473a-44dd-a9c2-ce2815116c07/bin/uautomizer-vX5HgA9Q3a/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