./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e --- 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 16:41:35,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:41:35,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:41:35,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:41:35,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:41:35,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:41:35,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:41:35,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:41:35,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:41:35,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:41:35,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:41:35,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:41:35,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:41:35,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:41:35,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:41:35,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:41:35,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:41:35,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:41:35,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:41:35,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:41:35,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:41:35,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:41:35,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:41:35,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:41:35,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:41:35,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:41:35,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:41:35,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:41:35,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:41:35,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:41:35,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:41:35,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:41:35,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:41:35,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:41:35,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:41:35,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:41:35,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:41:35,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:41:35,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:41:35,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:41:35,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:41:35,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:41:36,004 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:41:36,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:41:36,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:41:36,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:41:36,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:41:36,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:41:36,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:41:36,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:41:36,009 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:41:36,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:41:36,011 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:41:36,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:41:36,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:41:36,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:41:36,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:41:36,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:41:36,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:41:36,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:41:36,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:41:36,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:41:36,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:41:36,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:41:36,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:41:36,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:41:36,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:41:36,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:41:36,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:41:36,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:41:36,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:41:36,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:41:36,018 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:41:36,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:41:36,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:41:36,019 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2022-11-21 16:41:36,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:41:36,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:41:36,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:41:36,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:41:36,351 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:41:36,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-21 16:41:39,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:41:39,772 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:41:39,773 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-21 16:41:39,779 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data/83ed4cc7f/92c879ebfb824b0fb3bed3c34222e719/FLAGe3dfdf5d6 [2022-11-21 16:41:39,794 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data/83ed4cc7f/92c879ebfb824b0fb3bed3c34222e719 [2022-11-21 16:41:39,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:41:39,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:41:39,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:41:39,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:41:39,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:41:39,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:41:39" (1/1) ... [2022-11-21 16:41:39,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b170d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:39, skipping insertion in model container [2022-11-21 16:41:39,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:41:39" (1/1) ... [2022-11-21 16:41:39,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:41:39,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:41:39,984 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-21 16:41:39,996 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-21 16:41:40,001 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-21 16:41:40,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:41:40,016 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:41:40,032 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-21 16:41:40,037 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-21 16:41:40,041 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-21 16:41:40,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:41:40,058 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:41:40,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40 WrapperNode [2022-11-21 16:41:40,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:41:40,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:41:40,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:41:40,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:41:40,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,095 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2022-11-21 16:41:40,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:41:40,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:41:40,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:41:40,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:41:40,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,116 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:41:40,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:41:40,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:41:40,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:41:40,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (1/1) ... [2022-11-21 16:41:40,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:41:40,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:41:40,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:41:40,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:41:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:41:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:41:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:41:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:41:40,308 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:41:40,310 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:41:40,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:41:40,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:41:40,474 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:41:40,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:41:40 BoogieIcfgContainer [2022-11-21 16:41:40,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:41:40,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:41:40,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:41:40,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:41:40,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:41:39" (1/3) ... [2022-11-21 16:41:40,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8b5a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:41:40, skipping insertion in model container [2022-11-21 16:41:40,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:40" (2/3) ... [2022-11-21 16:41:40,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8b5a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:41:40, skipping insertion in model container [2022-11-21 16:41:40,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:41:40" (3/3) ... [2022-11-21 16:41:40,488 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i [2022-11-21 16:41:40,513 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:41:40,513 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 16:41:40,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:41:40,581 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;@529f3c96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:41:40,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 16:41:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 16:41:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:41:40,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:41:40,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:41:40,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:41:40,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:41:40,603 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-11-21 16:41:40,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:41:40,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466731161] [2022-11-21 16:41:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:41:40,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:41:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:41:40,853 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 16:41:40,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:41:40,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466731161] [2022-11-21 16:41:40,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466731161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:41:40,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:41:40,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:41:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883531432] [2022-11-21 16:41:40,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:41:40,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:41:40,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:41:40,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:41:40,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:41:40,900 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:41:40,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:41:40,920 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-11-21 16:41:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:41:40,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2022-11-21 16:41:40,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:41:40,933 INFO L225 Difference]: With dead ends: 43 [2022-11-21 16:41:40,933 INFO L226 Difference]: Without dead ends: 19 [2022-11-21 16:41:40,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:41:40,941 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:41:40,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:41:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-21 16:41:40,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-21 16:41:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 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 16:41:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-11-21 16:41:40,983 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6 [2022-11-21 16:41:40,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:41:40,984 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-11-21 16:41:40,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:41:40,984 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-11-21 16:41:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:41:40,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:41:40,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:41:40,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:41:40,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:41:40,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:41:40,988 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-11-21 16:41:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:41:40,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927719640] [2022-11-21 16:41:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:41:40,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:41:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:41:41,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:41:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:41:41,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:41:41,032 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:41:41,034 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-21 16:41:41,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-11-21 16:41:41,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-11-21 16:41:41,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:41:41,042 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 16:41:41,047 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:41:41,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:41:41 BoogieIcfgContainer [2022-11-21 16:41:41,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:41:41,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:41:41,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:41:41,072 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:41:41,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:41:40" (3/4) ... [2022-11-21 16:41:41,077 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:41:41,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:41:41,078 INFO L158 Benchmark]: Toolchain (without parser) took 1279.27ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 81.0MB in the beginning and 122.6MB in the end (delta: -41.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-11-21 16:41:41,079 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:41:41,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.07ms. Allocated memory is still 125.8MB. Free memory was 81.0MB in the beginning and 68.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:41:41,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.27ms. Allocated memory is still 125.8MB. Free memory was 68.4MB in the beginning and 67.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:41:41,081 INFO L158 Benchmark]: Boogie Preprocessor took 22.22ms. Allocated memory is still 125.8MB. Free memory was 67.0MB in the beginning and 65.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:41:41,081 INFO L158 Benchmark]: RCFGBuilder took 357.47ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 65.9MB in the beginning and 145.7MB in the end (delta: -79.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-11-21 16:41:41,082 INFO L158 Benchmark]: TraceAbstraction took 591.06ms. Allocated memory is still 178.3MB. Free memory was 145.7MB in the beginning and 122.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 16:41:41,082 INFO L158 Benchmark]: Witness Printer took 5.49ms. Allocated memory is still 178.3MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:41:41,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.07ms. Allocated memory is still 125.8MB. Free memory was 81.0MB in the beginning and 68.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.27ms. Allocated memory is still 125.8MB. Free memory was 68.4MB in the beginning and 67.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.22ms. Allocated memory is still 125.8MB. Free memory was 67.0MB in the beginning and 65.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 357.47ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 65.9MB in the beginning and 145.7MB in the end (delta: -79.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 591.06ms. Allocated memory is still 178.3MB. Free memory was 145.7MB in the beginning and 122.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.49ms. Allocated memory is still 178.3MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18. Possible FailurePath: [L48] float f=__VERIFIER_nondet_float(); [L49] CALL bug(f) [L17] COND FALSE !(!(min == 0x1.fffffep-105f)) VAL [\old(min)=53, min=53] [L18] float modifier = (0x1.0p-23 * (1<<1)); [L19] float ulpdiff = min * modifier; VAL [\old(min)=53, min=53] [L21] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=53, min=53] [L21] reach_error() VAL [\old(min)=53, min=53] - UnprovableResult [Line: 32]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 16:41:41,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e --- 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 16:41:43,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:41:43,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:41:43,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:41:43,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:41:43,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:41:43,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:41:43,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:41:43,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:41:43,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:41:43,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:41:43,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:41:43,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:41:43,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:41:43,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:41:43,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:41:43,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:41:43,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:41:43,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:41:43,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:41:43,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:41:43,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:41:43,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:41:43,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:41:43,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:41:43,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:41:43,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:41:43,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:41:43,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:41:43,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:41:43,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:41:43,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:41:43,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:41:43,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:41:43,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:41:43,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:41:43,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:41:43,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:41:43,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:41:43,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:41:43,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:41:43,754 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-21 16:41:43,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:41:43,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:41:43,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:41:43,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:41:43,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:41:43,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:41:43,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:41:43,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:41:43,813 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:41:43,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:41:43,814 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:41:43,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:41:43,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:41:43,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:41:43,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:41:43,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:41:43,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:41:43,816 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:41:43,816 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:41:43,816 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:41:43,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:41:43,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:41:43,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:41:43,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:41:43,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:41:43,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:41:43,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:41:43,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:41:43,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:41:43,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:41:43,823 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:41:43,823 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:41:43,824 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:41:43,824 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:41:43,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:41:43,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:41:43,826 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2022-11-21 16:41:44,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:41:44,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:41:44,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:41:44,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:41:44,336 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:41:44,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-21 16:41:47,570 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:41:47,787 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:41:47,787 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-21 16:41:47,793 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data/29a1f6917/26b1d4db65e24945a280a180823e492d/FLAGc5f1f4414 [2022-11-21 16:41:47,808 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/data/29a1f6917/26b1d4db65e24945a280a180823e492d [2022-11-21 16:41:47,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:41:47,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:41:47,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:41:47,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:41:47,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:41:47,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:41:47" (1/1) ... [2022-11-21 16:41:47,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e0fd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:47, skipping insertion in model container [2022-11-21 16:41:47,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:41:47" (1/1) ... [2022-11-21 16:41:47,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:41:47,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:41:48,010 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-21 16:41:48,021 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-21 16:41:48,026 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-21 16:41:48,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:41:48,053 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:41:48,081 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-21 16:41:48,089 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-21 16:41:48,093 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_0e24171e-54a8-45b3-96d3-c6832c08ee24/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-21 16:41:48,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:41:48,120 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:41:48,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48 WrapperNode [2022-11-21 16:41:48,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:41:48,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:41:48,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:41:48,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:41:48,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,188 INFO L138 Inliner]: procedures = 19, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2022-11-21 16:41:48,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:41:48,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:41:48,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:41:48,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:41:48,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:41:48,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:41:48,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:41:48,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:41:48,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (1/1) ... [2022-11-21 16:41:48,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:41:48,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:41:48,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:41:48,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:41:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:41:48,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:41:48,439 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:41:48,441 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:41:50,914 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:41:50,921 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:41:50,921 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:41:50,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:41:50 BoogieIcfgContainer [2022-11-21 16:41:50,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:41:50,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:41:50,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:41:50,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:41:50,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:41:47" (1/3) ... [2022-11-21 16:41:50,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72eb7cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:41:50, skipping insertion in model container [2022-11-21 16:41:50,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:41:48" (2/3) ... [2022-11-21 16:41:50,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72eb7cfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:41:50, skipping insertion in model container [2022-11-21 16:41:50,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:41:50" (3/3) ... [2022-11-21 16:41:50,933 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i [2022-11-21 16:41:50,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:41:50,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 16:41:51,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:41:51,019 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;@642cae8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:41:51,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 16:41:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 16:41:51,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:41:51,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:41:51,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:41:51,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:41:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:41:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-11-21 16:41:51,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:41:51,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067729505] [2022-11-21 16:41:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:41:51,067 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 16:41:51,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:41:51,072 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:41:51,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:41:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:41:51,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:41:51,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:41:51,264 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 16:41:51,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:41:51,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:41:51,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067729505] [2022-11-21 16:41:51,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067729505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:41:51,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:41:51,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:41:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297374104] [2022-11-21 16:41:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:41:51,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:41:51,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:41:51,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:41:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:41:51,323 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:41:51,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:41:51,353 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-11-21 16:41:51,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:41:51,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2022-11-21 16:41:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:41:51,363 INFO L225 Difference]: With dead ends: 43 [2022-11-21 16:41:51,363 INFO L226 Difference]: Without dead ends: 19 [2022-11-21 16:41:51,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:41:51,372 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:41:51,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:41:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-21 16:41:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-21 16:41:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 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 16:41:51,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-11-21 16:41:51,409 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6 [2022-11-21 16:41:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:41:51,410 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-11-21 16:41:51,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-21 16:41:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-11-21 16:41:51,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:41:51,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:41:51,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:41:51,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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)] Forceful destruction successful, exit code 0 [2022-11-21 16:41:51,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:41:51,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:41:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:41:51,628 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-11-21 16:41:51,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:41:51,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755115894] [2022-11-21 16:41:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:41:51,629 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 16:41:51,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:41:51,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:41:51,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 (3)] Waiting until timeout for monitored process [2022-11-21 16:41:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:41:51,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:41:51,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:41:52,278 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 16:41:52,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:41:52,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:41:52,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755115894] [2022-11-21 16:41:52,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755115894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:41:52,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:41:52,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:41:52,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947734433] [2022-11-21 16:41:52,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:41:52,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:41:52,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:41:52,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:41:52,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:41:52,282 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2022-11-21 16:41:54,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:41:55,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:41:55,096 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2022-11-21 16:41:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:41:55,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) Word has length 6 [2022-11-21 16:41:55,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:41:55,098 INFO L225 Difference]: With dead ends: 19 [2022-11-21 16:41:55,098 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 16:41:55,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:41:55,100 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:41:55,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 14 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-21 16:41:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 16:41:55,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-21 16:41:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 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 16:41:55,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-11-21 16:41:55,107 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2022-11-21 16:41:55,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:41:55,107 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-11-21 16:41:55,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2022-11-21 16:41:55,108 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-11-21 16:41:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:41:55,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:41:55,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:41:55,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:41:55,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:41:55,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:41:55,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:41:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1928169781, now seen corresponding path program 1 times [2022-11-21 16:41:55,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:41:55,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540715921] [2022-11-21 16:41:55,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:41:55,317 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 16:41:55,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:41:55,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:41:55,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 (4)] Waiting until timeout for monitored process [2022-11-21 16:41:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:41:55,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:41:55,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:42:11,661 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 16:42:11,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:42:11,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:42:11,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540715921] [2022-11-21 16:42:11,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540715921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:42:11,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:42:11,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:42:11,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180089039] [2022-11-21 16:42:11,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:42:11,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:42:11,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:42:11,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:42:11,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:42:11,664 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:42:14,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:42:18,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-21 16:42:27,884 WARN L233 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:42:29,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:42:30,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:42:33,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:42:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:42:33,084 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-11-21 16:42:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:42:33,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-21 16:42:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:42:33,085 INFO L225 Difference]: With dead ends: 17 [2022-11-21 16:42:33,085 INFO L226 Difference]: Without dead ends: 15 [2022-11-21 16:42:33,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:42:33,087 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:42:33,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2022-11-21 16:42:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-21 16:42:33,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-21 16:42:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 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 16:42:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2022-11-21 16:42:33,093 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 10 [2022-11-21 16:42:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:42:33,093 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2022-11-21 16:42:33,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:42:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2022-11-21 16:42:33,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:42:33,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:42:33,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:42:33,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:42:33,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:42:33,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:42:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:42:33,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1162826544, now seen corresponding path program 1 times [2022-11-21 16:42:33,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:42:33,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32443940] [2022-11-21 16:42:33,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:42:33,305 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 16:42:33,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:42:33,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:42:33,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 (5)] Waiting until timeout for monitored process [2022-11-21 16:42:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:42:33,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:42:33,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:42:34,836 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 16:42:34,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:42:34,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:42:34,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32443940] [2022-11-21 16:42:34,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32443940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:42:34,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:42:34,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:42:34,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100648775] [2022-11-21 16:42:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:42:34,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:42:34,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:42:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:42:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:42:34,839 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 16:42:37,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-21 16:42:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:42:38,227 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-11-21 16:42:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:42:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-11-21 16:42:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:42:38,228 INFO L225 Difference]: With dead ends: 15 [2022-11-21 16:42:38,228 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:42:38,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:42:38,230 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:42:38,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-21 16:42:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:42:38,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:42:38,233 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 16:42:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:42:38,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-21 16:42:38,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:42:38,234 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:42:38,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 16:42:38,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:42:38,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:42:38,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-21 16:42:38,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-11-21 16:42:38,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-11-21 16:42:38,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:42:38,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 16:42:38,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:42:46,603 WARN L233 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-21 16:42:46,607 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-21 16:42:46,607 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2022-11-21 16:42:46,607 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2022-11-21 16:42:46,607 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-21 16:42:46,608 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:42:46,608 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-21 16:42:46,608 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:42:46,609 INFO L895 garLoopResultBuilder]: At program point L32-3(lines 26 35) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0)))) (and (exists ((|ULTIMATE.start_bugBrokenOut_~min#1| (_ FloatingPoint 8 24))) (and (fp.eq |ULTIMATE.start_bugBrokenOut_~min#1| .cse0) (= |ULTIMATE.start_bugBrokenOut_~ulpdiff~1#1| ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode |ULTIMATE.start_bugBrokenOut_~min#1|) ((_ to_fp 11 53) currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))))) (fp.eq |ULTIMATE.start_bugBrokenOut_~min#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2022-11-21 16:42:46,609 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:42:46,610 INFO L902 garLoopResultBuilder]: At program point L57(lines 47 58) the Hoare annotation is: true [2022-11-21 16:42:46,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2022-11-21 16:42:46,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:42:46,610 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-11-21 16:42:46,611 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-11-21 16:42:46,611 INFO L895 garLoopResultBuilder]: At program point L21-3(lines 16 24) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0)))) (and (fp.eq |ULTIMATE.start_bug_~min#1| .cse0) (= currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_bug_~min#1| (_ FloatingPoint 8 24))) (and (fp.eq |ULTIMATE.start_bug_~min#1| .cse0) (= |ULTIMATE.start_bug_~ulpdiff~0#1| (fp.mul currentRoundingMode |ULTIMATE.start_bug_~min#1| ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))))) [2022-11-21 16:42:46,611 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-21 16:42:46,611 INFO L899 garLoopResultBuilder]: For program point L17-2(line 17) no Hoare annotation was computed. [2022-11-21 16:42:46,612 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2022-11-21 16:42:46,612 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-11-21 16:42:46,612 INFO L902 garLoopResultBuilder]: At program point L42-3(lines 37 45) the Hoare annotation is: true [2022-11-21 16:42:46,612 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-21 16:42:46,613 INFO L899 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed. [2022-11-21 16:42:46,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2022-11-21 16:42:46,617 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 16:42:46,619 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:42:46,629 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:42:46,631 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-21 16:42:46,631 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-21 16:42:46,639 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:42:46,649 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-21 16:42:46,649 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-21 16:42:46,651 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,651 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,651 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:42:46,652 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,652 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,653 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:42:46,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:42:46 BoogieIcfgContainer [2022-11-21 16:42:46,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:42:46,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:42:46,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:42:46,655 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:42:46,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:41:50" (3/4) ... [2022-11-21 16:42:46,659 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:42:46,673 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-21 16:42:46,674 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:42:46,674 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:42:46,674 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:42:46,704 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) [2022-11-21 16:42:46,705 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_bugBrokenOut_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))))) && ~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-11-21 16:42:46,721 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:42:46,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:42:46,722 INFO L158 Benchmark]: Toolchain (without parser) took 58909.68ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 35.5MB in the end (delta: 12.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-11-21 16:42:46,722 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:42:46,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.76ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 52.8MB in the end (delta: -5.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-21 16:42:46,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.39ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 51.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:42:46,724 INFO L158 Benchmark]: Boogie Preprocessor took 52.96ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 49.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:42:46,724 INFO L158 Benchmark]: RCFGBuilder took 2679.72ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 39.9MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:42:46,724 INFO L158 Benchmark]: TraceAbstraction took 55728.06ms. Allocated memory is still 73.4MB. Free memory was 39.1MB in the beginning and 38.5MB in the end (delta: 574.7kB). Peak memory consumption was 152.8kB. Max. memory is 16.1GB. [2022-11-21 16:42:46,725 INFO L158 Benchmark]: Witness Printer took 66.81ms. Allocated memory is still 73.4MB. Free memory was 38.5MB in the beginning and 35.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:42:46,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.76ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 52.8MB in the end (delta: -5.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.39ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 51.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.96ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 49.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2679.72ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 39.9MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 55728.06ms. Allocated memory is still 73.4MB. Free memory was 39.1MB in the beginning and 38.5MB in the end (delta: 574.7kB). Peak memory consumption was 152.8kB. Max. memory is 16.1GB. * Witness Printer took 66.81ms. Allocated memory is still 73.4MB. Free memory was 38.5MB in the beginning and 35.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - 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: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 42]: 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, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 55.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 17.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 17.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 43 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 70 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 8.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 3 QuantifiedInterpolants, 163 SizeOfPredicates, 12 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 3 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2022-11-21 16:42:46,755 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:42:46,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-21 16:42:46,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-21 16:42:46,756 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:42:46,757 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-21 16:42:46,759 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] Derived loop invariant: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) - InvariantResult [Line: 26]: Loop Invariant [2022-11-21 16:42:46,762 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,763 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,763 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-21 16:42:46,764 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,764 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-11-21 16:42:46,767 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists ULTIMATE.start_bugBrokenOut_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))))) && ~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-21 16:42:46,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e24171e-54a8-45b3-96d3-c6832c08ee24/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 Writing output log to file Ultimate.log Result: TRUE