./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN --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 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 --- 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-6b4ec56 [2022-11-20 10:56:51,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:56:51,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:56:51,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:56:51,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:56:51,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:56:51,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:56:51,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:56:51,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:56:51,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:56:51,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:56:51,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:56:51,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:56:51,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:56:51,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:56:51,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:56:51,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:56:51,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:56:51,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:56:51,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:56:51,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:56:51,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:56:51,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:56:51,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:56:51,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:56:51,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:56:51,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:56:51,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:56:51,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:56:51,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:56:51,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:56:51,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:56:51,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:56:51,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:56:51,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:56:51,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:56:51,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:56:51,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:56:51,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:56:51,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:56:51,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:56:51,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:56:52,008 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:56:52,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:56:52,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:56:52,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:56:52,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:56:52,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:56:52,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:56:52,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:56:52,016 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:56:52,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:56:52,017 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:56:52,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:56:52,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:56:52,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:56:52,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:56:52,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:56:52,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:56:52,019 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:56:52,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:56:52,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:56:52,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:56:52,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:56:52,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:56:52,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:56:52,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:52,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:56:52,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:56:52,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:56:52,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:56:52,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:56:52,022 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:56:52,023 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:56:52,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:56:52,023 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_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2022-11-20 10:56:52,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:56:52,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:56:52,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:56:52,323 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:56:52,324 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:56:52,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2022-11-20 10:56:55,380 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:56:55,646 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:56:55,646 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/sv-benchmarks/c/float-benchs/cast_union_tight.c [2022-11-20 10:56:55,653 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data/a4d92472f/759b5743bd0f4259a711b5d1aa249b07/FLAG567fe2ed8 [2022-11-20 10:56:55,667 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data/a4d92472f/759b5743bd0f4259a711b5d1aa249b07 [2022-11-20 10:56:55,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:56:55,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:56:55,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:55,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:56:55,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:56:55,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523240f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55, skipping insertion in model container [2022-11-20 10:56:55,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:56:55,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:56:55,834 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_819d4297-e6de-4278-b2aa-aab2373924a2/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2022-11-20 10:56:55,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:55,857 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:56:55,867 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_819d4297-e6de-4278-b2aa-aab2373924a2/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2022-11-20 10:56:55,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:55,888 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:56:55,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55 WrapperNode [2022-11-20 10:56:55,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:55,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:55,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:56:55,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:56:55,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,926 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-11-20 10:56:55,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:55,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:56:55,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:56:55,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:56:55,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,948 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:56:55,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:56:55,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:56:55,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:56:55,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (1/1) ... [2022-11-20 10:56:55,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:55,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:55,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:56:55,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:56:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:56:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:56:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:56:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-20 10:56:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:56:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:56:56,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:56:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:56:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:56:56,094 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:56:56,096 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:56:56,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:56:56,325 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:56:56,325 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:56:56,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:56 BoogieIcfgContainer [2022-11-20 10:56:56,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:56:56,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:56:56,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:56:56,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:56:56,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:56:55" (1/3) ... [2022-11-20 10:56:56,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e3b3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:56, skipping insertion in model container [2022-11-20 10:56:56,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:55" (2/3) ... [2022-11-20 10:56:56,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e3b3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:56, skipping insertion in model container [2022-11-20 10:56:56,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:56" (3/3) ... [2022-11-20 10:56:56,353 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2022-11-20 10:56:56,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:56:56,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:56:56,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:56:56,472 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;@2bd39e89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:56:56,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:56:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 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) [2022-11-20 10:56:56,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 10:56:56,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:56,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 10:56:56,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:56:56,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:56,490 INFO L85 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2022-11-20 10:56:56,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:56,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679831244] [2022-11-20 10:56:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:56,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:56,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:56:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:56,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:56:56,744 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:56:56,745 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:56:56,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:56:56,753 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:56:56,761 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:56:56,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:56:56 BoogieIcfgContainer [2022-11-20 10:56:56,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:56:56,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:56:56,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:56:56,796 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:56:56,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:56" (3/4) ... [2022-11-20 10:56:56,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 10:56:56,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:56:56,803 INFO L158 Benchmark]: Toolchain (without parser) took 1130.92ms. Allocated memory is still 176.2MB. Free memory was 145.1MB in the beginning and 100.0MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-20 10:56:56,803 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:56:56,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.16ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 134.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:56:56,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.03ms. Allocated memory is still 176.2MB. Free memory was 134.7MB in the beginning and 132.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:56:56,805 INFO L158 Benchmark]: Boogie Preprocessor took 27.54ms. Allocated memory is still 176.2MB. Free memory was 132.7MB in the beginning and 131.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:56:56,806 INFO L158 Benchmark]: RCFGBuilder took 369.71ms. Allocated memory is still 176.2MB. Free memory was 131.4MB in the beginning and 119.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:56:56,807 INFO L158 Benchmark]: TraceAbstraction took 461.29ms. Allocated memory is still 176.2MB. Free memory was 118.9MB in the beginning and 100.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 10:56:56,807 INFO L158 Benchmark]: Witness Printer took 7.39ms. Allocated memory is still 176.2MB. Free memory was 100.8MB in the beginning and 100.0MB in the end (delta: 844.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:56:56,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.16ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 134.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.03ms. Allocated memory is still 176.2MB. Free memory was 134.7MB in the beginning and 132.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.54ms. Allocated memory is still 176.2MB. Free memory was 132.7MB in the beginning and 131.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.71ms. Allocated memory is still 176.2MB. Free memory was 131.4MB in the beginning and 119.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 461.29ms. Allocated memory is still 176.2MB. Free memory was 118.9MB in the beginning and 100.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.39ms. Allocated memory is still 176.2MB. Free memory was 100.8MB in the beginning and 100.0MB in the end (delta: 844.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23, overapproximation of bitwiseXor at line 22. Possible FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; VAL [\old(i)=7, i=7] [L33] RET, EXPR cast(a) [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r == a) [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 10:56:56,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN --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 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 --- 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-6b4ec56 [2022-11-20 10:56:59,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:56:59,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:56:59,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:56:59,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:56:59,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:56:59,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:56:59,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:56:59,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:56:59,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:56:59,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:56:59,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:56:59,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:56:59,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:56:59,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:56:59,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:56:59,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:56:59,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:56:59,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:56:59,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:56:59,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:56:59,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:56:59,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:56:59,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:56:59,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:56:59,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:56:59,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:56:59,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:56:59,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:56:59,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:56:59,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:56:59,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:56:59,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:56:59,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:56:59,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:56:59,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:56:59,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:56:59,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:56:59,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:56:59,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:56:59,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:56:59,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 10:56:59,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:56:59,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:56:59,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:56:59,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:56:59,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:56:59,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:56:59,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:56:59,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:56:59,434 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:56:59,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:56:59,436 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:56:59,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:56:59,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:56:59,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:56:59,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:56:59,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:56:59,437 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:56:59,437 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:56:59,437 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:56:59,438 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:56:59,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:56:59,438 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:56:59,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:56:59,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:56:59,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:56:59,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:56:59,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:59,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:56:59,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:56:59,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:56:59,440 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:56:59,440 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:56:59,441 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:56:59,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:56:59,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:56:59,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:56:59,441 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_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2022-11-20 10:56:59,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:56:59,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:56:59,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:56:59,900 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:56:59,900 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:56:59,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2022-11-20 10:57:03,051 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:57:03,260 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:57:03,261 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/sv-benchmarks/c/float-benchs/cast_union_tight.c [2022-11-20 10:57:03,272 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data/eb4c47ddd/a1d10f5aa0f844fd8d658864092295ac/FLAG283f06af2 [2022-11-20 10:57:03,295 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/data/eb4c47ddd/a1d10f5aa0f844fd8d658864092295ac [2022-11-20 10:57:03,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:57:03,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:57:03,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:03,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:57:03,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:57:03,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c74ce9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03, skipping insertion in model container [2022-11-20 10:57:03,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:57:03,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:57:03,508 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_819d4297-e6de-4278-b2aa-aab2373924a2/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2022-11-20 10:57:03,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:03,535 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:57:03,548 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_819d4297-e6de-4278-b2aa-aab2373924a2/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2022-11-20 10:57:03,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:03,574 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:57:03,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03 WrapperNode [2022-11-20 10:57:03,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:03,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:03,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:57:03,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:57:03,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,612 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-11-20 10:57:03,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:03,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:57:03,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:57:03,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:57:03,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:57:03,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:57:03,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:57:03,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:57:03,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (1/1) ... [2022-11-20 10:57:03,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:03,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:03,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:03,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:57:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:57:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-20 10:57:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:57:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:57:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:57:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:57:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:57:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:57:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:57:03,862 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:57:03,864 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:57:04,551 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:57:04,558 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:57:04,558 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:57:04,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:04 BoogieIcfgContainer [2022-11-20 10:57:04,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:57:04,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:57:04,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:57:04,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:57:04,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:57:03" (1/3) ... [2022-11-20 10:57:04,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9ad62c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:04, skipping insertion in model container [2022-11-20 10:57:04,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:03" (2/3) ... [2022-11-20 10:57:04,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9ad62c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:04, skipping insertion in model container [2022-11-20 10:57:04,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:04" (3/3) ... [2022-11-20 10:57:04,570 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2022-11-20 10:57:04,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:57:04,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:57:04,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:57:04,650 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;@7aba7f03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:57:04,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:57:04,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 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) [2022-11-20 10:57:04,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 10:57:04,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:04,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 10:57:04,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:04,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2022-11-20 10:57:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:57:04,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203647312] [2022-11-20 10:57:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:04,682 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 [2022-11-20 10:57:04,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:57:04,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 10:57:04,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 10:57:04,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 139 [2022-11-20 10:57:04,852 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-20 10:57:04,857 INFO L158 Benchmark]: Toolchain (without parser) took 1556.32ms. Allocated memory is still 75.5MB. Free memory was 54.3MB in the beginning and 39.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-11-20 10:57:04,857 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:57:04,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.74ms. Allocated memory is still 75.5MB. Free memory was 54.1MB in the beginning and 43.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:57:04,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.54ms. Allocated memory is still 75.5MB. Free memory was 43.1MB in the beginning and 41.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:57:04,859 INFO L158 Benchmark]: Boogie Preprocessor took 41.10ms. Allocated memory is still 75.5MB. Free memory was 41.4MB in the beginning and 40.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:57:04,859 INFO L158 Benchmark]: RCFGBuilder took 905.80ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 51.8MB in the end (delta: -11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:57:04,860 INFO L158 Benchmark]: TraceAbstraction took 292.70ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 39.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:57:04,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.74ms. Allocated memory is still 75.5MB. Free memory was 54.1MB in the beginning and 43.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.54ms. Allocated memory is still 75.5MB. Free memory was 43.1MB in the beginning and 41.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.10ms. Allocated memory is still 75.5MB. Free memory was 41.4MB in the beginning and 40.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 905.80ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 51.8MB in the end (delta: -11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 292.70ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 39.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 10:57:04,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_819d4297-e6de-4278-b2aa-aab2373924a2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.