./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD --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 .......................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD --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 ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:09:47,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:09:47,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:09:47,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:09:47,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:09:47,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:09:47,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:09:47,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:09:47,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:09:47,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:09:47,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:09:47,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:09:47,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:09:47,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:09:47,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:09:47,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:09:47,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:09:47,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:09:47,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:09:47,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:09:47,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:09:47,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:09:47,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:09:47,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:09:47,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:09:47,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:09:47,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:09:47,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:09:47,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:09:47,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:09:47,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:09:47,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:09:47,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:09:47,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:09:47,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:09:47,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:09:47,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:09:47,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:09:47,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:09:47,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:09:47,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:09:47,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:09:47,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:09:47,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:09:47,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:09:47,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:09:47,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:09:47,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:09:47,877 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:09:47,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:09:47,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:09:47,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:09:47,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:09:47,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:09:47,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:09:47,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:09:47,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:09:47,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:09:47,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:09:47,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:09:47,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:09:47,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:09:47,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:09:47,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:09:47,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:09:47,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:09:47,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:09:47,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:09:47,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:09:47,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:09:47,885 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:09:47,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:09:47,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:09:47,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:09:47,888 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_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2021-10-28 23:09:48,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:09:48,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:09:48,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:09:48,301 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:09:48,301 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:09:48,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 23:09:48,402 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/2cfda321c/bdbbd6559c0c41ffa6ca203ab418c39c/FLAGb83619200 [2021-10-28 23:09:48,964 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:09:48,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 23:09:48,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/2cfda321c/bdbbd6559c0c41ffa6ca203ab418c39c/FLAGb83619200 [2021-10-28 23:09:49,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/2cfda321c/bdbbd6559c0c41ffa6ca203ab418c39c [2021-10-28 23:09:49,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:09:49,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:09:49,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:49,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:09:49,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:09:49,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32904954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49, skipping insertion in model container [2021-10-28 23:09:49,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:09:49,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:09:49,569 WARN L228 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_0072672a-5d14-4795-9e74-7d86ab0c5084/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 23:09:49,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:49,599 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:09:49,621 WARN L228 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_0072672a-5d14-4795-9e74-7d86ab0c5084/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 23:09:49,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:49,650 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:09:49,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49 WrapperNode [2021-10-28 23:09:49,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:49,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:49,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:09:49,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:09:49,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:49,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:09:49,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:09:49,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:09:49,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:09:49,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:09:49,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:09:49,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:09:49,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (1/1) ... [2021-10-28 23:09:49,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:09:49,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:49,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:49,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:09:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:09:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:09:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 23:09:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:09:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:09:49,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:09:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:09:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:09:50,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:09:50,182 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 23:09:50,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:50 BoogieIcfgContainer [2021-10-28 23:09:50,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:09:50,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:09:50,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:09:50,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:09:50,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:09:49" (1/3) ... [2021-10-28 23:09:50,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8499e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:09:50, skipping insertion in model container [2021-10-28 23:09:50,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:49" (2/3) ... [2021-10-28 23:09:50,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8499e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:09:50, skipping insertion in model container [2021-10-28 23:09:50,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:50" (3/3) ... [2021-10-28 23:09:50,195 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2021-10-28 23:09:50,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:09:50,210 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:09:50,291 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:09:50,299 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:09:50,299 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:09:50,339 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) [2021-10-28 23:09:50,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 23:09:50,344 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:09:50,344 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 23:09:50,345 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:09:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2021-10-28 23:09:50,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:50,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322813003] [2021-10-28 23:09:50,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:50,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,572 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:50,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:50,683 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:09:50,684 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:09:50,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:09:50,692 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 23:09:50,696 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:09:50,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:09:50 BoogieIcfgContainer [2021-10-28 23:09:50,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:09:50,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:50,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:50,721 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:50,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:50" (3/4) ... [2021-10-28 23:09:50,730 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:09:50,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:50,736 INFO L168 Benchmark]: Toolchain (without parser) took 1428.25 ms. Allocated memory is still 102.8 MB. Free memory was 62.6 MB in the beginning and 49.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:50,736 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 102.8 MB. Free memory is still 78.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:50,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.33 ms. Allocated memory is still 102.8 MB. Free memory was 62.4 MB in the beginning and 78.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:50,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.53 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:50,742 INFO L168 Benchmark]: Boogie Preprocessor took 28.19 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 75.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:50,744 INFO L168 Benchmark]: RCFGBuilder took 458.90 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 65.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:50,747 INFO L168 Benchmark]: TraceAbstraction took 533.48 ms. Allocated memory is still 102.8 MB. Free memory was 64.5 MB in the beginning and 49.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:50,751 INFO L168 Benchmark]: Witness Printer took 9.45 ms. Allocated memory is still 102.8 MB. Free memory was 49.9 MB in the beginning and 49.4 MB in the end (delta: 433.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:50,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 102.8 MB. Free memory is still 78.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.33 ms. Allocated memory is still 102.8 MB. Free memory was 62.4 MB in the beginning and 78.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.53 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.19 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 75.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 458.90 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 65.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 533.48 ms. Allocated memory is still 102.8 MB. Free memory was 64.5 MB in the beginning and 49.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 9.45 ms. Allocated memory is still 102.8 MB. Free memory was 49.9 MB in the beginning and 49.4 MB in the end (delta: 433.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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() [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; [L33] r = cast(a) [L9] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, 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 [2021-10-28 23:09:50,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:09:53,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:09:53,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:09:53,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:09:53,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:09:53,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:09:53,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:09:53,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:09:53,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:09:53,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:09:53,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:09:53,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:09:53,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:09:53,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:09:53,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:09:53,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:09:53,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:09:53,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:09:53,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:09:53,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:09:53,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:09:53,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:09:53,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:09:53,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:09:53,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:09:53,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:09:53,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:09:53,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:09:53,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:09:53,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:09:53,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:09:53,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:09:53,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:09:53,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:09:53,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:09:53,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:09:53,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:09:53,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:09:53,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:09:53,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:09:53,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:09:53,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:09:54,005 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:09:54,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:09:54,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:09:54,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:09:54,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:09:54,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:09:54,008 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:09:54,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:09:54,009 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:09:54,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:09:54,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:09:54,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:09:54,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:09:54,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:09:54,011 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:09:54,011 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:09:54,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:09:54,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:09:54,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:09:54,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:09:54,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:09:54,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:09:54,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:09:54,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:09:54,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:09:54,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:09:54,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:09:54,014 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:09:54,014 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:09:54,015 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:09:54,015 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:09:54,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:09:54,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:09:54,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:09:54,016 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_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2021-10-28 23:09:54,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:09:54,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:09:54,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:09:54,538 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:09:54,539 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:09:54,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 23:09:54,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/b3738b36d/f97a10271f3546439d1f6c5bfd416a24/FLAG2e7a6a663 [2021-10-28 23:09:55,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:09:55,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 23:09:55,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/b3738b36d/f97a10271f3546439d1f6c5bfd416a24/FLAG2e7a6a663 [2021-10-28 23:09:55,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/data/b3738b36d/f97a10271f3546439d1f6c5bfd416a24 [2021-10-28 23:09:55,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:09:55,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:09:55,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:55,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:09:55,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:09:55,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:55,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@272dd9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55, skipping insertion in model container [2021-10-28 23:09:55,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:55,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:09:55,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:09:55,886 WARN L228 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_0072672a-5d14-4795-9e74-7d86ab0c5084/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 23:09:55,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:55,924 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:09:55,940 WARN L228 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_0072672a-5d14-4795-9e74-7d86ab0c5084/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 23:09:55,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:55,973 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:09:55,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55 WrapperNode [2021-10-28 23:09:55,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:55,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:55,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:09:55,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:09:55,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:56,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:09:56,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:09:56,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:09:56,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:09:56,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:09:56,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:09:56,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:09:56,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (1/1) ... [2021-10-28 23:09:56,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:09:56,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:56,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:56,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:09:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 23:09:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:09:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:09:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:09:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:09:56,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:09:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:09:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:09:56,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:09:56,907 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 23:09:56,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:56 BoogieIcfgContainer [2021-10-28 23:09:56,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:09:56,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:09:56,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:09:56,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:09:56,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:09:55" (1/3) ... [2021-10-28 23:09:56,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4decd4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:09:56, skipping insertion in model container [2021-10-28 23:09:56,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:55" (2/3) ... [2021-10-28 23:09:56,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4decd4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:09:56, skipping insertion in model container [2021-10-28 23:09:56,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:56" (3/3) ... [2021-10-28 23:09:56,919 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2021-10-28 23:09:56,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:09:56,926 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:09:56,982 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:09:56,990 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:09:56,990 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:09:57,005 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) [2021-10-28 23:09:57,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 23:09:57,011 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:09:57,011 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 23:09:57,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:09:57,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:57,019 INFO L85 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2021-10-28 23:09:57,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:09:57,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896534631] [2021-10-28 23:09:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:57,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:09:57,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:09:57,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:09:57,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:09:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:57,449 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:57,683 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:09:57,685 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:09:57,686 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:09:57,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:57,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:09:57,891 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 23:09:57,901 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:09:57,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:09:57 BoogieIcfgContainer [2021-10-28 23:09:57,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:09:57,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:57,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:57,924 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:57,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:56" (3/4) ... [2021-10-28 23:09:57,927 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:09:57,975 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:09:57,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:57,984 INFO L168 Benchmark]: Toolchain (without parser) took 2316.01 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 49.5 MB in the beginning and 72.6 MB in the end (delta: -23.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:57,985 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 48.9 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:57,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.23 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 38.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:57,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.66 ms. Allocated memory is still 67.1 MB. Free memory was 38.9 MB in the beginning and 37.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:57,989 INFO L168 Benchmark]: Boogie Preprocessor took 67.94 ms. Allocated memory is still 67.1 MB. Free memory was 37.2 MB in the beginning and 36.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:57,990 INFO L168 Benchmark]: RCFGBuilder took 791.39 ms. Allocated memory is still 67.1 MB. Free memory was 36.0 MB in the beginning and 42.8 MB in the end (delta: -6.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:57,991 INFO L168 Benchmark]: TraceAbstraction took 1011.72 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 42.3 MB in the beginning and 74.6 MB in the end (delta: -32.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:57,994 INFO L168 Benchmark]: Witness Printer took 57.83 ms. Allocated memory is still 92.3 MB. Free memory was 74.6 MB in the beginning and 72.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:57,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 48.9 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.23 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 38.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.66 ms. Allocated memory is still 67.1 MB. Free memory was 38.9 MB in the beginning and 37.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.94 ms. Allocated memory is still 67.1 MB. Free memory was 37.2 MB in the beginning and 36.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 791.39 ms. Allocated memory is still 67.1 MB. Free memory was 36.0 MB in the beginning and 42.8 MB in the end (delta: -6.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1011.72 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 42.3 MB in the beginning and 74.6 MB in the end (delta: -32.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Witness Printer took 57.83 ms. Allocated memory is still 92.3 MB. Free memory was 74.6 MB in the beginning and 72.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [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; [L33] r = cast(a) [L9] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, 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, 0.3s 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 proved your program to be incorrect! [2021-10-28 23:09:58,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0072672a-5d14-4795-9e74-7d86ab0c5084/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...