./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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg --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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg --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 08:40:27,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:40:27,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:40:28,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:40:28,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:40:28,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:40:28,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:40:28,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:40:28,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:40:28,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:40:28,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:40:28,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:40:28,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:40:28,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:40:28,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:40:28,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:40:28,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:40:28,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:40:28,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:40:28,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:40:28,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:40:28,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:40:28,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:40:28,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:40:28,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:40:28,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:40:28,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:40:28,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:40:28,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:40:28,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:40:28,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:40:28,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:40:28,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:40:28,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:40:28,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:40:28,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:40:28,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:40:28,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:40:28,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:40:28,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:40:28,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:40:28,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:40:28,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:40:28,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:40:28,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:40:28,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:40:28,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:40:28,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:40:28,190 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:40:28,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:40:28,191 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:40:28,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:40:28,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:40:28,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:40:28,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:40:28,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:40:28,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:40:28,193 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:40:28,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:40:28,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:40:28,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:40:28,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:40:28,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:40:28,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:40:28,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:40:28,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:40:28,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:40:28,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:40:28,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:40:28,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:40:28,196 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:40:28,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:40:28,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:40:28,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:40:28,200 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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2021-10-28 08:40:28,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:40:28,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:40:28,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:40:28,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:40:28,603 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:40:28,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 08:40:28,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/e51c9b008/669cb3665159457cb4f6aca3f57d16d0/FLAGf640554a8 [2021-10-28 08:40:29,222 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:40:29,223 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 08:40:29,235 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/e51c9b008/669cb3665159457cb4f6aca3f57d16d0/FLAGf640554a8 [2021-10-28 08:40:29,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/e51c9b008/669cb3665159457cb4f6aca3f57d16d0 [2021-10-28 08:40:29,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:40:29,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:40:29,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:29,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:40:29,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:40:29,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618fd658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29, skipping insertion in model container [2021-10-28 08:40:29,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:40:29,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:40:29,777 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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 08:40:29,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:29,805 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:40:29,820 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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 08:40:29,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:29,846 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:40:29,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29 WrapperNode [2021-10-28 08:40:29,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:29,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:29,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:40:29,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:40:29,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:29,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:40:29,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:40:29,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:40:29,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:40:29,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:40:29,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:40:29,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:40:29,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (1/1) ... [2021-10-28 08:40:29,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:40:30,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:30,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:30,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:40:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:40:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:40:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 08:40:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:40:30,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:40:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:40:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:40:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:40:30,399 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:40:30,399 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 08:40:30,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:30 BoogieIcfgContainer [2021-10-28 08:40:30,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:40:30,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:40:30,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:40:30,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:40:30,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:40:29" (1/3) ... [2021-10-28 08:40:30,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c5e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:40:30, skipping insertion in model container [2021-10-28 08:40:30,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:29" (2/3) ... [2021-10-28 08:40:30,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c5e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:40:30, skipping insertion in model container [2021-10-28 08:40:30,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:30" (3/3) ... [2021-10-28 08:40:30,412 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2021-10-28 08:40:30,419 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:40:30,419 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:40:30,475 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:40:30,484 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 08:40:30,484 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:40:30,501 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 08:40:30,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 08:40:30,507 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:40:30,508 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:30,508 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:40:30,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2021-10-28 08:40:30,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:30,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632089542] [2021-10-28 08:40:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:30,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:30,696 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:30,815 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:30,818 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:40:30,819 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:30,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:40:30,826 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 08:40:30,830 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:40:30,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:40:30 BoogieIcfgContainer [2021-10-28 08:40:30,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:40:30,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:40:30,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:40:30,855 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:40:30,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:30" (3/4) ... [2021-10-28 08:40:30,860 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:40:30,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:40:30,863 INFO L168 Benchmark]: Toolchain (without parser) took 1273.50 ms. Allocated memory is still 94.4 MB. Free memory was 57.0 MB in the beginning and 45.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:30,864 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 73.3 MB in the beginning and 73.2 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:30,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.96 ms. Allocated memory is still 94.4 MB. Free memory was 56.8 MB in the beginning and 46.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:30,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.07 ms. Allocated memory is still 94.4 MB. Free memory was 46.9 MB in the beginning and 72.6 MB in the end (delta: -25.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:30,867 INFO L168 Benchmark]: Boogie Preprocessor took 43.50 ms. Allocated memory is still 94.4 MB. Free memory was 72.6 MB in the beginning and 71.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:30,868 INFO L168 Benchmark]: RCFGBuilder took 419.96 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 60.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:30,869 INFO L168 Benchmark]: TraceAbstraction took 449.81 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 45.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:30,870 INFO L168 Benchmark]: Witness Printer took 5.27 ms. Allocated memory is still 94.4 MB. Free memory was 45.2 MB in the beginning and 45.0 MB in the end (delta: 274.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:30,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 73.3 MB in the beginning and 73.2 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.96 ms. Allocated memory is still 94.4 MB. Free memory was 56.8 MB in the beginning and 46.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.07 ms. Allocated memory is still 94.4 MB. Free memory was 46.9 MB in the beginning and 72.6 MB in the end (delta: -25.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.50 ms. Allocated memory is still 94.4 MB. Free memory was 72.6 MB in the beginning and 71.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 419.96 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 60.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 449.81 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 45.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.27 ms. Allocated memory is still 94.4 MB. Free memory was 45.2 MB in the beginning and 45.0 MB in the end (delta: 274.6 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: 0.3s, 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, 0.0s 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 08:40:30,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/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 08:40:33,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:40:33,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:40:33,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:40:33,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:40:33,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:40:33,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:40:33,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:40:33,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:40:34,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:40:34,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:40:34,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:40:34,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:40:34,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:40:34,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:40:34,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:40:34,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:40:34,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:40:34,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:40:34,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:40:34,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:40:34,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:40:34,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:40:34,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:40:34,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:40:34,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:40:34,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:40:34,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:40:34,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:40:34,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:40:34,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:40:34,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:40:34,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:40:34,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:40:34,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:40:34,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:40:34,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:40:34,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:40:34,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:40:34,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:40:34,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:40:34,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 08:40:34,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:40:34,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:40:34,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:40:34,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:40:34,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:40:34,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:40:34,170 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:40:34,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:40:34,170 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:40:34,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:40:34,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:40:34,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:40:34,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:40:34,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:40:34,173 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:40:34,174 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:40:34,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:40:34,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:40:34,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:40:34,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:40:34,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:40:34,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:40:34,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:40:34,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:40:34,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:40:34,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:40:34,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:40:34,178 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:40:34,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:40:34,179 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:40:34,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:40:34,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:40:34,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:40:34,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:40:34,180 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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2021-10-28 08:40:34,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:40:34,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:40:34,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:40:34,679 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:40:34,683 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:40:34,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 08:40:34,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/335102c8d/631753c26316460283569d9b10a46ad1/FLAGae48844dd [2021-10-28 08:40:35,344 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:40:35,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/sv-benchmarks/c/float-benchs/cast_union_tight.c [2021-10-28 08:40:35,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/335102c8d/631753c26316460283569d9b10a46ad1/FLAGae48844dd [2021-10-28 08:40:35,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/data/335102c8d/631753c26316460283569d9b10a46ad1 [2021-10-28 08:40:35,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:40:35,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:40:35,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:35,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:40:35,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:40:35,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:35" (1/1) ... [2021-10-28 08:40:35,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd97d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:35, skipping insertion in model container [2021-10-28 08:40:35,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:35" (1/1) ... [2021-10-28 08:40:35,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:40:35,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:40:35,924 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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 08:40:35,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:35,952 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:40:35,965 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_5f7f309d-b077-499e-a1dc-7a06f38b29fa/sv-benchmarks/c/float-benchs/cast_union_tight.c[495,508] [2021-10-28 08:40:35,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:36,003 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:40:36,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36 WrapperNode [2021-10-28 08:40:36,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:36,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:36,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:40:36,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:40:36,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:36,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:40:36,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:40:36,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:40:36,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:40:36,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:40:36,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:40:36,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:40:36,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (1/1) ... [2021-10-28 08:40:36,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:40:36,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:36,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:36,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:40:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 08:40:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 08:40:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:40:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:40:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:40:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:40:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:40:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:40:36,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:40:36,823 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 08:40:36,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:36 BoogieIcfgContainer [2021-10-28 08:40:36,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:40:36,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:40:36,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:40:36,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:40:36,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:40:35" (1/3) ... [2021-10-28 08:40:36,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef3539f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:40:36, skipping insertion in model container [2021-10-28 08:40:36,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:36" (2/3) ... [2021-10-28 08:40:36,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef3539f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:40:36, skipping insertion in model container [2021-10-28 08:40:36,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:36" (3/3) ... [2021-10-28 08:40:36,836 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2021-10-28 08:40:36,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:40:36,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:40:36,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:40:36,923 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 08:40:36,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:40:36,938 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 08:40:36,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 08:40:36,943 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:40:36,943 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 08:40:36,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:40:36,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2021-10-28 08:40:36,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:40:36,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280521776] [2021-10-28 08:40:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:36,971 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:40:36,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:40:36,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:40:36,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:40:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:37,230 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:37,425 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 08:40:37,427 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:40:37,429 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:40:37,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:37,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:40:37,635 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 08:40:37,638 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:40:37,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:40:37 BoogieIcfgContainer [2021-10-28 08:40:37,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:40:37,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:40:37,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:40:37,672 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:40:37,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:36" (3/4) ... [2021-10-28 08:40:37,676 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:40:37,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:40:37,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:40:37,726 INFO L168 Benchmark]: Toolchain (without parser) took 2009.96 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 31.7 MB in the end (delta: -4.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:37,727 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory is still 31.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:37,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.28 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 44.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:37,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.58 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:37,729 INFO L168 Benchmark]: Boogie Preprocessor took 29.39 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 41.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:37,730 INFO L168 Benchmark]: RCFGBuilder took 726.06 ms. Allocated memory is still 60.8 MB. Free memory was 41.6 MB in the beginning and 31.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:37,730 INFO L168 Benchmark]: TraceAbstraction took 840.23 ms. Allocated memory is still 60.8 MB. Free memory was 30.6 MB in the beginning and 33.6 MB in the end (delta: -3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:37,731 INFO L168 Benchmark]: Witness Printer took 52.45 ms. Allocated memory is still 60.8 MB. Free memory was 33.6 MB in the beginning and 31.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:37,735 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 50.3 MB. Free memory is still 31.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.28 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 44.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.58 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.39 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 41.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 726.06 ms. Allocated memory is still 60.8 MB. Free memory was 41.6 MB in the beginning and 31.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 840.23 ms. Allocated memory is still 60.8 MB. Free memory was 30.6 MB in the beginning and 33.6 MB in the end (delta: -3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 52.45 ms. Allocated memory is still 60.8 MB. Free memory was 33.6 MB in the beginning and 31.7 MB in the end (delta: 1.8 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: 0.7s, 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, 0.2s 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 08:40:37,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f7f309d-b077-499e-a1dc-7a06f38b29fa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...