./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8 --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 e448f16723ad202cc72d167f8951516486910b6c33698da967b6635bbb5adec7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:33:42,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:33:42,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:33:42,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:33:42,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:33:42,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:33:42,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:33:42,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:33:42,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:33:42,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:33:42,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:33:42,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:33:42,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:33:42,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:33:42,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:33:42,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:33:42,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:33:42,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:33:42,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:33:42,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:33:42,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:33:42,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:33:42,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:33:42,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:33:42,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:33:42,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:33:42,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:33:42,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:33:42,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:33:42,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:33:42,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:33:42,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:33:42,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:33:42,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:33:42,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:33:42,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:33:42,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:33:42,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:33:42,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:33:42,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:33:42,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:33:42,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:33:42,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:33:42,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:33:42,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:33:42,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:33:42,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:33:42,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:33:42,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:33:42,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:33:42,529 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:33:42,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:33:42,529 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:33:42,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:33:42,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:33:42,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:33:42,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:33:42,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:33:42,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:33:42,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:33:42,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:33:42,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:33:42,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:33:42,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:33:42,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:33:42,531 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:33:42,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:33:42,531 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:33:42,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:33:42,532 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:33:42,532 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e448f16723ad202cc72d167f8951516486910b6c33698da967b6635bbb5adec7 [2022-12-13 18:33:42,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:33:42,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:33:42,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:33:42,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:33:42,719 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:33:42,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c [2022-12-13 18:33:45,259 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:33:45,436 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:33:45,436 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c [2022-12-13 18:33:45,444 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data/2e37a32e6/8b9cfb89e474481991936d5e10d62738/FLAG2cc877f2d [2022-12-13 18:33:45,814 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data/2e37a32e6/8b9cfb89e474481991936d5e10d62738 [2022-12-13 18:33:45,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:33:45,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:33:45,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:33:45,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:33:45,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:33:45,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:33:45" (1/1) ... [2022-12-13 18:33:45,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3306aef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:45, skipping insertion in model container [2022-12-13 18:33:45,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:33:45" (1/1) ... [2022-12-13 18:33:45,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:33:45,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:33:45,970 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[1999,2012] [2022-12-13 18:33:45,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[2393,2406] [2022-12-13 18:33:46,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:33:46,006 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:33:46,016 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[1999,2012] [2022-12-13 18:33:46,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[2393,2406] [2022-12-13 18:33:46,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:33:46,044 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:33:46,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46 WrapperNode [2022-12-13 18:33:46,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:33:46,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:33:46,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:33:46,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:33:46,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,070 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-12-13 18:33:46,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:33:46,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:33:46,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:33:46,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:33:46,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,088 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:33:46,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:33:46,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:33:46,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:33:46,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (1/1) ... [2022-12-13 18:33:46,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:33:46,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:33:46,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:33:46,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:33:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:33:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 18:33:46,147 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 18:33:46,147 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-12-13 18:33:46,148 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-12-13 18:33:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:33:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:33:46,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:33:46,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 18:33:46,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 18:33:46,208 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:33:46,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:33:46,487 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:33:46,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:33:46,493 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 18:33:46,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:33:46 BoogieIcfgContainer [2022-12-13 18:33:46,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:33:46,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:33:46,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:33:46,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:33:46,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:33:45" (1/3) ... [2022-12-13 18:33:46,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16dcfbed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:33:46, skipping insertion in model container [2022-12-13 18:33:46,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:46" (2/3) ... [2022-12-13 18:33:46,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16dcfbed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:33:46, skipping insertion in model container [2022-12-13 18:33:46,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:33:46" (3/3) ... [2022-12-13 18:33:46,501 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4+soft_float_4-2a.c.cil.c [2022-12-13 18:33:46,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:33:46,515 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:33:46,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:33:46,558 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f314355, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:33:46,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:33:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 73 states have internal predecessors, (111), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 18:33:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 18:33:46,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:33:46,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:33:46,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:33:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:33:46,574 INFO L85 PathProgramCache]: Analyzing trace with hash -929888677, now seen corresponding path program 1 times [2022-12-13 18:33:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:33:46,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131647229] [2022-12-13 18:33:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:33:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:33:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:33:46,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:33:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:33:46,698 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:33:46,700 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:33:46,701 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 18:33:46,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 18:33:46,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:33:46,708 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 18:33:46,712 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:33:46,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:33:46 BoogieIcfgContainer [2022-12-13 18:33:46,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:33:46,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:33:46,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:33:46,729 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:33:46,729 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:33:46" (3/4) ... [2022-12-13 18:33:46,732 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:33:46,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:33:46,733 INFO L158 Benchmark]: Toolchain (without parser) took 914.24ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 101.0MB in the beginning and 123.4MB in the end (delta: -22.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-12-13 18:33:46,733 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:33:46,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.47ms. Allocated memory is still 132.1MB. Free memory was 101.0MB in the beginning and 86.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:33:46,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.75ms. Allocated memory is still 132.1MB. Free memory was 86.9MB in the beginning and 85.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:33:46,734 INFO L158 Benchmark]: Boogie Preprocessor took 20.23ms. Allocated memory is still 132.1MB. Free memory was 85.0MB in the beginning and 83.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:33:46,734 INFO L158 Benchmark]: RCFGBuilder took 403.47ms. Allocated memory is still 132.1MB. Free memory was 83.4MB in the beginning and 64.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 18:33:46,735 INFO L158 Benchmark]: TraceAbstraction took 231.25ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 63.8MB in the beginning and 124.0MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:33:46,735 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 159.4MB. Free memory was 124.0MB in the beginning and 123.4MB in the end (delta: 628.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:33:46,737 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.47ms. Allocated memory is still 132.1MB. Free memory was 101.0MB in the beginning and 86.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.75ms. Allocated memory is still 132.1MB. Free memory was 86.9MB in the beginning and 85.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.23ms. Allocated memory is still 132.1MB. Free memory was 85.0MB in the beginning and 83.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.47ms. Allocated memory is still 132.1MB. Free memory was 83.4MB in the beginning and 64.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 231.25ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 63.8MB in the beginning and 124.0MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 159.4MB. Free memory was 124.0MB in the beginning and 123.4MB in the end (delta: 628.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L310] COND TRUE __VERIFIER_nondet_int() [L311] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39844f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 61]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 85 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:33:46,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8 --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 e448f16723ad202cc72d167f8951516486910b6c33698da967b6635bbb5adec7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:33:48,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:33:48,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:33:48,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:33:48,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:33:48,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:33:48,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:33:48,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:33:48,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:33:48,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:33:48,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:33:48,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:33:48,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:33:48,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:33:48,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:33:48,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:33:48,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:33:48,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:33:48,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:33:48,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:33:48,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:33:48,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:33:48,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:33:48,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:33:48,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:33:48,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:33:48,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:33:48,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:33:48,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:33:48,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:33:48,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:33:48,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:33:48,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:33:48,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:33:48,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:33:48,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:33:48,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:33:48,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:33:48,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:33:48,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:33:48,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:33:48,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 18:33:48,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:33:48,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:33:48,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:33:48,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:33:48,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:33:48,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:33:48,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:33:48,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:33:48,441 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:33:48,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:33:48,441 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:33:48,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:33:48,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:33:48,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:33:48,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:33:48,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:33:48,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:33:48,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:33:48,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:33:48,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:33:48,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:33:48,444 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:33:48,445 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e448f16723ad202cc72d167f8951516486910b6c33698da967b6635bbb5adec7 [2022-12-13 18:33:48,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:33:48,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:33:48,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:33:48,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:33:48,669 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:33:48,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c [2022-12-13 18:33:51,249 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:33:51,441 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:33:51,442 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c [2022-12-13 18:33:51,449 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data/575ae63a1/26dc8ca159d04ac7ba2ba7c5559a7c8d/FLAG9cb139641 [2022-12-13 18:33:51,464 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/data/575ae63a1/26dc8ca159d04ac7ba2ba7c5559a7c8d [2022-12-13 18:33:51,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:33:51,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:33:51,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:33:51,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:33:51,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:33:51,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec79989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51, skipping insertion in model container [2022-12-13 18:33:51,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:33:51,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:33:51,621 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[1999,2012] [2022-12-13 18:33:51,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[2393,2406] [2022-12-13 18:33:51,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:33:51,662 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:33:51,673 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[1999,2012] [2022-12-13 18:33:51,674 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/sv-benchmarks/c/combinations/square_4+soft_float_4-2a.c.cil.c[2393,2406] [2022-12-13 18:33:51,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:33:51,704 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:33:51,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51 WrapperNode [2022-12-13 18:33:51,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:33:51,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:33:51,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:33:51,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:33:51,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,734 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2022-12-13 18:33:51,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:33:51,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:33:51,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:33:51,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:33:51,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,755 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:33:51,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:33:51,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:33:51,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:33:51,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (1/1) ... [2022-12-13 18:33:51,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:33:51,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:33:51,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:33:51,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:33:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:33:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:33:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 18:33:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 18:33:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-12-13 18:33:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-12-13 18:33:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:33:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:33:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 18:33:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 18:33:51,901 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:33:51,902 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:33:54,256 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:33:54,261 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:33:54,262 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 18:33:54,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:33:54 BoogieIcfgContainer [2022-12-13 18:33:54,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:33:54,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:33:54,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:33:54,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:33:54,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:33:51" (1/3) ... [2022-12-13 18:33:54,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a09694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:33:54, skipping insertion in model container [2022-12-13 18:33:54,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:33:51" (2/3) ... [2022-12-13 18:33:54,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a09694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:33:54, skipping insertion in model container [2022-12-13 18:33:54,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:33:54" (3/3) ... [2022-12-13 18:33:54,269 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4+soft_float_4-2a.c.cil.c [2022-12-13 18:33:54,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:33:54,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:33:54,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:33:54,321 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64a1ece9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:33:54,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:33:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 18:33:54,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 18:33:54,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:33:54,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:33:54,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:33:54,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:33:54,333 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-12-13 18:33:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:33:54,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202267707] [2022-12-13 18:33:54,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:33:54,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:33:54,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:33:54,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 18:33:54,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 18:33:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:33:54,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 18:33:54,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:33:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:33:54,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:33:54,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:33:54,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202267707] [2022-12-13 18:33:54,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202267707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:33:54,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:33:54,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:33:54,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157549901] [2022-12-13 18:33:54,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:33:54,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:33:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:33:54,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:33:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:33:54,864 INFO L87 Difference]: Start difference. First operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:33:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:33:54,884 INFO L93 Difference]: Finished difference Result 121 states and 178 transitions. [2022-12-13 18:33:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:33:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 18:33:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:33:54,891 INFO L225 Difference]: With dead ends: 121 [2022-12-13 18:33:54,891 INFO L226 Difference]: Without dead ends: 56 [2022-12-13 18:33:54,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:33:54,895 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:33:54,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:33:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-13 18:33:54,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-12-13 18:33:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-13 18:33:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 73 transitions. [2022-12-13 18:33:54,929 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 73 transitions. Word has length 7 [2022-12-13 18:33:54,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:33:54,929 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 73 transitions. [2022-12-13 18:33:54,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:33:54,929 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 73 transitions. [2022-12-13 18:33:54,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 18:33:54,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:33:54,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:33:54,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:33:55,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:33:55,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:33:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:33:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-12-13 18:33:55,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:33:55,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674089538] [2022-12-13 18:33:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:33:55,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 18:33:55,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:33:55,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 18:33:55,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bc27e3b-e662-4f22-9381-105b067bbe4e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 18:48:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:48:41,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 18:48:41,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:48:56,791 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false