./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 197e06cdc19dadc7ee995542a4677229fc9518691d9357ae11526a5e91dbad37 --- 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 [2022-12-14 12:51:37,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:51:37,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:51:37,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:51:37,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:51:37,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:51:37,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:51:37,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:51:37,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:51:37,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:51:37,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:51:37,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:51:37,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:51:37,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:51:37,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:51:37,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:51:37,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:51:37,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:51:37,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:51:37,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:51:37,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:51:37,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:51:37,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:51:37,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:51:37,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:51:37,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:51:37,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:51:37,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:51:37,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:51:37,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:51:37,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:51:37,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:51:37,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:51:37,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:51:37,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:51:37,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:51:37,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:51:37,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:51:37,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:51:37,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:51:37,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:51:37,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:51:37,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:51:37,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:51:37,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:51:37,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:51:37,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:51:37,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:51:37,416 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:51:37,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:51:37,416 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:51:37,416 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:51:37,417 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:51:37,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:51:37,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:51:37,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:51:37,417 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:51:37,417 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:51:37,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:51:37,418 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:51:37,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:51:37,418 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:51:37,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:51:37,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:51:37,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:51:37,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:51:37,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:51:37,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:51:37,420 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:51:37,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:51:37,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:51:37,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:51:37,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:51:37,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:51:37,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:51:37,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:51:37,421 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:51:37,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:51:37,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:51:37,421 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:51:37,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:51:37,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:51:37,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:51:37,422 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_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 197e06cdc19dadc7ee995542a4677229fc9518691d9357ae11526a5e91dbad37 [2022-12-14 12:51:37,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:51:37,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:51:37,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:51:37,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:51:37,614 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:51:37,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-12-14 12:51:40,190 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:51:40,345 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:51:40,345 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-12-14 12:51:40,349 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data/32733b97b/4b9ba81fcb9e40758ac735b80bffbcc6/FLAGe1e288458 [2022-12-14 12:51:40,757 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data/32733b97b/4b9ba81fcb9e40758ac735b80bffbcc6 [2022-12-14 12:51:40,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:51:40,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:51:40,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:51:40,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:51:40,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:51:40,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4373e0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40, skipping insertion in model container [2022-12-14 12:51:40,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:51:40,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:51:40,877 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_c0a866b6-b477-4872-a647-ade699167a5d/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-12-14 12:51:40,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:51:40,888 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:51:40,897 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_c0a866b6-b477-4872-a647-ade699167a5d/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-12-14 12:51:40,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:51:40,906 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:51:40,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40 WrapperNode [2022-12-14 12:51:40,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:51:40,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:51:40,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:51:40,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:51:40,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,928 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-12-14 12:51:40,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:51:40,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:51:40,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:51:40,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:51:40,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,939 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:51:40,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:51:40,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:51:40,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:51:40,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (1/1) ... [2022-12-14 12:51:40,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:51:40,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:51:40,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:51:40,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:51:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:51:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:51:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:51:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:51:41,048 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:51:41,049 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:51:41,096 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:51:41,106 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:51:41,106 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:51:41,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:41 BoogieIcfgContainer [2022-12-14 12:51:41,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:51:41,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:51:41,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:51:41,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:51:41,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:51:40" (1/3) ... [2022-12-14 12:51:41,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483feb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:51:41, skipping insertion in model container [2022-12-14 12:51:41,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:40" (2/3) ... [2022-12-14 12:51:41,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483feb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:51:41, skipping insertion in model container [2022-12-14 12:51:41,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:41" (3/3) ... [2022-12-14 12:51:41,114 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2022-12-14 12:51:41,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:51:41,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:51:41,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:51:41,169 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=FINITE_AUTOMATA, 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;@2f6d037a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:51:41,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:51:41,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:51:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:51:41,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:41,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:51:41,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:41,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:41,182 INFO L85 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2022-12-14 12:51:41,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:51:41,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296515156] [2022-12-14 12:51:41,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:41,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:51:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:51:41,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:51:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:51:41,269 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:51:41,270 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:51:41,271 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 12:51:41,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:51:41,276 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 12:51:41,280 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:51:41,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:51:41 BoogieIcfgContainer [2022-12-14 12:51:41,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:51:41,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:51:41,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:51:41,291 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:51:41,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:41" (3/4) ... [2022-12-14 12:51:41,294 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 12:51:41,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:51:41,295 INFO L158 Benchmark]: Toolchain (without parser) took 533.60ms. Allocated memory is still 144.7MB. Free memory was 113.8MB in the beginning and 79.1MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 12:51:41,295 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:51:41,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.06ms. Allocated memory is still 144.7MB. Free memory was 113.6MB in the beginning and 103.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 12:51:41,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.91ms. Allocated memory is still 144.7MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:51:41,296 INFO L158 Benchmark]: Boogie Preprocessor took 11.74ms. Allocated memory is still 144.7MB. Free memory was 102.6MB in the beginning and 101.7MB in the end (delta: 968.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:51:41,296 INFO L158 Benchmark]: RCFGBuilder took 167.22ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 92.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 12:51:41,297 INFO L158 Benchmark]: TraceAbstraction took 180.49ms. Allocated memory is still 144.7MB. Free memory was 91.7MB in the beginning and 79.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 12:51:41,297 INFO L158 Benchmark]: Witness Printer took 3.29ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 79.1MB in the end (delta: 484.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:51:41,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.06ms. Allocated memory is still 144.7MB. Free memory was 113.6MB in the beginning and 103.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.91ms. Allocated memory is still 144.7MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.74ms. Allocated memory is still 144.7MB. Free memory was 102.6MB in the beginning and 101.7MB in the end (delta: 968.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 167.22ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 92.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 180.49ms. Allocated memory is still 144.7MB. Free memory was 91.7MB in the beginning and 79.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.29ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 79.1MB in the end (delta: 484.2kB). 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: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L6] float f = 1; [L7] int i = f; [L8] COND TRUE i == 1 VAL [i=1] [L12] reach_error() VAL [i=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 [2022-12-14 12:51:41,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 197e06cdc19dadc7ee995542a4677229fc9518691d9357ae11526a5e91dbad37 --- 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 [2022-12-14 12:51:42,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:51:42,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:51:42,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:51:42,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:51:42,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:51:42,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:51:42,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:51:42,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:51:42,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:51:42,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:51:42,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:51:42,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:51:42,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:51:42,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:51:42,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:51:42,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:51:42,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:51:42,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:51:42,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:51:42,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:51:42,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:51:42,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:51:42,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:51:42,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:51:42,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:51:42,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:51:42,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:51:42,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:51:42,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:51:42,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:51:42,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:51:42,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:51:42,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:51:42,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:51:42,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:51:42,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:51:42,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:51:42,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:51:42,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:51:42,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:51:42,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 12:51:42,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:51:42,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:51:42,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:51:42,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:51:42,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:51:42,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:51:42,989 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:51:42,989 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:51:42,989 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:51:42,989 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:51:42,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:51:42,989 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:51:42,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:51:42,990 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:51:42,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:51:42,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:51:42,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:51:42,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:51:42,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:51:42,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:51:42,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 12:51:42,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:51:42,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:51:42,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:51:42,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:51:42,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:51:42,993 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 12:51:42,993 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 12:51:42,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:51:42,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:51:42,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 12:51:42,993 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_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 197e06cdc19dadc7ee995542a4677229fc9518691d9357ae11526a5e91dbad37 [2022-12-14 12:51:43,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:51:43,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:51:43,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:51:43,247 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:51:43,247 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:51:43,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-12-14 12:51:45,751 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:51:45,901 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:51:45,901 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-12-14 12:51:45,906 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data/70518ee98/3cdad6f6c8c240f6959ac26b63291e9b/FLAG750bf8fb7 [2022-12-14 12:51:46,310 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/data/70518ee98/3cdad6f6c8c240f6959ac26b63291e9b [2022-12-14 12:51:46,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:51:46,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:51:46,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:51:46,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:51:46,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:51:46,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3758dff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46, skipping insertion in model container [2022-12-14 12:51:46,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:51:46,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:51:46,430 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_c0a866b6-b477-4872-a647-ade699167a5d/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-12-14 12:51:46,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:51:46,447 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:51:46,456 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_c0a866b6-b477-4872-a647-ade699167a5d/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-12-14 12:51:46,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:51:46,467 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:51:46,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46 WrapperNode [2022-12-14 12:51:46,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:51:46,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:51:46,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:51:46,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:51:46,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,500 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-12-14 12:51:46,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:51:46,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:51:46,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:51:46,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:51:46,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:51:46,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:51:46,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:51:46,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:51:46,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (1/1) ... [2022-12-14 12:51:46,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:51:46,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:51:46,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:51:46,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:51:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:51:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:51:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:51:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 12:51:46,630 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:51:46,631 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:51:46,703 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:51:46,708 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:51:46,708 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:51:46,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:46 BoogieIcfgContainer [2022-12-14 12:51:46,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:51:46,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:51:46,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:51:46,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:51:46,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:51:46" (1/3) ... [2022-12-14 12:51:46,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fe4b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:51:46, skipping insertion in model container [2022-12-14 12:51:46,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:51:46" (2/3) ... [2022-12-14 12:51:46,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fe4b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:51:46, skipping insertion in model container [2022-12-14 12:51:46,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:46" (3/3) ... [2022-12-14 12:51:46,716 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2022-12-14 12:51:46,730 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:51:46,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:51:46,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:51:46,779 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=FINITE_AUTOMATA, 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;@24ac04db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:51:46,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:51:46,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-12-14 12:51:46,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 12:51:46,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:46,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 12:51:46,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2022-12-14 12:51:46,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:51:46,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812659511] [2022-12-14 12:51:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:46,809 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 [2022-12-14 12:51:46,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:51:46,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/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) [2022-12-14 12:51:46,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 12:51:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:51:46,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:51:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:51:46,920 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 12:51:46,922 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:51:46,923 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 12:51:46,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 12:51:47,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 12:51:47,131 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 12:51:47,135 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:51:47,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:51:47 BoogieIcfgContainer [2022-12-14 12:51:47,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:51:47,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:51:47,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:51:47,150 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:51:47,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:51:46" (3/4) ... [2022-12-14 12:51:47,153 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 12:51:47,182 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:51:47,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:51:47,183 INFO L158 Benchmark]: Toolchain (without parser) took 868.50ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 41.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:51:47,183 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 46.1MB. Free memory was 25.0MB in the beginning and 24.9MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:51:47,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.04ms. Allocated memory is still 71.3MB. Free memory was 43.5MB in the beginning and 33.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 12:51:47,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.54ms. Allocated memory is still 71.3MB. Free memory was 33.1MB in the beginning and 51.7MB in the end (delta: -18.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-12-14 12:51:47,184 INFO L158 Benchmark]: Boogie Preprocessor took 17.59ms. Allocated memory is still 71.3MB. Free memory was 51.7MB in the beginning and 50.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:51:47,185 INFO L158 Benchmark]: RCFGBuilder took 190.68ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 42.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 12:51:47,185 INFO L158 Benchmark]: TraceAbstraction took 438.72ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 43.6MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:51:47,186 INFO L158 Benchmark]: Witness Printer took 31.73ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 41.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:51:47,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 46.1MB. Free memory was 25.0MB in the beginning and 24.9MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.04ms. Allocated memory is still 71.3MB. Free memory was 43.5MB in the beginning and 33.3MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.54ms. Allocated memory is still 71.3MB. Free memory was 33.1MB in the beginning and 51.7MB in the end (delta: -18.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.59ms. Allocated memory is still 71.3MB. Free memory was 51.7MB in the beginning and 50.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 190.68ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 42.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 438.72ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 43.6MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.73ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 41.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] float f = 1; [L7] int i = f; VAL [f=1.0, i=1] [L8] COND TRUE i == 1 VAL [f=1.0, i=1] [L12] reach_error() VAL [f=1.0, i=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 4 NumberOfCodeBlocks, 4 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! [2022-12-14 12:51:47,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a866b6-b477-4872-a647-ade699167a5d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE