./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 5e519f3a 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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 01:41:53,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:41:53,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:41:53,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:41:53,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:41:53,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:41:53,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:41:53,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:41:53,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:41:53,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:41:53,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:41:53,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:41:53,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:41:53,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:41:53,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:41:53,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:41:53,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:41:53,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:41:53,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:41:53,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:41:53,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:41:53,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:41:53,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:41:53,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:41:53,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:41:53,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:41:53,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:41:53,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:41:53,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:41:53,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:41:53,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:41:53,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:41:53,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:41:53,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:41:53,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:41:53,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:41:53,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:41:53,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:41:53,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:41:53,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:41:53,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:41:53,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:41:53,686 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:41:53,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:41:53,687 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:41:53,687 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:41:53,688 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:41:53,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:41:53,689 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:41:53,689 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:41:53,689 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:41:53,689 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:41:53,690 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:41:53,691 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:41:53,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:41:53,691 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:41:53,691 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:41:53,692 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:41:53,692 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:41:53,692 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:41:53,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:41:53,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:41:53,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:41:53,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:41:53,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:41:53,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:41:53,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:41:53,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:41:53,695 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:41:53,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:41:53,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:41:53,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:41:53,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:41:53,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:41:53,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:41:53,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:41:53,697 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:41:53,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:41:53,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:41:53,698 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:41:53,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:41:53,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:41:53,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:41:53,699 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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 197e06cdc19dadc7ee995542a4677229fc9518691d9357ae11526a5e91dbad37 [2022-11-03 01:41:53,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:41:54,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:41:54,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:41:54,030 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:41:54,030 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:41:54,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-11-03 01:41:54,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/49f66f3c1/d1c33fcd3a22470190a8e6b501f690f8/FLAG1b1737f0c [2022-11-03 01:41:54,564 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:41:54,564 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-11-03 01:41:54,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/49f66f3c1/d1c33fcd3a22470190a8e6b501f690f8/FLAG1b1737f0c [2022-11-03 01:41:54,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/49f66f3c1/d1c33fcd3a22470190a8e6b501f690f8 [2022-11-03 01:41:54,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:41:54,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:41:54,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:41:54,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:41:54,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:41:54,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:41:54" (1/1) ... [2022-11-03 01:41:54,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4595f472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:54, skipping insertion in model container [2022-11-03 01:41:54,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:41:54" (1/1) ... [2022-11-03 01:41:54,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:41:54,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:41:55,238 WARN L230 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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-11-03 01:41:55,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:41:55,265 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:41:55,288 WARN L230 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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-11-03 01:41:55,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:41:55,303 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:41:55,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55 WrapperNode [2022-11-03 01:41:55,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:41:55,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:41:55,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:41:55,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:41:55,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,340 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-03 01:41:55,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:41:55,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:41:55,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:41:55,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:41:55,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,365 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:41:55,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:41:55,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:41:55,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:41:55,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (1/1) ... [2022-11-03 01:41:55,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:41:55,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:41:55,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:41:55,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:41:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:41:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:41:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:41:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:41:55,524 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:41:55,526 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:41:55,614 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:41:55,627 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:41:55,627 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:41:55,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:55 BoogieIcfgContainer [2022-11-03 01:41:55,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:41:55,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:41:55,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:41:55,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:41:55,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:41:54" (1/3) ... [2022-11-03 01:41:55,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c4b169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:55, skipping insertion in model container [2022-11-03 01:41:55,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:55" (2/3) ... [2022-11-03 01:41:55,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c4b169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:55, skipping insertion in model container [2022-11-03 01:41:55,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:55" (3/3) ... [2022-11-03 01:41:55,640 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2022-11-03 01:41:55,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:41:55,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:41:55,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:41:55,719 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;@1f78c991, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:41:55,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:41:55,724 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) [2022-11-03 01:41:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 01:41:55,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:55,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 01:41:55,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:41:55,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:55,739 INFO L85 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2022-11-03 01:41:55,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:55,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456983343] [2022-11-03 01:41:55,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:55,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:41:55,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:41:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:41:55,855 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 01:41:55,857 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:41:55,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:41:55,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:41:55,865 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 01:41:55,870 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:41:55,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:41:55 BoogieIcfgContainer [2022-11-03 01:41:55,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:41:55,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:41:55,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:41:55,887 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:41:55,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:55" (3/4) ... [2022-11-03 01:41:55,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 01:41:55,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:41:55,893 INFO L158 Benchmark]: Toolchain (without parser) took 934.90ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 57.9MB in the beginning and 65.4MB in the end (delta: -7.6MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-11-03 01:41:55,893 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 90.2MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:41:55,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.72ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 57.7MB in the beginning and 89.9MB in the end (delta: -32.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:41:55,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.56ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 88.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:41:55,896 INFO L158 Benchmark]: Boogie Preprocessor took 31.30ms. Allocated memory is still 113.2MB. Free memory was 88.5MB in the beginning and 87.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:41:55,896 INFO L158 Benchmark]: RCFGBuilder took 256.19ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 79.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:41:55,897 INFO L158 Benchmark]: TraceAbstraction took 253.95ms. Allocated memory is still 113.2MB. Free memory was 78.4MB in the beginning and 65.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 01:41:55,898 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 113.2MB. Free memory was 65.8MB in the beginning and 65.4MB in the end (delta: 366.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:41:55,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 90.2MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.72ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 57.7MB in the beginning and 89.9MB in the end (delta: -32.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.56ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 88.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.30ms. Allocated memory is still 113.2MB. Free memory was 88.5MB in the beginning and 87.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 256.19ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 79.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 253.95ms. Allocated memory is still 113.2MB. Free memory was 78.4MB in the beginning and 65.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 113.2MB. Free memory was 65.8MB in the beginning and 65.4MB in the end (delta: 366.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 0.2s, 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=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 [2022-11-03 01:41:55,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 01:41:58,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:41:58,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:41:58,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:41:58,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:41:58,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:41:58,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:41:58,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:41:58,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:41:58,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:41:58,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:41:58,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:41:58,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:41:58,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:41:58,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:41:58,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:41:58,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:41:58,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:41:58,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:41:58,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:41:58,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:41:58,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:41:58,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:41:58,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:41:58,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:41:58,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:41:58,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:41:58,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:41:58,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:41:58,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:41:58,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:41:58,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:41:58,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:41:58,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:41:58,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:41:58,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:41:58,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:41:58,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:41:58,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:41:58,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:41:58,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:41:58,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 01:41:58,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:41:58,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:41:58,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:41:58,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:41:58,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:41:58,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:41:58,426 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:41:58,426 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:41:58,427 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:41:58,427 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:41:58,428 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:41:58,428 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:41:58,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:41:58,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:41:58,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:41:58,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:41:58,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:41:58,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:41:58,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:41:58,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:41:58,432 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 01:41:58,432 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 01:41:58,432 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:41:58,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:41:58,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:41:58,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:41:58,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:41:58,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 01:41:58,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:41:58,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:41:58,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:41:58,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:41:58,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:41:58,436 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 01:41:58,436 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 01:41:58,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:41:58,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:41:58,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 01:41:58,438 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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 197e06cdc19dadc7ee995542a4677229fc9518691d9357ae11526a5e91dbad37 [2022-11-03 01:41:58,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:41:58,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:41:58,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:41:58,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:41:58,850 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:41:58,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-11-03 01:41:58,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/41ed5870f/14d35bc39a944f799fe1e64c1e71ce1c/FLAG9de1ed927 [2022-11-03 01:41:59,376 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:41:59,377 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2022-11-03 01:41:59,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/41ed5870f/14d35bc39a944f799fe1e64c1e71ce1c/FLAG9de1ed927 [2022-11-03 01:41:59,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/data/41ed5870f/14d35bc39a944f799fe1e64c1e71ce1c [2022-11-03 01:41:59,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:41:59,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:41:59,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:41:59,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:41:59,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:41:59,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:41:59" (1/1) ... [2022-11-03 01:41:59,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5cc001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:59, skipping insertion in model container [2022-11-03 01:41:59,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:41:59" (1/1) ... [2022-11-03 01:41:59,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:41:59,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:41:59,983 WARN L230 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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-11-03 01:41:59,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:00,013 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:42:00,028 WARN L230 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_f3c1b73a-05a8-4886-90b6-a7f8917a2919/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2022-11-03 01:42:00,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:42:00,062 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:42:00,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00 WrapperNode [2022-11-03 01:42:00,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:42:00,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:00,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:42:00,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:42:00,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,119 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-11-03 01:42:00,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:42:00,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:42:00,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:42:00,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:42:00,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:42:00,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:42:00,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:42:00,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:42:00,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (1/1) ... [2022-11-03 01:42:00,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:42:00,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:42:00,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:42:00,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:42:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:42:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:42:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:42:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 01:42:00,292 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:42:00,294 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:42:00,436 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:42:00,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:42:00,441 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:42:00,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:00 BoogieIcfgContainer [2022-11-03 01:42:00,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:42:00,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:42:00,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:42:00,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:42:00,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:41:59" (1/3) ... [2022-11-03 01:42:00,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704572c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:00, skipping insertion in model container [2022-11-03 01:42:00,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:00" (2/3) ... [2022-11-03 01:42:00,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704572c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:00, skipping insertion in model container [2022-11-03 01:42:00,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:00" (3/3) ... [2022-11-03 01:42:00,454 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2022-11-03 01:42:00,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:42:00,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:42:00,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:42:00,550 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;@5a11ed57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:42:00,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:42:00,567 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) [2022-11-03 01:42:00,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 01:42:00,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:00,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 01:42:00,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:00,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2022-11-03 01:42:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:42:00,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301827623] [2022-11-03 01:42:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:00,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:42:00,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:42:00,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:42:00,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 01:42:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:42:00,707 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:42:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:42:00,756 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 01:42:00,758 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:42:00,759 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:42:00,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:42:00,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:42:00,965 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 01:42:00,969 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:42:00,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:42:00 BoogieIcfgContainer [2022-11-03 01:42:00,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:42:00,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:42:00,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:42:00,998 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:42:00,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:00" (3/4) ... [2022-11-03 01:42:01,001 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 01:42:01,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:42:01,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:42:01,034 INFO L158 Benchmark]: Toolchain (without parser) took 1273.41ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 42.3MB in the end (delta: 899.1kB). Peak memory consumption was 609.3kB. Max. memory is 16.1GB. [2022-11-03 01:42:01,035 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 50.3MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:01,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.95ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 49.5MB in the end (delta: -6.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 01:42:01,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.36ms. Allocated memory is still 65.0MB. Free memory was 49.5MB in the beginning and 48.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:42:01,036 INFO L158 Benchmark]: Boogie Preprocessor took 21.80ms. Allocated memory is still 65.0MB. Free memory was 48.1MB in the beginning and 46.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:01,037 INFO L158 Benchmark]: RCFGBuilder took 300.35ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 38.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:42:01,037 INFO L158 Benchmark]: TraceAbstraction took 548.72ms. Allocated memory is still 65.0MB. Free memory was 37.7MB in the beginning and 43.8MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:01,038 INFO L158 Benchmark]: Witness Printer took 36.85ms. Allocated memory is still 65.0MB. Free memory was 43.8MB in the beginning and 42.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:42:01,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 50.3MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.95ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 49.5MB in the end (delta: -6.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.36ms. Allocated memory is still 65.0MB. Free memory was 49.5MB in the beginning and 48.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.80ms. Allocated memory is still 65.0MB. Free memory was 48.1MB in the beginning and 46.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 300.35ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 38.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 548.72ms. Allocated memory is still 65.0MB. Free memory was 37.7MB in the beginning and 43.8MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.85ms. Allocated memory is still 65.0MB. Free memory was 43.8MB in the beginning and 42.3MB in the end (delta: 1.5MB). 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 - 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! [2022-11-03 01:42:01,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c1b73a-05a8-4886-90b6-a7f8917a2919/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE