./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0260.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0260.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7 --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 647bc161061e103f8088ea3464d6a4d44d7e73a0b4bfb490fbf2839b361c9174 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:30:54,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:30:54,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:30:54,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:30:54,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:30:54,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:30:54,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:30:54,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:30:54,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:30:54,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:30:54,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:30:54,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:30:54,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:30:54,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:30:54,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:30:54,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:30:54,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:30:54,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:30:54,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:30:54,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:30:54,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:30:54,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:30:54,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:30:54,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:30:54,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:30:54,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:30:54,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:30:54,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:30:54,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:30:54,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:30:54,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:30:54,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:30:54,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:30:54,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:30:54,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:30:54,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:30:54,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:30:54,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:30:54,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:30:54,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:30:54,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:30:54,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:30:54,277 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:30:54,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:30:54,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:30:54,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:30:54,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:30:54,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:30:54,280 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:30:54,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:30:54,281 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:30:54,282 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:30:54,282 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:30:54,283 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:30:54,283 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:30:54,284 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:30:54,284 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:30:54,284 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:30:54,285 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:30:54,285 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:30:54,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:30:54,287 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:30:54,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:30:54,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:30:54,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:30:54,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:30:54,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:30:54,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:30:54,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:30:54,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:30:54,289 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:30:54,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:30:54,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:30:54,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:30:54,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:30:54,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:30:54,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:30:54,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:30:54,291 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:30:54,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:30:54,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:30:54,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:30:54,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:30:54,293 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bc161061e103f8088ea3464d6a4d44d7e73a0b4bfb490fbf2839b361c9174 [2021-11-25 19:30:54,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:30:54,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:30:54,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:30:54,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:30:54,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:30:54,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0260.c [2021-11-25 19:30:54,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/53c1990a7/b1ec2fa32f8a459f85ec46fdbd91adc7/FLAG28982052e [2021-11-25 19:30:55,338 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:30:55,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/sv-benchmarks/c/float-newlib/float_req_bl_0260.c [2021-11-25 19:30:55,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/53c1990a7/b1ec2fa32f8a459f85ec46fdbd91adc7/FLAG28982052e [2021-11-25 19:30:55,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/53c1990a7/b1ec2fa32f8a459f85ec46fdbd91adc7 [2021-11-25 19:30:55,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:30:55,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:30:55,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:30:55,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:30:55,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:30:55,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:30:55" (1/1) ... [2021-11-25 19:30:55,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9f1b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:55, skipping insertion in model container [2021-11-25 19:30:55,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:30:55" (1/1) ... [2021-11-25 19:30:55,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:30:55,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:30:56,055 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_8b456cb4-18e6-4c99-b755-7fee4e3772cd/sv-benchmarks/c/float-newlib/float_req_bl_0260.c[4552,4565] [2021-11-25 19:30:56,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:30:56,069 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:30:56,124 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_8b456cb4-18e6-4c99-b755-7fee4e3772cd/sv-benchmarks/c/float-newlib/float_req_bl_0260.c[4552,4565] [2021-11-25 19:30:56,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:30:56,143 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:30:56,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56 WrapperNode [2021-11-25 19:30:56,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:30:56,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:30:56,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:30:56,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:30:56,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,205 INFO L137 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 240 [2021-11-25 19:30:56,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:30:56,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:30:56,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:30:56,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:30:56,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:30:56,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:30:56,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:30:56,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:30:56,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (1/1) ... [2021-11-25 19:30:56,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:30:56,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:30:56,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:30:56,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:30:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:30:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:30:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:30:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-25 19:30:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:30:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-25 19:30:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:30:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:30:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:30:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:30:56,553 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:30:56,555 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:30:56,924 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:30:57,031 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:30:57,031 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-25 19:30:57,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:30:57 BoogieIcfgContainer [2021-11-25 19:30:57,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:30:57,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:30:57,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:30:57,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:30:57,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:30:55" (1/3) ... [2021-11-25 19:30:57,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:30:57, skipping insertion in model container [2021-11-25 19:30:57,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:30:56" (2/3) ... [2021-11-25 19:30:57,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:30:57, skipping insertion in model container [2021-11-25 19:30:57,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:30:57" (3/3) ... [2021-11-25 19:30:57,044 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0260.c [2021-11-25 19:30:57,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:30:57,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:30:57,103 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:30:57,111 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:30:57,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:30:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:57,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 19:30:57,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:30:57,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:30:57,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:30:57,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:30:57,143 INFO L85 PathProgramCache]: Analyzing trace with hash 97020922, now seen corresponding path program 1 times [2021-11-25 19:30:57,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:30:57,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864118501] [2021-11-25 19:30:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:57,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:30:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:30:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:30:57,336 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:30:57,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864118501] [2021-11-25 19:30:57,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864118501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:30:57,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:30:57,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:30:57,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009277750] [2021-11-25 19:30:57,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:30:57,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:30:57,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:30:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:30:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:30:57,380 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 states have internal predecessors, (68), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:30:57,435 INFO L93 Difference]: Finished difference Result 83 states and 135 transitions. [2021-11-25 19:30:57,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:30:57,438 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 19:30:57,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:30:57,448 INFO L225 Difference]: With dead ends: 83 [2021-11-25 19:30:57,449 INFO L226 Difference]: Without dead ends: 40 [2021-11-25 19:30:57,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:30:57,457 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:30:57,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:30:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-25 19:30:57,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-25 19:30:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-11-25 19:30:57,499 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 7 [2021-11-25 19:30:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:30:57,500 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-25 19:30:57,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:30:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2021-11-25 19:30:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:30:57,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:30:57,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:30:57,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:30:57,502 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:30:57,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:30:57,503 INFO L85 PathProgramCache]: Analyzing trace with hash 937925561, now seen corresponding path program 1 times [2021-11-25 19:30:57,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:30:57,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513856644] [2021-11-25 19:30:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:57,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:30:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:30:57,579 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:30:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:30:57,685 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:30:57,690 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:30:57,693 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:30:57,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:30:57,704 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 19:30:57,708 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:30:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:30:57 BoogieIcfgContainer [2021-11-25 19:30:57,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:30:57,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:30:57,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:30:57,743 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:30:57,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:30:57" (3/4) ... [2021-11-25 19:30:57,747 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 19:30:57,747 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:30:57,749 INFO L158 Benchmark]: Toolchain (without parser) took 2077.82ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.1MB in the beginning and 55.2MB in the end (delta: -10.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-25 19:30:57,750 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 81.8MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:30:57,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.40ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 44.9MB in the beginning and 70.9MB in the end (delta: -26.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 19:30:57,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.58ms. Allocated memory is still 98.6MB. Free memory was 70.9MB in the beginning and 68.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:30:57,752 INFO L158 Benchmark]: Boogie Preprocessor took 93.03ms. Allocated memory is still 98.6MB. Free memory was 68.4MB in the beginning and 66.7MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 19:30:57,753 INFO L158 Benchmark]: RCFGBuilder took 733.72ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 46.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-25 19:30:57,754 INFO L158 Benchmark]: TraceAbstraction took 704.98ms. Allocated memory is still 98.6MB. Free memory was 46.3MB in the beginning and 55.7MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:30:57,755 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 55.2MB in the end (delta: 429.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:30:57,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 81.8MB. Free memory was 61.3MB in the beginning and 61.3MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.40ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 44.9MB in the beginning and 70.9MB in the end (delta: -26.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.58ms. Allocated memory is still 98.6MB. Free memory was 70.9MB in the beginning and 68.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 93.03ms. Allocated memory is still 98.6MB. Free memory was 68.4MB in the beginning and 66.7MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 733.72ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 46.6MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 704.98ms. Allocated memory is still 98.6MB. Free memory was 46.3MB in the beginning and 55.7MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 55.2MB in the end (delta: 429.8kB). 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: 190]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 104, overapproximation of bitwiseAnd at line 118, overapproximation of someUnaryFLOAToperation at line 102, overapproximation of someBinaryArithmeticFLOAToperation at line 121. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L100-L108] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L185] float x = 0.0f / 0.0f; [L186] CALL, EXPR __ieee754_asinf(x) [L111] float t, w, p, q, c, r, s; [L112] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L114] ieee_float_shape_type gf_u; [L115] gf_u.value = (x) [L116] EXPR gf_u.word [L116] (hx) = gf_u.word [L118] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, hx=-1, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L119] COND TRUE ix == 0x3f800000 [L121] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, hx=-1, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L186] RET, EXPR __ieee754_asinf(x) [L186] float res = __ieee754_asinf(x); [L189] CALL, EXPR isnan_float(res) [L15] return x != x; [L189] RET, EXPR isnan_float(res) [L189] COND TRUE !isnan_float(res) [L190] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 43 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-25 19:30:57,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0260.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7 --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 647bc161061e103f8088ea3464d6a4d44d7e73a0b4bfb490fbf2839b361c9174 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:31:00,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:31:00,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:31:00,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:31:00,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:31:00,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:31:00,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:31:00,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:31:00,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:31:00,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:31:00,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:31:00,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:31:00,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:31:00,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:31:00,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:31:00,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:31:00,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:31:00,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:31:00,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:31:00,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:31:00,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:31:00,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:31:00,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:31:00,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:31:00,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:31:00,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:31:00,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:31:00,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:31:00,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:31:00,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:31:00,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:31:00,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:31:00,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:31:00,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:31:00,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:31:00,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:31:00,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:31:00,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:31:00,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:31:00,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:31:00,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:31:00,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 19:31:00,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:31:00,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:31:00,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:31:00,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:31:00,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:31:00,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:31:00,819 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:31:00,820 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:31:00,820 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:31:00,820 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:31:00,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:31:00,822 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:31:00,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:31:00,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:31:00,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:31:00,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:31:00,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:31:00,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:31:00,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:31:00,826 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 19:31:00,826 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 19:31:00,826 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 19:31:00,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:31:00,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:31:00,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:31:00,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:31:00,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:31:00,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 19:31:00,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:31:00,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:31:00,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:31:00,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:31:00,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:31:00,830 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 19:31:00,830 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 19:31:00,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:31:00,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:31:00,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:31:00,832 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_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bc161061e103f8088ea3464d6a4d44d7e73a0b4bfb490fbf2839b361c9174 [2021-11-25 19:31:01,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:31:01,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:31:01,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:31:01,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:31:01,354 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:31:01,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0260.c [2021-11-25 19:31:01,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/898e22a0e/915dbc1a53174c5a9cce7bb587114041/FLAGab37a1bc6 [2021-11-25 19:31:02,072 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:31:02,073 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/sv-benchmarks/c/float-newlib/float_req_bl_0260.c [2021-11-25 19:31:02,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/898e22a0e/915dbc1a53174c5a9cce7bb587114041/FLAGab37a1bc6 [2021-11-25 19:31:02,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/data/898e22a0e/915dbc1a53174c5a9cce7bb587114041 [2021-11-25 19:31:02,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:31:02,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:31:02,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:31:02,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:31:02,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:31:02,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:02,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf24952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02, skipping insertion in model container [2021-11-25 19:31:02,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:02,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:31:02,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:31:02,773 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_8b456cb4-18e6-4c99-b755-7fee4e3772cd/sv-benchmarks/c/float-newlib/float_req_bl_0260.c[4552,4565] [2021-11-25 19:31:02,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:31:02,793 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:31:02,854 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_8b456cb4-18e6-4c99-b755-7fee4e3772cd/sv-benchmarks/c/float-newlib/float_req_bl_0260.c[4552,4565] [2021-11-25 19:31:02,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:31:02,880 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:31:02,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02 WrapperNode [2021-11-25 19:31:02,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:31:02,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:31:02,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:31:02,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:31:02,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:02,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:02,969 INFO L137 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 240 [2021-11-25 19:31:02,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:31:02,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:31:02,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:31:02,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:31:02,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:02,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:02,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:02,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:03,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:03,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:03,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:03,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:31:03,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:31:03,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:31:03,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:31:03,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (1/1) ... [2021-11-25 19:31:03,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:31:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:31:03,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:31:03,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:31:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:31:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 19:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-25 19:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 19:31:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:31:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:31:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-25 19:31:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 19:31:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:31:03,255 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:31:03,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:31:16,004 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:31:16,014 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:31:16,014 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-25 19:31:16,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:31:16 BoogieIcfgContainer [2021-11-25 19:31:16,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:31:16,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:31:16,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:31:16,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:31:16,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:31:02" (1/3) ... [2021-11-25 19:31:16,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f63100d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:31:16, skipping insertion in model container [2021-11-25 19:31:16,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:31:02" (2/3) ... [2021-11-25 19:31:16,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f63100d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:31:16, skipping insertion in model container [2021-11-25 19:31:16,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:31:16" (3/3) ... [2021-11-25 19:31:16,058 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0260.c [2021-11-25 19:31:16,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:31:16,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:31:16,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:31:16,176 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:31:16,177 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:31:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 54 states have (on average 1.6666666666666667) internal successors, (90), 55 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:16,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:31:16,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:31:16,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:31:16,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:31:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:31:16,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1900532880, now seen corresponding path program 1 times [2021-11-25 19:31:16,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:31:16,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916732461] [2021-11-25 19:31:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:31:16,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:31:16,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:31:16,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:31:16,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 19:31:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:31:17,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 19:31:17,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:31:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:31:17,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:31:17,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:31:17,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916732461] [2021-11-25 19:31:17,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916732461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:31:17,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:31:17,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:31:17,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529978735] [2021-11-25 19:31:17,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:31:17,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:31:17,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:31:17,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:31:17,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:31:17,309 INFO L87 Difference]: Start difference. First operand has 56 states, 54 states have (on average 1.6666666666666667) internal successors, (90), 55 states have internal predecessors, (90), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:17,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:31:17,337 INFO L93 Difference]: Finished difference Result 110 states and 178 transitions. [2021-11-25 19:31:17,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:31:17,339 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:31:17,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:31:17,351 INFO L225 Difference]: With dead ends: 110 [2021-11-25 19:31:17,351 INFO L226 Difference]: Without dead ends: 53 [2021-11-25 19:31:17,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:31:17,360 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:31:17,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:31:17,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-25 19:31:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-25 19:31:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 52 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2021-11-25 19:31:17,406 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 70 transitions. Word has length 9 [2021-11-25 19:31:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:31:17,406 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 70 transitions. [2021-11-25 19:31:17,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:17,407 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2021-11-25 19:31:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 19:31:17,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:31:17,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:31:17,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-25 19:31:17,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:31:17,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:31:17,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:31:17,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1487817933, now seen corresponding path program 1 times [2021-11-25 19:31:17,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:31:17,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568515588] [2021-11-25 19:31:17,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:31:17,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:31:17,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:31:17,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:31:17,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 19:31:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:31:18,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:31:18,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:31:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:31:18,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:31:18,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:31:18,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568515588] [2021-11-25 19:31:18,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568515588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:31:18,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:31:18,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:31:18,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440569706] [2021-11-25 19:31:18,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:31:18,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:31:18,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:31:18,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:31:18,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:31:18,792 INFO L87 Difference]: Start difference. First operand 53 states and 70 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:31:18,809 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2021-11-25 19:31:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:31:18,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-25 19:31:18,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:31:18,811 INFO L225 Difference]: With dead ends: 58 [2021-11-25 19:31:18,812 INFO L226 Difference]: Without dead ends: 53 [2021-11-25 19:31:18,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:31:18,814 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:31:18,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2021-11-25 19:31:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-25 19:31:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-25 19:31:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 52 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:18,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2021-11-25 19:31:18,827 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 10 [2021-11-25 19:31:18,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:31:18,827 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2021-11-25 19:31:18,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2021-11-25 19:31:18,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:31:18,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:31:18,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:31:18,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:31:19,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:31:19,043 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:31:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:31:19,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1242404338, now seen corresponding path program 1 times [2021-11-25 19:31:19,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:31:19,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325916820] [2021-11-25 19:31:19,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:31:19,045 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:31:19,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:31:19,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:31:19,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 19:31:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:31:19,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 19:31:19,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:31:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:31:20,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:31:20,546 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:31:20,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325916820] [2021-11-25 19:31:20,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325916820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:31:20,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:31:20,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:31:20,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508406219] [2021-11-25 19:31:20,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:31:20,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:31:20,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:31:20,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:31:20,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:31:20,550 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:24,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:31:26,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:31:29,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:31:32,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 19:31:32,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:31:32,434 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-11-25 19:31:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:31:32,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 19:31:32,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:31:32,440 INFO L225 Difference]: With dead ends: 61 [2021-11-25 19:31:32,440 INFO L226 Difference]: Without dead ends: 53 [2021-11-25 19:31:32,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:31:32,443 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 36 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:31:32,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 276 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2021-11-25 19:31:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-25 19:31:32,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-25 19:31:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 52 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2021-11-25 19:31:32,454 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 11 [2021-11-25 19:31:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:31:32,455 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2021-11-25 19:31:32,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2021-11-25 19:31:32,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:31:32,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:31:32,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:31:32,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:31:32,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:31:32,667 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:31:32,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:31:32,669 INFO L85 PathProgramCache]: Analyzing trace with hash 601206874, now seen corresponding path program 1 times [2021-11-25 19:31:32,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 19:31:32,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476614151] [2021-11-25 19:31:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:31:32,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 19:31:32,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 19:31:32,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 19:31:32,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 19:31:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:31:34,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:31:34,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:31:34,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:31:34,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:31:34,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 19:31:34,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476614151] [2021-11-25 19:31:34,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476614151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:31:34,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:31:34,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:31:34,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236727254] [2021-11-25 19:31:34,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:31:34,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:31:34,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 19:31:34,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:31:34,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:31:34,850 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:34,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:31:34,854 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2021-11-25 19:31:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:31:34,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 19:31:34,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:31:34,855 INFO L225 Difference]: With dead ends: 53 [2021-11-25 19:31:34,855 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:31:34,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:31:34,857 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:31:34,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-11-25 19:31:34,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:31:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:31:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:34,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:31:34,860 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-25 19:31:34,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:31:34,861 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:31:34,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:31:34,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:31:34,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:31:34,865 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:31:34,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:31:35,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 19:31:35,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 19:31:35,463 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-25 19:31:35,468 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 19:31:35,468 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 139) no Hoare annotation was computed. [2021-11-25 19:31:35,468 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2021-11-25 19:31:35,468 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-25 19:31:35,469 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2021-11-25 19:31:35,469 INFO L854 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2021-11-25 19:31:35,470 INFO L858 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2021-11-25 19:31:35,470 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 139) no Hoare annotation was computed. [2021-11-25 19:31:35,470 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2021-11-25 19:31:35,470 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2021-11-25 19:31:35,470 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-11-25 19:31:35,470 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2021-11-25 19:31:35,471 INFO L854 garLoopResultBuilder]: At program point L156-2(lines 156 160) the Hoare annotation is: false [2021-11-25 19:31:35,471 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2021-11-25 19:31:35,471 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2021-11-25 19:31:35,471 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2021-11-25 19:31:35,471 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: false [2021-11-25 19:31:35,472 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2021-11-25 19:31:35,472 INFO L858 garLoopResultBuilder]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2021-11-25 19:31:35,472 INFO L854 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2021-11-25 19:31:35,472 INFO L858 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2021-11-25 19:31:35,472 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 19:31:35,472 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-25 19:31:35,473 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 139) no Hoare annotation was computed. [2021-11-25 19:31:35,473 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 139) no Hoare annotation was computed. [2021-11-25 19:31:35,473 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 138) no Hoare annotation was computed. [2021-11-25 19:31:35,473 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 96) no Hoare annotation was computed. [2021-11-25 19:31:35,473 INFO L858 garLoopResultBuilder]: For program point L92-1(lines 85 98) no Hoare annotation was computed. [2021-11-25 19:31:35,474 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 92 96) no Hoare annotation was computed. [2021-11-25 19:31:35,474 INFO L854 garLoopResultBuilder]: At program point L175(lines 110 176) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_asinf_#res#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-25 19:31:35,474 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-11-25 19:31:35,474 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-25 19:31:35,474 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-25 19:31:35,474 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2021-11-25 19:31:35,475 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2021-11-25 19:31:35,475 INFO L861 garLoopResultBuilder]: At program point L194(lines 178 195) the Hoare annotation is: true [2021-11-25 19:31:35,475 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 165) no Hoare annotation was computed. [2021-11-25 19:31:35,475 INFO L858 garLoopResultBuilder]: For program point L161-1(lines 153 171) no Hoare annotation was computed. [2021-11-25 19:31:35,475 INFO L858 garLoopResultBuilder]: For program point L161-2(lines 161 165) no Hoare annotation was computed. [2021-11-25 19:31:35,476 INFO L858 garLoopResultBuilder]: For program point L113-1(lines 113 117) no Hoare annotation was computed. [2021-11-25 19:31:35,476 INFO L854 garLoopResultBuilder]: At program point L113-2(lines 113 117) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_asinf_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-25 19:31:35,476 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-11-25 19:31:35,476 INFO L858 garLoopResultBuilder]: For program point L113-3(lines 113 117) no Hoare annotation was computed. [2021-11-25 19:31:35,476 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-11-25 19:31:35,476 INFO L854 garLoopResultBuilder]: At program point L97(lines 85 98) the Hoare annotation is: false [2021-11-25 19:31:35,477 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-25 19:31:35,477 INFO L854 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_asinf_#res#1|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2021-11-25 19:31:35,477 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-25 19:31:35,477 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 190) no Hoare annotation was computed. [2021-11-25 19:31:35,478 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2021-11-25 19:31:35,478 INFO L854 garLoopResultBuilder]: At program point L83(lines 19 84) the Hoare annotation is: false [2021-11-25 19:31:35,478 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-11-25 19:31:35,478 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 171) no Hoare annotation was computed. [2021-11-25 19:31:35,480 INFO L858 garLoopResultBuilder]: For program point L150-2(lines 110 176) no Hoare annotation was computed. [2021-11-25 19:31:35,480 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2021-11-25 19:31:35,484 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-25 19:31:35,486 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:31:35,499 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,505 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,506 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,507 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,508 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,510 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,510 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,510 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,511 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,512 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:31:35,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,515 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:31:35,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:31:35 BoogieIcfgContainer [2021-11-25 19:31:35,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:31:35,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:31:35,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:31:35,517 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:31:35,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:31:16" (3/4) ... [2021-11-25 19:31:35,521 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 19:31:35,536 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-25 19:31:35,536 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-25 19:31:35,537 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 19:31:35,537 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 19:31:35,565 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-25 19:31:35,565 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-25 19:31:35,566 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-11-25 19:31:35,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:31:35,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:31:35,593 INFO L158 Benchmark]: Toolchain (without parser) took 33171.41ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.7MB in the beginning and 64.5MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:31:35,593 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:31:35,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.88ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 56.4MB in the end (delta: -13.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-11-25 19:31:35,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.56ms. Allocated memory is still 77.6MB. Free memory was 56.4MB in the beginning and 53.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:31:35,595 INFO L158 Benchmark]: Boogie Preprocessor took 68.21ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:31:35,595 INFO L158 Benchmark]: RCFGBuilder took 12977.12ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 33.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 19:31:35,596 INFO L158 Benchmark]: TraceAbstraction took 19466.77ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 59.2MB in the beginning and 70.2MB in the end (delta: -10.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2021-11-25 19:31:35,596 INFO L158 Benchmark]: Witness Printer took 75.07ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 64.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 19:31:35,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.88ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 56.4MB in the end (delta: -13.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.56ms. Allocated memory is still 77.6MB. Free memory was 56.4MB in the beginning and 53.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.21ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 12977.12ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 33.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19466.77ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 59.2MB in the beginning and 70.2MB in the end (delta: -10.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 75.07ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 64.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 190]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 602 SdHoareTripleChecker+Invalid, 10.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 25 IncrementalHoareTripleChecker+Unchecked, 401 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 201 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 91 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 9 QuantifiedInterpolants, 230 SizeOfPredicates, 23 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2021-11-25 19:31:35,615 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,615 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,619 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,619 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant [2021-11-25 19:31:35,620 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,620 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,621 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,621 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,621 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,621 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,622 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,622 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,622 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,623 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,623 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,623 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,623 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,623 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,624 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,624 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 113]: Loop Invariant [2021-11-25 19:31:35,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:31:35,625 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 19:31:35,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 19:31:35,625 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-25 19:31:35,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b456cb4-18e6-4c99-b755-7fee4e3772cd/bin/utaipan-eEHZpOm5b7/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 Result: TRUE