./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:26,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:26,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:12:26,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:26,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:26,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:26,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:26,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:26,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:26,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:26,783 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:26,784 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:26,785 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:26,785 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:26,786 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:26,786 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:26,787 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:26,788 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:26,788 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:26,789 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:26,789 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:26,790 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:26,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:26,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:26,793 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:26,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:26,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:26,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:26,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:26,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:26,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:26,798 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:26,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:26,799 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:26,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:26,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:26,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:26,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:26,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:26,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:26,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:26,803 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:26,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:26,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:26,804 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:26,805 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:26,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:26,805 INFO L153 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_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 [2023-11-23 21:12:27,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:27,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:27,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:27,190 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:27,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:27,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-23 21:12:30,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:30,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:30,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-23 21:12:30,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data/18c30f972/b8fd8429788d443f8d17f0e1113abbe1/FLAG8fcb9328d [2023-11-23 21:12:30,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data/18c30f972/b8fd8429788d443f8d17f0e1113abbe1 [2023-11-23 21:12:30,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:30,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:30,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:30,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:30,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:30,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:30" (1/1) ... [2023-11-23 21:12:30,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ac5444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:30, skipping insertion in model container [2023-11-23 21:12:30,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:30" (1/1) ... [2023-11-23 21:12:30,888 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:31,121 WARN L240 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_e4f9b021-1508-41a5-973c-c12c571f6885/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-23 21:12:31,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:31,140 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:31,170 WARN L240 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_e4f9b021-1508-41a5-973c-c12c571f6885/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-23 21:12:31,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:31,188 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:31,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31 WrapperNode [2023-11-23 21:12:31,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:31,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:31,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:31,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:31,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,244 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2023-11-23 21:12:31,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:31,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:31,247 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:31,247 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:31,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:31,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:31,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:31,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:31,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (1/1) ... [2023-11-23 21:12:31,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:31,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:31,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:31,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:12:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 21:12:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:12:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 21:12:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:12:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:12:31,504 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:31,506 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:31,841 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:32,032 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:32,033 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-23 21:12:32,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:32 BoogieIcfgContainer [2023-11-23 21:12:32,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:32,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:32,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:32,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:32,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:30" (1/3) ... [2023-11-23 21:12:32,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30055dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:32, skipping insertion in model container [2023-11-23 21:12:32,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:31" (2/3) ... [2023-11-23 21:12:32,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30055dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:32, skipping insertion in model container [2023-11-23 21:12:32,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:32" (3/3) ... [2023-11-23 21:12:32,048 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2023-11-23 21:12:32,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:32,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:32,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:32,174 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@542f9cc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:32,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2023-11-23 21:12:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:12:32,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:32,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:32,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:32,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash 209039265, now seen corresponding path program 1 times [2023-11-23 21:12:32,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:32,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634365869] [2023-11-23 21:12:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:32,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:32,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:32,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634365869] [2023-11-23 21:12:32,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634365869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:32,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:32,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:32,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551053113] [2023-11-23 21:12:32,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:32,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:12:32,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:12:32,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:12:32,546 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2023-11-23 21:12:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:32,589 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2023-11-23 21:12:32,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:12:32,593 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 [2023-11-23 21:12:32,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:32,602 INFO L225 Difference]: With dead ends: 43 [2023-11-23 21:12:32,602 INFO L226 Difference]: Without dead ends: 20 [2023-11-23 21:12:32,605 INFO L412 NwaCegarLoop]: 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 [2023-11-23 21:12:32,611 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:32,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:32,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-23 21:12:32,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-23 21:12:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2023-11-23 21:12:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-23 21:12:32,649 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 9 [2023-11-23 21:12:32,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:32,650 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-23 21:12:32,650 INFO L496 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) [2023-11-23 21:12:32,651 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-23 21:12:32,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:12:32,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:32,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:32,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:12:32,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:32,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash -777904574, now seen corresponding path program 1 times [2023-11-23 21:12:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:32,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761142852] [2023-11-23 21:12:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:33,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:33,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761142852] [2023-11-23 21:12:33,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761142852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:33,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:33,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19718529] [2023-11-23 21:12:33,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:33,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:33,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:33,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:33,209 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-23 21:12:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:33,243 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-11-23 21:12:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:33,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2023-11-23 21:12:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:33,245 INFO L225 Difference]: With dead ends: 28 [2023-11-23 21:12:33,245 INFO L226 Difference]: Without dead ends: 20 [2023-11-23 21:12:33,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:33,248 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:33,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:33,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-23 21:12:33,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-23 21:12:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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) [2023-11-23 21:12:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-23 21:12:33,256 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2023-11-23 21:12:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:33,257 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-23 21:12:33,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-23 21:12:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-23 21:12:33,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:12:33,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:33,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:33,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:12:33,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:33,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:33,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1709573671, now seen corresponding path program 1 times [2023-11-23 21:12:33,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:33,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873423799] [2023-11-23 21:12:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:33,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:12:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:33,419 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:12:33,419 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:12:33,422 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:12:33,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:12:33,431 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:12:33,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:12:33,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-23 21:12:33,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:12:33 BoogieIcfgContainer [2023-11-23 21:12:33,487 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:12:33,489 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:12:33,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:12:33,491 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:12:33,496 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:32" (3/4) ... [2023-11-23 21:12:33,499 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:12:33,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:12:33,503 INFO L158 Benchmark]: Toolchain (without parser) took 2659.36ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 117.2MB in the beginning and 118.7MB in the end (delta: -1.5MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2023-11-23 21:12:33,503 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:33,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.13ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 105.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:12:33,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.36ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 104.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:33,515 INFO L158 Benchmark]: Boogie Preprocessor took 45.18ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 102.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:33,517 INFO L158 Benchmark]: RCFGBuilder took 743.39ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 79.1MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:33,520 INFO L158 Benchmark]: TraceAbstraction took 1448.47ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 78.7MB in the beginning and 118.7MB in the end (delta: -40.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-11-23 21:12:33,521 INFO L158 Benchmark]: Witness Printer took 12.85ms. Allocated memory is still 192.9MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:33,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.13ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 105.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.36ms. Allocated memory is still 151.0MB. Free memory was 105.9MB in the beginning and 104.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.18ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 102.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 743.39ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 79.1MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1448.47ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 78.7MB in the beginning and 118.7MB in the end (delta: -40.0MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 12.85ms. Allocated memory is still 192.9MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 69]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L64] float x = 0.0f; [L65] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=0, x=0] [L17] ieee_float_shape_type gf_u; [L18] EXPR gf_u.value = (x) [L19] EXPR gf_u.word [L19] EXPR (w) = gf_u.word [L16-L20] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=0, w=-880803841, x=0] [L21] signbit = w & 0x80000000 [L22] EXPR w & 0x7f800000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L23] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=23, signbit=-2147483648, w=-880803841, x=0] [L39] COND FALSE !(exponent_less_127 == 255) VAL [\old(x)=0, exponent_less_127=23, signbit=-2147483648, w=-880803841, x=0] [L42] return x; VAL [\old(x)=0, \result=0, exponent_less_127=23, signbit=-2147483648, w=-880803841, x=0] [L65] RET, EXPR trunc_float(x) [L65] float res = trunc_float(x); [L68] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=0, x=0] [L68] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L69] reach_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-11-23 21:12:33,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:36,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:36,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:12:36,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:36,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:36,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:36,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:36,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:36,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:36,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:36,991 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:36,992 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:36,993 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:36,995 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:36,996 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:36,996 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:36,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:36,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:36,999 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:37,001 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:37,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:37,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:37,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:37,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:37,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:12:37,004 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:12:37,005 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:12:37,005 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:37,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:37,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:37,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:37,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:12:37,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:37,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:37,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:37,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:37,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:37,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:37,011 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:12:37,013 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:12:37,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:37,014 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:37,014 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:37,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:37,016 INFO L153 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_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 [2023-11-23 21:12:37,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:37,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:37,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:37,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:37,514 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:37,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-23 21:12:40,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:41,036 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:41,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2023-11-23 21:12:41,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data/cd1a0a940/fe732cf940874dd8930d0450c633b5d6/FLAG9e4cf97da [2023-11-23 21:12:41,062 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/data/cd1a0a940/fe732cf940874dd8930d0450c633b5d6 [2023-11-23 21:12:41,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:41,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:41,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:41,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:41,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:41,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6630b751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41, skipping insertion in model container [2023-11-23 21:12:41,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,099 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:41,309 WARN L240 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_e4f9b021-1508-41a5-973c-c12c571f6885/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-23 21:12:41,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:41,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:41,354 WARN L240 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_e4f9b021-1508-41a5-973c-c12c571f6885/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2023-11-23 21:12:41,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:41,372 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:41,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41 WrapperNode [2023-11-23 21:12:41,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:41,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:41,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:41,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:41,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,415 INFO L138 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2023-11-23 21:12:41,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:41,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:41,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:41,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:41,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:41,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:41,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:41,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:41,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (1/1) ... [2023-11-23 21:12:41,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:41,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:41,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:41,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:12:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:12:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-23 21:12:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:12:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-23 21:12:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:12:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:12:41,702 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:41,705 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:42,055 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:42,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:42,109 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-23 21:12:42,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:42 BoogieIcfgContainer [2023-11-23 21:12:42,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:42,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:42,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:42,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:42,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:41" (1/3) ... [2023-11-23 21:12:42,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3ae2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:42, skipping insertion in model container [2023-11-23 21:12:42,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:41" (2/3) ... [2023-11-23 21:12:42,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3ae2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:42, skipping insertion in model container [2023-11-23 21:12:42,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:42" (3/3) ... [2023-11-23 21:12:42,124 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2023-11-23 21:12:42,145 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:42,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:42,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:42,219 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3308a433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:42,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2023-11-23 21:12:42,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:12:42,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:42,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:42,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:42,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash -891617069, now seen corresponding path program 1 times [2023-11-23 21:12:42,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:42,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999024521] [2023-11-23 21:12:42,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:42,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:42,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:42,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:12:42,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:12:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:42,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:12:42,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:42,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:42,456 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:42,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999024521] [2023-11-23 21:12:42,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999024521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:42,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:42,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:42,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607856316] [2023-11-23 21:12:42,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:42,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:12:42,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:42,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:12:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:12:42,509 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2023-11-23 21:12:42,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:42,544 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2023-11-23 21:12:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:12:42,548 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 [2023-11-23 21:12:42,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:42,557 INFO L225 Difference]: With dead ends: 43 [2023-11-23 21:12:42,557 INFO L226 Difference]: Without dead ends: 20 [2023-11-23 21:12:42,561 INFO L412 NwaCegarLoop]: 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 [2023-11-23 21:12:42,567 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:42,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:42,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-23 21:12:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-23 21:12:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2023-11-23 21:12:42,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-23 21:12:42,611 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 9 [2023-11-23 21:12:42,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:42,612 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-23 21:12:42,613 INFO L496 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) [2023-11-23 21:12:42,613 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-23 21:12:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:12:42,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:42,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:42,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:42,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:42,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:42,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1865421930, now seen corresponding path program 1 times [2023-11-23 21:12:42,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:42,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395827141] [2023-11-23 21:12:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:42,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:42,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:42,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:12:42,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:12:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:42,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:12:42,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:43,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:43,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:43,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395827141] [2023-11-23 21:12:43,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395827141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:43,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:43,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:12:43,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386621461] [2023-11-23 21:12:43,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:43,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:12:43,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:43,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:12:43,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:12:43,226 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2023-11-23 21:12:43,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:43,392 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2023-11-23 21:12:43,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:12:43,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 [2023-11-23 21:12:43,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:43,395 INFO L225 Difference]: With dead ends: 29 [2023-11-23 21:12:43,395 INFO L226 Difference]: Without dead ends: 17 [2023-11-23 21:12:43,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:12:43,399 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:43,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 31 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:12:43,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-23 21:12:43,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-23 21:12:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2023-11-23 21:12:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-23 21:12:43,413 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2023-11-23 21:12:43,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:43,414 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-23 21:12:43,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2023-11-23 21:12:43,415 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-23 21:12:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:12:43,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:43,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:43,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:43,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:43,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:43,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1556484116, now seen corresponding path program 1 times [2023-11-23 21:12:43,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:43,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27126461] [2023-11-23 21:12:43,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:43,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:43,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:43,633 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:12:43,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:12:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:43,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:12:43,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:43,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:12:43,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2023-11-23 21:12:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:44,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:44,007 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:44,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27126461] [2023-11-23 21:12:44,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27126461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:44,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:44,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:12:44,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590774790] [2023-11-23 21:12:44,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:44,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:12:44,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:44,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:12:44,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:12:44,011 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2023-11-23 21:12:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:44,190 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2023-11-23 21:12:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:12:44,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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 [2023-11-23 21:12:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:44,191 INFO L225 Difference]: With dead ends: 20 [2023-11-23 21:12:44,191 INFO L226 Difference]: Without dead ends: 17 [2023-11-23 21:12:44,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:12:44,193 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:44,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:12:44,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-23 21:12:44,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-23 21:12:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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) [2023-11-23 21:12:44,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2023-11-23 21:12:44,199 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 13 [2023-11-23 21:12:44,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:44,199 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2023-11-23 21:12:44,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2023-11-23 21:12:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2023-11-23 21:12:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:12:44,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:44,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:44,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:44,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:44,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:44,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:44,407 INFO L85 PathProgramCache]: Analyzing trace with hash 248650679, now seen corresponding path program 1 times [2023-11-23 21:12:44,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:44,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710072916] [2023-11-23 21:12:44,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:44,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:44,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:44,410 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:12:44,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:12:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:44,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 21:12:44,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:44,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:12:44,659 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2023-11-23 21:12:44,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2023-11-23 21:12:44,948 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 21:12:44,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 30 [2023-11-23 21:12:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:45,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:45,082 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:45,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710072916] [2023-11-23 21:12:45,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710072916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:45,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:45,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 21:12:45,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517604066] [2023-11-23 21:12:45,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:45,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 21:12:45,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:45,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 21:12:45,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:12:45,085 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2023-11-23 21:12:45,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:45,741 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2023-11-23 21:12:45,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:12:45,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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 16 [2023-11-23 21:12:45,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:45,742 INFO L225 Difference]: With dead ends: 17 [2023-11-23 21:12:45,742 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:12:45,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:12:45,744 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:45,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 30 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:12:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:12:45,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:12:45,745 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) [2023-11-23 21:12:45,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:12:45,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2023-11-23 21:12:45,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:45,746 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:12:45,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2023-11-23 21:12:45,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:12:45,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:12:45,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:12:45,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:45,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:12:45,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:12:46,097 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 41) no Hoare annotation was computed. [2023-11-23 21:12:46,097 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2023-11-23 21:12:46,098 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2023-11-23 21:12:46,098 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 52) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14|) (_ bv0 32)))) (and (= .cse0 (bvand .cse1 (_ bv2147483648 32))) (= |ULTIMATE.start_main_~res~0#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))))) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12| (_ BitVec 32))) (let ((.cse2 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12|) (_ bv0 32))) (.cse3 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14|) (_ bv0 32)))) (and (= .cse2 (bvand .cse3 (_ bv2147483648 32))) (= (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)) |ULTIMATE.start_trunc_float_#res#1|) (= (_ +zero 8 24) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) |ULTIMATE.start_main_#t~short10#1| (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12| (_ BitVec 32))) (let ((.cse4 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12|) (_ bv0 32))) (.cse5 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14|) (_ bv0 32)))) (and (= .cse4 (bvand .cse5 (_ bv2147483648 32))) (= (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4)) |ULTIMATE.start___signbit_float_~x#1|) (= (_ +zero 8 24) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))))) [2023-11-23 21:12:46,099 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2023-11-23 21:12:46,099 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 57 74) no Hoare annotation was computed. [2023-11-23 21:12:46,099 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-23 21:12:46,099 INFO L899 garLoopResultBuilder]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2023-11-23 21:12:46,099 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2023-11-23 21:12:46,099 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 37) no Hoare annotation was computed. [2023-11-23 21:12:46,100 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 69) no Hoare annotation was computed. [2023-11-23 21:12:46,100 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2023-11-23 21:12:46,101 INFO L895 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24)) [2023-11-23 21:12:46,101 INFO L899 garLoopResultBuilder]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2023-11-23 21:12:46,101 INFO L899 garLoopResultBuilder]: For program point trunc_float_returnLabel#1(lines 14 43) no Hoare annotation was computed. [2023-11-23 21:12:46,101 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:12:46,101 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:12:46,101 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2023-11-23 21:12:46,102 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: (and (exists ((v_subst_1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1)) (_ +zero 8 24)) (= (bvashr (bvand v_subst_1 (_ bv2139095040 32)) (_ bv23 32)) (bvadd |ULTIMATE.start_trunc_float_~exponent_less_127~0#1| (_ bv127 32))))) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= |ULTIMATE.start_trunc_float_~signbit~0#1| (bvand .cse0 (_ bv2147483648 32))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24))))) (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= .cse1 |ULTIMATE.start_trunc_float_~w~0#1|) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)))))) [2023-11-23 21:12:46,102 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2023-11-23 21:12:46,102 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-11-23 21:12:46,102 INFO L899 garLoopResultBuilder]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2023-11-23 21:12:46,107 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 21:12:46,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:12:46,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12 : bv32 :: (#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32], 2147483648bv32) && ~res~0 == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][22:0])) && ~Pluszero~32() == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][22:0])) could not be translated [2023-11-23 21:12:46,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12 : bv32 :: (#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][22:0]) == #res) && ~Pluszero~32() == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][22:0])) could not be translated [2023-11-23 21:12:46,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated [2023-11-23 21:12:46,134 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12 : bv32 :: (#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][22:0]) == ~x) && ~Pluszero~32() == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][22:0])) could not be translated [2023-11-23 21:12:46,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) == ~Pluszero~32() && ~bvashr~32(~bvand~32(v_subst_1, 2139095040bv32), 23bv32) == ~bvadd~32(~exponent_less_127~0, 127bv32)) could not be translated [2023-11-23 21:12:46,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: ~signbit~0 == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated [2023-11-23 21:12:46,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-23 21:12:46,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32] == ~w~0 && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated [2023-11-23 21:12:46,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-23 21:12:46,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:12:46 BoogieIcfgContainer [2023-11-23 21:12:46,139 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:12:46,139 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:12:46,140 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:12:46,140 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:12:46,140 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:42" (3/4) ... [2023-11-23 21:12:46,143 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:12:46,152 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-23 21:12:46,153 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 21:12:46,153 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:12:46,153 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:12:46,256 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:12:46,257 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:12:46,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:12:46,258 INFO L158 Benchmark]: Toolchain (without parser) took 5191.49ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.5MB in the beginning and 60.0MB in the end (delta: -10.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2023-11-23 21:12:46,258 INFO L158 Benchmark]: CDTParser took 3.36ms. Allocated memory is still 56.6MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:46,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.44ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 37.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:12:46,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.30ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 35.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:46,259 INFO L158 Benchmark]: Boogie Preprocessor took 85.43ms. Allocated memory is still 73.4MB. Free memory was 35.9MB in the beginning and 52.1MB in the end (delta: -16.2MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-11-23 21:12:46,260 INFO L158 Benchmark]: RCFGBuilder took 607.63ms. Allocated memory is still 73.4MB. Free memory was 51.9MB in the beginning and 38.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:12:46,260 INFO L158 Benchmark]: TraceAbstraction took 4025.48ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 37.5MB in the beginning and 65.0MB in the end (delta: -27.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-11-23 21:12:46,261 INFO L158 Benchmark]: Witness Printer took 117.69ms. Allocated memory is still 88.1MB. Free memory was 65.0MB in the beginning and 60.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:12:46,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.36ms. Allocated memory is still 56.6MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.44ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 37.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.30ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 35.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.43ms. Allocated memory is still 73.4MB. Free memory was 35.9MB in the beginning and 52.1MB in the end (delta: -16.2MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * RCFGBuilder took 607.63ms. Allocated memory is still 73.4MB. Free memory was 51.9MB in the beginning and 38.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4025.48ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 37.5MB in the beginning and 65.0MB in the end (delta: -27.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Witness Printer took 117.69ms. Allocated memory is still 88.1MB. Free memory was 65.0MB in the beginning and 60.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12 : bv32 :: (#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32], 2147483648bv32) && ~res~0 == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][22:0])) && ~Pluszero~32() == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12 : bv32 :: (#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][22:0]) == #res) && ~Pluszero~32() == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12 : bv32 :: (#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32] == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_12][0bv32][22:0]) == ~x) && ~Pluszero~32() == ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_14][0bv32][22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) == ~Pluszero~32() && ~bvashr~32(~bvand~32(v_subst_1, 2139095040bv32), 23bv32) == ~bvadd~32(~exponent_less_127~0, 127bv32)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: ~signbit~0 == ~bvand~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32], 2147483648bv32) && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32 :: #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32] == ~w~0 && ~fp~32(#memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~32()) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 * 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: 69]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 46 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 7 NumberOfFragments, 263 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 131 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 18 QuantifiedInterpolants, 735 SizeOfPredicates, 28 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 50 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: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-23 21:12:46,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f9b021-1508-41a5-973c-c12c571f6885/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE