./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh --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 4125067731c9461f504f645ef137a32a099671890c2e50b3f9cd5d26dd48e367 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:58:38,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:58:38,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:58:38,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:58:38,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:58:38,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:58:38,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:58:38,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:58:38,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:58:38,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:58:38,942 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:58:38,942 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:58:38,943 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:58:38,943 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:58:38,944 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:58:38,944 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:58:38,945 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:58:38,945 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:58:38,946 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:58:38,946 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:58:38,947 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:58:38,948 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:58:38,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:58:38,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:58:38,949 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:58:38,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:58:38,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:58:38,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:58:38,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:58:38,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:58:38,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:58:38,952 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:58:38,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:58:38,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:58:38,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:58:38,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:58:38,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:58:38,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:58:38,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:58:38,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:58:38,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:58:38,955 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:58:38,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:58:38,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:58:38,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:58:38,956 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:58:38,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:58:38,956 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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4125067731c9461f504f645ef137a32a099671890c2e50b3f9cd5d26dd48e367 [2023-12-02 14:58:39,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:58:39,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:58:39,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:58:39,203 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:58:39,204 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:58:39,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2023-12-02 14:58:42,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:58:42,184 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:58:42,185 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2023-12-02 14:58:42,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data/6b5bc0ad3/e36efdca9544478889d2840a32dccbbc/FLAG1d2d66723 [2023-12-02 14:58:42,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data/6b5bc0ad3/e36efdca9544478889d2840a32dccbbc [2023-12-02 14:58:42,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:58:42,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:58:42,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:42,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:58:42,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:58:42,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4049d4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42, skipping insertion in model container [2023-12-02 14:58:42,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,244 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:58:42,410 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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c[1210,1223] [2023-12-02 14:58:42,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:42,425 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:58:42,446 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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c[1210,1223] [2023-12-02 14:58:42,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:42,464 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:58:42,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42 WrapperNode [2023-12-02 14:58:42,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:42,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:42,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:58:42,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:58:42,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,501 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-12-02 14:58:42,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:42,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:58:42,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:58:42,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:58:42,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:58:42,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:58:42,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:58:42,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:58:42,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (1/1) ... [2023-12-02 14:58:42,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:58:42,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:58:42,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:58:42,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:58:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:58:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:58:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:58:42,669 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:58:42,671 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:58:42,795 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:58:42,817 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:58:42,817 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 14:58:42,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:42 BoogieIcfgContainer [2023-12-02 14:58:42,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:58:42,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:58:42,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:58:42,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:58:42,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:58:42" (1/3) ... [2023-12-02 14:58:42,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e92c9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:42, skipping insertion in model container [2023-12-02 14:58:42,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:42" (2/3) ... [2023-12-02 14:58:42,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e92c9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:42, skipping insertion in model container [2023-12-02 14:58:42,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:42" (3/3) ... [2023-12-02 14:58:42,827 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011a.c [2023-12-02 14:58:42,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:58:42,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:58:42,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:58:42,886 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;@7edceeb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:58:42,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:58:42,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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) [2023-12-02 14:58:42,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 14:58:42,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:42,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:42,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:58:42,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:42,902 INFO L85 PathProgramCache]: Analyzing trace with hash -445275560, now seen corresponding path program 1 times [2023-12-02 14:58:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204284458] [2023-12-02 14:58:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:58:43,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:43,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204284458] [2023-12-02 14:58:43,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204284458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:43,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:43,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:58:43,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864367815] [2023-12-02 14:58:43,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:43,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:58:43,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:43,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:58:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:58:43,084 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:58:43,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:43,110 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2023-12-02 14:58:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:58:43,112 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 14:58:43,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:43,120 INFO L225 Difference]: With dead ends: 29 [2023-12-02 14:58:43,120 INFO L226 Difference]: Without dead ends: 13 [2023-12-02 14:58:43,123 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 [2023-12-02 14:58:43,127 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:43,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:58:43,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-02 14:58:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-12-02 14:58:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2023-12-02 14:58:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-12-02 14:58:43,159 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-12-02 14:58:43,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:43,159 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-12-02 14:58:43,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:58:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-12-02 14:58:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 14:58:43,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:43,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:43,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:58:43,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:58:43,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:43,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1390444885, now seen corresponding path program 1 times [2023-12-02 14:58:43,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:43,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042179011] [2023-12-02 14:58:43,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:43,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:58:43,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:58:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:58:43,256 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:58:43,256 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:58:43,258 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:58:43,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:58:43,263 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 14:58:43,266 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:58:43,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated [2023-12-02 14:58:43,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:58:43 BoogieIcfgContainer [2023-12-02 14:58:43,290 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:58:43,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:58:43,291 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:58:43,291 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:58:43,291 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:42" (3/4) ... [2023-12-02 14:58:43,294 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:58:43,295 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:58:43,296 INFO L158 Benchmark]: Toolchain (without parser) took 1082.90ms. Allocated memory is still 140.5MB. Free memory was 85.2MB in the beginning and 77.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-12-02 14:58:43,296 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:58:43,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.57ms. Allocated memory is still 140.5MB. Free memory was 85.2MB in the beginning and 74.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 14:58:43,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.29ms. Allocated memory is still 140.5MB. Free memory was 74.3MB in the beginning and 72.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:58:43,298 INFO L158 Benchmark]: Boogie Preprocessor took 27.51ms. Allocated memory is still 140.5MB. Free memory was 72.8MB in the beginning and 71.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:58:43,298 INFO L158 Benchmark]: RCFGBuilder took 287.85ms. Allocated memory is still 140.5MB. Free memory was 71.4MB in the beginning and 104.4MB in the end (delta: -33.0MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-12-02 14:58:43,299 INFO L158 Benchmark]: TraceAbstraction took 469.34ms. Allocated memory is still 140.5MB. Free memory was 103.5MB in the beginning and 77.9MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 14:58:43,299 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 140.5MB. Free memory was 77.9MB in the beginning and 77.6MB in the end (delta: 345.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:58:43,303 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.57ms. Allocated memory is still 140.5MB. Free memory was 85.2MB in the beginning and 74.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.29ms. Allocated memory is still 140.5MB. Free memory was 74.3MB in the beginning and 72.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.51ms. Allocated memory is still 140.5MB. Free memory was 72.8MB in the beginning and 71.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 287.85ms. Allocated memory is still 140.5MB. Free memory was 71.4MB in the beginning and 104.4MB in the end (delta: -33.0MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 469.34ms. Allocated memory is still 140.5MB. Free memory was 103.5MB in the beginning and 77.9MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 140.5MB. Free memory was 77.9MB in the beginning and 77.6MB in the end (delta: 345.7kB). 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~short9 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: 54]: 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 someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L49] double x = 0.0; [L50] CALL, EXPR fabs_double(x) [L28] __uint32_t high; VAL [\old(x)=0, x=0] [L30] ieee_double_shape_type gh_u; [L31] EXPR gh_u.value = (x) [L32] EXPR gh_u.parts.msw [L32] EXPR (high) = gh_u.parts.msw [L29-L33] { ieee_double_shape_type gh_u; gh_u.value = (x); (high) = gh_u.parts.msw; } VAL [\old(x)=0, high=7, x=0] [L35] ieee_double_shape_type sh_u; [L36] EXPR sh_u.value = (x) [L37] EXPR sh_u.parts.msw = (high & 0x7fffffff) [L38] EXPR sh_u.value [L38] EXPR (x) = sh_u.value [L34-L39] { ieee_double_shape_type sh_u; sh_u.value = (x); sh_u.parts.msw = (high & 0x7fffffff); (x) = sh_u.value; } VAL [\old(x)=0, high=7, x=0] [L40] return x; [L50] RET, EXPR fabs_double(x) [L50] double res = fabs_double(x); [L53] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, x=0] [L53] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L54] reach_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 14:58:43,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh --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 4125067731c9461f504f645ef137a32a099671890c2e50b3f9cd5d26dd48e367 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:58:45,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:58:45,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 14:58:45,404 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:58:45,405 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:58:45,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:58:45,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:58:45,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:58:45,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:58:45,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:58:45,432 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:58:45,433 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:58:45,433 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:58:45,434 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:58:45,434 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:58:45,434 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:58:45,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:58:45,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:58:45,436 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:58:45,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:58:45,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:58:45,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:58:45,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:58:45,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:58:45,439 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:58:45,440 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 14:58:45,440 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 14:58:45,441 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:58:45,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:58:45,441 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:58:45,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:58:45,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 14:58:45,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:58:45,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:58:45,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:58:45,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:58:45,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:58:45,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:58:45,445 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 14:58:45,445 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 14:58:45,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:58:45,445 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:58:45,445 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:58:45,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:58:45,446 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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4125067731c9461f504f645ef137a32a099671890c2e50b3f9cd5d26dd48e367 [2023-12-02 14:58:45,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:58:45,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:58:45,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:58:45,793 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:58:45,793 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:58:45,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2023-12-02 14:58:48,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:58:48,796 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:58:48,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c [2023-12-02 14:58:48,805 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data/0f62a1591/842bd7f57166482fa02822325516812b/FLAG9a297ae94 [2023-12-02 14:58:48,822 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/data/0f62a1591/842bd7f57166482fa02822325516812b [2023-12-02 14:58:48,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:58:48,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:58:48,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:48,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:58:48,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:58:48,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:48" (1/1) ... [2023-12-02 14:58:48,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64faad6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:48, skipping insertion in model container [2023-12-02 14:58:48,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:48" (1/1) ... [2023-12-02 14:58:48,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:58:48,990 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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c[1210,1223] [2023-12-02 14:58:48,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:49,006 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:58:49,026 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_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/sv-benchmarks/c/float-newlib/double_req_bl_1011a.c[1210,1223] [2023-12-02 14:58:49,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:49,046 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:58:49,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49 WrapperNode [2023-12-02 14:58:49,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:49,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:49,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:58:49,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:58:49,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,095 INFO L138 Inliner]: procedures = 19, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-12-02 14:58:49,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:49,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:58:49,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:58:49,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:58:49,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:58:49,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:58:49,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:58:49,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:58:49,132 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (1/1) ... [2023-12-02 14:58:49,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:58:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:58:49,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:58:49,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:58:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:58:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-12-02 14:58:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-02 14:58:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 14:58:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:58:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 14:58:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:58:49,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:58:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 14:58:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:58:49,283 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:58:49,285 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:58:49,462 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:58:49,495 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:58:49,495 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 14:58:49,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:49 BoogieIcfgContainer [2023-12-02 14:58:49,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:58:49,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:58:49,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:58:49,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:58:49,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:58:48" (1/3) ... [2023-12-02 14:58:49,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561c166d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:49, skipping insertion in model container [2023-12-02 14:58:49,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:49" (2/3) ... [2023-12-02 14:58:49,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561c166d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:49, skipping insertion in model container [2023-12-02 14:58:49,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:49" (3/3) ... [2023-12-02 14:58:49,506 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011a.c [2023-12-02 14:58:49,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:58:49,522 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:58:49,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:58:49,583 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;@7b861123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:58:49,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:58:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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) [2023-12-02 14:58:49,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 14:58:49,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:49,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:49,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:58:49,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:49,600 INFO L85 PathProgramCache]: Analyzing trace with hash -445275560, now seen corresponding path program 1 times [2023-12-02 14:58:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:58:49,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017059481] [2023-12-02 14:58:49,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:49,612 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 [2023-12-02 14:58:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:58:49,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 14:58:49,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:49,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 14:58:49,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:58:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:58:49,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:58:49,723 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:58:49,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017059481] [2023-12-02 14:58:49,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017059481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:49,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:49,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:58:49,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113865472] [2023-12-02 14:58:49,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:49,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:58:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:58:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:58:49,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:58:49,758 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:58:49,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:49,791 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2023-12-02 14:58:49,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:58:49,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 14:58:49,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:49,800 INFO L225 Difference]: With dead ends: 29 [2023-12-02 14:58:49,800 INFO L226 Difference]: Without dead ends: 13 [2023-12-02 14:58:49,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:58:49,806 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:49,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:58:49,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-02 14:58:49,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-12-02 14:58:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2023-12-02 14:58:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-12-02 14:58:49,832 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-12-02 14:58:49,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:49,833 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-12-02 14:58:49,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:58:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-12-02 14:58:49,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 14:58:49,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:49,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:49,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:50,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:50,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:58:50,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1390444885, now seen corresponding path program 1 times [2023-12-02 14:58:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:58:50,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973196908] [2023-12-02 14:58:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:50,037 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 [2023-12-02 14:58:50,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:58:50,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 14:58:50,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:50,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 14:58:50,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:58:50,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2023-12-02 14:58:50,356 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 45 treesize of output 29 [2023-12-02 14:58:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:58:50,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:58:50,403 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:58:50,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973196908] [2023-12-02 14:58:50,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973196908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:50,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:50,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:50,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762268970] [2023-12-02 14:58:50,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:50,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:58:50,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:58:50,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:58:50,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:58:50,408 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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) [2023-12-02 14:58:50,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:50,484 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2023-12-02 14:58:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:58:50,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 [2023-12-02 14:58:50,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:50,486 INFO L225 Difference]: With dead ends: 16 [2023-12-02 14:58:50,486 INFO L226 Difference]: Without dead ends: 13 [2023-12-02 14:58:50,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:58:50,488 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:50,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:58:50,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-02 14:58:50,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-12-02 14:58:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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) [2023-12-02 14:58:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2023-12-02 14:58:50,492 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 9 [2023-12-02 14:58:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:50,493 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2023-12-02 14:58:50,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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) [2023-12-02 14:58:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2023-12-02 14:58:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 14:58:50,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:50,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:50,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 14:58:50,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:50,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:58:50,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1576215160, now seen corresponding path program 1 times [2023-12-02 14:58:50,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:58:50,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851990440] [2023-12-02 14:58:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:50,697 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 [2023-12-02 14:58:50,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:58:50,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 14:58:50,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:50,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 14:58:50,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:58:50,875 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 14 treesize of output 10 [2023-12-02 14:58:51,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:58:51,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 28 [2023-12-02 14:58:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:58:51,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:58:51,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:58:51,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851990440] [2023-12-02 14:58:51,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851990440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:51,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:51,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 14:58:51,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741618361] [2023-12-02 14:58:51,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:51,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 14:58:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:58:51,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 14:58:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:58:51,280 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-12-02 14:58:51,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:51,719 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2023-12-02 14:58:51,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:58:51,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 12 [2023-12-02 14:58:51,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:51,721 INFO L225 Difference]: With dead ends: 13 [2023-12-02 14:58:51,721 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:58:51,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-12-02 14:58:51,723 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:51,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 15 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:58:51,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:58:51,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:58:51,724 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) [2023-12-02 14:58:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:58:51,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-12-02 14:58:51,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:51,725 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:58:51,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-12-02 14:58:51,725 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:58:51,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:58:51,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:58:51,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:51,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:58:51,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:58:51,991 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2023-12-02 14:58:51,992 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64)) (|v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14| (_ BitVec 32))) (let ((.cse2 (select |#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14|))) (let ((.cse1 (select .cse2 (_ bv4 32)))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|))) (= (let ((.cse0 (concat .cse1 (select .cse2 (_ bv0 32))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start___signbit_double_~x#1|) (= (bvand ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|) (_ bv2147483647 32)) .cse1))))) |ULTIMATE.start_main_#t~short9#1| (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64)) (|v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14| (_ BitVec 32))) (let ((.cse5 (select |#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14|))) (let ((.cse3 (select .cse5 (_ bv4 32)))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|))) (= (bvand ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|) (_ bv2147483647 32)) .cse3) (= |ULTIMATE.start_main_~res~0#1| (let ((.cse4 (concat .cse3 (select .cse5 (_ bv0 32))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))))))) [2023-12-02 14:58:51,992 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2023-12-02 14:58:51,992 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 43 58) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point L53-2(lines 53 56) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L895 garLoopResultBuilder]: At program point L29-2(lines 29 33) the Hoare annotation is: (= (_ +zero 11 53) |ULTIMATE.start_fabs_double_~x#1|) [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:58:51,993 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 39) no Hoare annotation was computed. [2023-12-02 14:58:51,994 INFO L895 garLoopResultBuilder]: At program point L34-1(lines 34 39) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fabs_double_~x#1|) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64)) (|v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14| (_ BitVec 32))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|))) (= (let ((.cse0 (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14|))) (concat (select .cse1 (_ bv4 32)) (select .cse1 (_ bv0 32)))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start_fabs_double_~x#1|))) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|) |ULTIMATE.start_fabs_double_~high~0#1|)))) [2023-12-02 14:58:51,994 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 39) no Hoare annotation was computed. [2023-12-02 14:58:51,996 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 14:58:51,998 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:58:52,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14 : bv32 :: (~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~fp~64((#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[63:63], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[62:52], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[51:0]) == ~x) && ~bvand~32(v_skolemized_q#valueAsBitvector_14[63:32], 2147483647bv32) == #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32]) could not be translated [2023-12-02 14:58:52,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated [2023-12-02 14:58:52,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14 : bv32 :: (~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~bvand~32(v_skolemized_q#valueAsBitvector_14[63:32], 2147483647bv32) == #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32]) && ~res~0 == ~fp~64((#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[63:63], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[62:52], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[51:0])) could not be translated [2023-12-02 14:58:52,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-12-02 14:58:52,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14 : bv32 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~fp~64((#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[63:63], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[62:52], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[51:0]) == ~x) could not be translated [2023-12-02 14:58:52,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_14 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && v_skolemized_q#valueAsBitvector_14[63:32] == ~high~0) could not be translated [2023-12-02 14:58:52,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-12-02 14:58:52,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:58:52 BoogieIcfgContainer [2023-12-02 14:58:52,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:58:52,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:58:52,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:58:52,011 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:58:52,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:49" (3/4) ... [2023-12-02 14:58:52,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:58:52,018 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 14:58:52,019 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 14:58:52,019 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 14:58:52,019 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:58:52,093 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:58:52,093 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:58:52,094 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:58:52,094 INFO L158 Benchmark]: Toolchain (without parser) took 3268.12ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 47.7MB in the beginning and 64.8MB in the end (delta: -17.1MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-12-02 14:58:52,095 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:58:52,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.37ms. Allocated memory is still 75.5MB. Free memory was 47.5MB in the beginning and 36.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 14:58:52,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.79ms. Allocated memory is still 75.5MB. Free memory was 36.0MB in the beginning and 54.5MB in the end (delta: -18.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:58:52,096 INFO L158 Benchmark]: Boogie Preprocessor took 34.25ms. Allocated memory is still 75.5MB. Free memory was 54.5MB in the beginning and 52.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:58:52,096 INFO L158 Benchmark]: RCFGBuilder took 365.34ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 39.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 14:58:52,097 INFO L158 Benchmark]: TraceAbstraction took 2511.16ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 39.1MB in the beginning and 69.0MB in the end (delta: -29.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 14:58:52,097 INFO L158 Benchmark]: Witness Printer took 82.96ms. Allocated memory is still 111.1MB. Free memory was 69.0MB in the beginning and 64.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:58:52,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.37ms. Allocated memory is still 75.5MB. Free memory was 47.5MB in the beginning and 36.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.79ms. Allocated memory is still 75.5MB. Free memory was 36.0MB in the beginning and 54.5MB in the end (delta: -18.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.25ms. Allocated memory is still 75.5MB. Free memory was 54.5MB in the beginning and 52.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 365.34ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 39.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2511.16ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 39.1MB in the beginning and 69.0MB in the end (delta: -29.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 82.96ms. Allocated memory is still 111.1MB. Free memory was 69.0MB in the beginning and 64.8MB in the end (delta: 4.2MB). 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_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14 : bv32 :: (~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~fp~64((#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[63:63], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[62:52], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[51:0]) == ~x) && ~bvand~32(v_skolemized_q#valueAsBitvector_14[63:32], 2147483647bv32) == #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14 : bv32 :: (~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~bvand~32(v_skolemized_q#valueAsBitvector_14[63:32], 2147483647bv32) == #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32]) && ~res~0 == ~fp~64((#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[63:63], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[62:52], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[51:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14 : bv32 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~fp~64((#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[63:63], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[62:52], (#memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][4bv32] ++ #memory_int[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_14][0bv32])[51:0]) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_14 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && v_skolemized_q#valueAsBitvector_14[63:32] == ~high~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 * 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: 54]: 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 20 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 194 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 10 QuantifiedInterpolants, 443 SizeOfPredicates, 18 NumberOfNonLiveVariables, 149 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 19]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-02 14:58:52,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6b98ee-c5e2-4b81-97c5-83621a945e4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE