./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:40:05,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:40:05,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:40:05,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:40:05,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:40:05,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:40:05,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:40:05,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:40:05,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:40:05,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:40:05,945 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:40:05,946 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:40:05,946 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:40:05,947 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:40:05,947 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:40:05,948 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:40:05,948 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:40:05,949 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:40:05,949 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:40:05,950 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:40:05,950 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:40:05,952 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:40:05,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:40:05,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:40:05,953 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:40:05,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:40:05,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:40:05,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:40:05,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:40:05,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:40:05,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:40:05,956 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:40:05,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:40:05,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:40:05,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:40:05,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:40:05,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:40:05,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:40:05,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:40:05,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:40:05,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:40:05,958 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:40:05,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:40:05,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:40:05,959 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:40:05,959 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:40:05,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:40:05,960 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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b [2023-12-02 18:40:06,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:40:06,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:40:06,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:40:06,209 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:40:06,209 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:40:06,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2023-12-02 18:40:08,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:40:09,077 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:40:09,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2023-12-02 18:40:09,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data/867662dba/a942e36acbc349eb801d25c1d07e3018/FLAGde5be06d9 [2023-12-02 18:40:09,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data/867662dba/a942e36acbc349eb801d25c1d07e3018 [2023-12-02 18:40:09,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:40:09,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:40:09,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:40:09,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:40:09,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:40:09,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82a99db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09, skipping insertion in model container [2023-12-02 18:40:09,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:40:09,279 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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2023-12-02 18:40:09,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:40:09,291 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:40:09,313 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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2023-12-02 18:40:09,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:40:09,328 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:40:09,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09 WrapperNode [2023-12-02 18:40:09,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:40:09,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:40:09,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:40:09,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:40:09,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,367 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 121 [2023-12-02 18:40:09,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:40:09,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:40:09,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:40:09,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:40:09,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:40:09,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:40:09,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:40:09,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:40:09,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (1/1) ... [2023-12-02 18:40:09,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:40:09,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:40:09,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:40:09,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:40:09,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:40:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:40:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:40:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 18:40:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:40:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 18:40:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:40:09,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:40:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:40:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:40:09,548 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:40:09,550 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:40:09,761 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:40:09,884 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:40:09,884 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 18:40:09,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:09 BoogieIcfgContainer [2023-12-02 18:40:09,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:40:09,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:40:09,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:40:09,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:40:09,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:40:09" (1/3) ... [2023-12-02 18:40:09,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec30064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:09, skipping insertion in model container [2023-12-02 18:40:09,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:09" (2/3) ... [2023-12-02 18:40:09,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec30064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:09, skipping insertion in model container [2023-12-02 18:40:09,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:09" (3/3) ... [2023-12-02 18:40:09,896 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2023-12-02 18:40:09,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:40:09,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:40:09,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:40:09,958 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;@c3b2f43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:40:09,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:40:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 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 18:40:09,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 18:40:09,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:09,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:09,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:09,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:09,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1147648508, now seen corresponding path program 1 times [2023-12-02 18:40:09,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:40:09,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533738242] [2023-12-02 18:40:09,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:09,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:40:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:40:10,122 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 18:40:10,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:40:10,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533738242] [2023-12-02 18:40:10,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533738242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:40:10,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:40:10,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:40:10,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015012200] [2023-12-02 18:40:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:40:10,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:40:10,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:40:10,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:40:10,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:40:10,161 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:10,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:40:10,194 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2023-12-02 18:40:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:40:10,197 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 18:40:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:40:10,204 INFO L225 Difference]: With dead ends: 39 [2023-12-02 18:40:10,205 INFO L226 Difference]: Without dead ends: 18 [2023-12-02 18:40:10,207 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 18:40:10,211 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:40:10,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:40:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-02 18:40:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-12-02 18:40:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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 18:40:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-12-02 18:40:10,245 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2023-12-02 18:40:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:40:10,246 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-12-02 18:40:10,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-12-02 18:40:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 18:40:10,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:10,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:10,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:40:10,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:10,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1999230845, now seen corresponding path program 1 times [2023-12-02 18:40:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:40:10,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988591988] [2023-12-02 18:40:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:40:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:40:10,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:40:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:40:10,349 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:40:10,349 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:40:10,351 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:40:10,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:40:10,354 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 18:40:10,357 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:40:10,368 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-12-02 18:40:10,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:40:10 BoogieIcfgContainer [2023-12-02 18:40:10,375 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:40:10,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:40:10,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:40:10,375 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:40:10,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:09" (3/4) ... [2023-12-02 18:40:10,378 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:40:10,379 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:40:10,380 INFO L158 Benchmark]: Toolchain (without parser) took 1282.38ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 83.0MB in the beginning and 88.5MB in the end (delta: -5.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2023-12-02 18:40:10,380 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:40:10,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.06ms. Allocated memory is still 132.1MB. Free memory was 83.0MB in the beginning and 71.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 18:40:10,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.50ms. Allocated memory is still 132.1MB. Free memory was 71.7MB in the beginning and 69.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:40:10,382 INFO L158 Benchmark]: Boogie Preprocessor took 29.18ms. Allocated memory is still 132.1MB. Free memory was 69.7MB in the beginning and 68.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:40:10,383 INFO L158 Benchmark]: RCFGBuilder took 488.35ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 68.4MB in the beginning and 117.3MB in the end (delta: -48.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-12-02 18:40:10,383 INFO L158 Benchmark]: TraceAbstraction took 485.59ms. Allocated memory is still 163.6MB. Free memory was 116.5MB in the beginning and 88.5MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-02 18:40:10,384 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 163.6MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:40:10,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.06ms. Allocated memory is still 132.1MB. Free memory was 83.0MB in the beginning and 71.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.50ms. Allocated memory is still 132.1MB. Free memory was 71.7MB in the beginning and 69.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.18ms. Allocated memory is still 132.1MB. Free memory was 69.7MB in the beginning and 68.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 488.35ms. Allocated memory was 132.1MB in the beginning and 163.6MB in the end (delta: 31.5MB). Free memory was 68.4MB in the beginning and 117.3MB in the end (delta: -48.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * TraceAbstraction took 485.59ms. Allocated memory is still 163.6MB. Free memory was 116.5MB in the beginning and 88.5MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 163.6MB. Free memory is still 88.5MB. 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~short13 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: 82]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L77] float x = -0.0f; [L78] CALL, EXPR floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000008, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000008] [L19] ieee_float_shape_type gf_u; [L20] EXPR gf_u.value = (x) [L21] EXPR gf_u.word [L21] EXPR (i0) = gf_u.word [L18-L22] { ieee_float_shape_type gf_u; gf_u.value = (x); (i0) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000008, huge_floor=1000000000000000000000000000000, i0=2147483647, x=1000000000000000000000000000008] [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000008, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000008] [L25] COND FALSE !(j0 < 23) [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [\old(x)=1000000000000000000000000000008, \result=1000000000000000000000000000008, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000008] [L78] RET, EXPR floor_float(x) [L78] float res = floor_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000008, x=1000000000000000000000000000008] [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000008, x=1000000000000000000000000000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 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, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 7 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=20occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 18:40:10,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:40:12,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:40:12,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 18:40:12,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:40:12,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:40:12,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:40:12,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:40:12,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:40:12,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:40:12,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:40:12,441 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:40:12,442 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:40:12,442 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:40:12,443 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:40:12,444 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:40:12,444 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:40:12,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:40:12,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:40:12,447 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:40:12,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:40:12,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:40:12,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:40:12,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:40:12,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:40:12,449 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:40:12,449 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:40:12,450 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:40:12,450 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:40:12,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:40:12,451 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:40:12,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:40:12,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:40:12,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:40:12,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:40:12,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:40:12,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:40:12,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:40:12,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:40:12,454 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:40:12,454 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:40:12,454 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:40:12,454 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:40:12,455 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:40:12,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:40:12,455 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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe40b084b828df43825fca15d2dd06822fb39893b54cde36c5f06a988fda4d8b [2023-12-02 18:40:12,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:40:12,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:40:12,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:40:12,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:40:12,748 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:40:12,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2023-12-02 18:40:15,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:40:15,720 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:40:15,721 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c [2023-12-02 18:40:15,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data/8dba7e47c/dda0c0e3b42347f38179e6d589a8a14e/FLAG35c3f0819 [2023-12-02 18:40:15,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/data/8dba7e47c/dda0c0e3b42347f38179e6d589a8a14e [2023-12-02 18:40:15,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:40:15,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:40:15,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:40:15,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:40:15,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:40:15,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:15,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcf4880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15, skipping insertion in model container [2023-12-02 18:40:15,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:15,772 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:40:15,916 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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2023-12-02 18:40:15,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:40:15,934 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:40:15,957 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_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/sv-benchmarks/c/float-newlib/float_req_bl_1052c.c[1741,1754] [2023-12-02 18:40:15,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:40:15,972 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:40:15,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15 WrapperNode [2023-12-02 18:40:15,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:40:15,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:40:15,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:40:15,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:40:15,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:15,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,010 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2023-12-02 18:40:16,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:40:16,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:40:16,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:40:16,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:40:16,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:40:16,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:40:16,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:40:16,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:40:16,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (1/1) ... [2023-12-02 18:40:16,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:40:16,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:40:16,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:40:16,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:40:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:40:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:40:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:40:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 18:40:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 18:40:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:40:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:40:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 18:40:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 18:40:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:40:16,205 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:40:16,207 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:40:16,682 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:40:16,708 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:40:16,708 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 18:40:16,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:16 BoogieIcfgContainer [2023-12-02 18:40:16,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:40:16,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:40:16,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:40:16,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:40:16,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:40:15" (1/3) ... [2023-12-02 18:40:16,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750d6771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:16, skipping insertion in model container [2023-12-02 18:40:16,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:15" (2/3) ... [2023-12-02 18:40:16,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750d6771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:16, skipping insertion in model container [2023-12-02 18:40:16,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:16" (3/3) ... [2023-12-02 18:40:16,718 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c.c [2023-12-02 18:40:16,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:40:16,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:40:16,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:40:16,807 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;@54676129, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:40:16,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:40:16,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.72) internal successors, (43), 26 states have internal predecessors, (43), 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 18:40:16,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 18:40:16,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:16,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:16,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:16,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:16,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1673305909, now seen corresponding path program 1 times [2023-12-02 18:40:16,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:40:16,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714113790] [2023-12-02 18:40:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:16,837 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 18:40:16,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:40:16,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:16,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:40:16,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:40:16,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:40:16,944 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 18:40:16,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:40:16,945 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:40:16,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714113790] [2023-12-02 18:40:16,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714113790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:40:16,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:40:16,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:40:16,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127831139] [2023-12-02 18:40:16,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:40:16,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:40:16,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:40:16,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:40:16,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:40:16,983 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.72) internal successors, (43), 26 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:40:17,010 INFO L93 Difference]: Finished difference Result 53 states and 85 transitions. [2023-12-02 18:40:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:40:17,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 18:40:17,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:40:17,018 INFO L225 Difference]: With dead ends: 53 [2023-12-02 18:40:17,018 INFO L226 Difference]: Without dead ends: 25 [2023-12-02 18:40:17,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:40:17,024 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:40:17,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:40:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-02 18:40:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-12-02 18:40:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2023-12-02 18:40:17,051 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 9 [2023-12-02 18:40:17,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:40:17,051 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2023-12-02 18:40:17,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-12-02 18:40:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 18:40:17,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:17,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:17,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:17,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:17,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:17,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2130271498, now seen corresponding path program 1 times [2023-12-02 18:40:17,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:40:17,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107444025] [2023-12-02 18:40:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:17,258 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 18:40:17,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:40:17,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:17,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:40:17,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:40:17,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:40:17,475 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 18:40:17,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:40:17,476 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:40:17,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107444025] [2023-12-02 18:40:17,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107444025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:40:17,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:40:17,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:40:17,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460392895] [2023-12-02 18:40:17,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:40:17,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:40:17,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:40:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:40:17,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:40:17,479 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:40:17,660 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2023-12-02 18:40:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:40:17,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-02 18:40:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:40:17,662 INFO L225 Difference]: With dead ends: 40 [2023-12-02 18:40:17,662 INFO L226 Difference]: Without dead ends: 24 [2023-12-02 18:40:17,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:40:17,663 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:40:17,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 33 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:40:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-02 18:40:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2023-12-02 18:40:17,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-12-02 18:40:17,669 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2023-12-02 18:40:17,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:40:17,669 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-12-02 18:40:17,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-12-02 18:40:17,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 18:40:17,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:17,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:17,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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)] Forceful destruction successful, exit code 0 [2023-12-02 18:40:17,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:17,874 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:17,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash -441447783, now seen corresponding path program 1 times [2023-12-02 18:40:17,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:40:17,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831083302] [2023-12-02 18:40:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:17,875 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 18:40:17,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:40:17,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:17,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:40:17,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 18:40:17,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:40:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:40:18,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:40:18,082 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:40:18,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831083302] [2023-12-02 18:40:18,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831083302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:40:18,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:40:18,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:40:18,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320032408] [2023-12-02 18:40:18,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:40:18,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:40:18,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:40:18,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:40:18,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:40:18,085 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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 18:40:18,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:40:18,135 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-12-02 18:40:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:40:18,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2023-12-02 18:40:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:40:18,136 INFO L225 Difference]: With dead ends: 31 [2023-12-02 18:40:18,136 INFO L226 Difference]: Without dead ends: 20 [2023-12-02 18:40:18,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:40:18,138 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:40:18,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:40:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-02 18:40:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-02 18:40:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 18:40:18,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-12-02 18:40:18,145 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2023-12-02 18:40:18,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:40:18,145 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-12-02 18:40:18,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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 18:40:18,145 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-12-02 18:40:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 18:40:18,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:18,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:18,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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)] Ended with exit code 0 [2023-12-02 18:40:18,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:18,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:18,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:18,351 INFO L85 PathProgramCache]: Analyzing trace with hash 454069379, now seen corresponding path program 1 times [2023-12-02 18:40:18,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:40:18,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510755681] [2023-12-02 18:40:18,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:18,352 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 18:40:18,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:40:18,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:18,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 (5)] Waiting until timeout for monitored process [2023-12-02 18:40:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:40:18,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 18:40:18,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:40:18,562 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 18:40:18,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:40:18,563 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:40:18,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510755681] [2023-12-02 18:40:18,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510755681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:40:18,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:40:18,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:40:18,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691565288] [2023-12-02 18:40:18,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:40:18,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:40:18,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:40:18,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:40:18,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:40:18,566 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:40:18,669 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-12-02 18:40:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:40:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 18:40:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:40:18,671 INFO L225 Difference]: With dead ends: 31 [2023-12-02 18:40:18,671 INFO L226 Difference]: Without dead ends: 20 [2023-12-02 18:40:18,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:40:18,673 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 23 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:40:18,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 30 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:40:18,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-02 18:40:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-02 18:40:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 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 18:40:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-12-02 18:40:18,678 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 16 [2023-12-02 18:40:18,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:40:18,679 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-12-02 18:40:18,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-12-02 18:40:18,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 18:40:18,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:18,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:18,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 (5)] Ended with exit code 0 [2023-12-02 18:40:18,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:18,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:18,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash -355277247, now seen corresponding path program 1 times [2023-12-02 18:40:18,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:40:18,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325949917] [2023-12-02 18:40:18,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:18,882 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 18:40:18,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:40:18,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:18,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 (6)] Waiting until timeout for monitored process [2023-12-02 18:40:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:40:18,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 18:40:18,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:40:19,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 18:40:19,105 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 44 treesize of output 20 [2023-12-02 18:40:19,144 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 18:40:19,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:40:19,145 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:40:19,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325949917] [2023-12-02 18:40:19,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325949917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:40:19,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:40:19,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:40:19,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691299645] [2023-12-02 18:40:19,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:40:19,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:40:19,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:40:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:40:19,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:40:19,148 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:40:19,357 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2023-12-02 18:40:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:40:19,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 18:40:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:40:19,358 INFO L225 Difference]: With dead ends: 23 [2023-12-02 18:40:19,359 INFO L226 Difference]: Without dead ends: 20 [2023-12-02 18:40:19,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:40:19,360 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 21 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:40:19,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:40:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-12-02 18:40:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-12-02 18:40:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 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 18:40:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2023-12-02 18:40:19,366 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 16 [2023-12-02 18:40:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:40:19,366 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2023-12-02 18:40:19,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:40:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2023-12-02 18:40:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 18:40:19,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:40:19,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:40:19,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 (6)] Ended with exit code 0 [2023-12-02 18:40:19,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:19,573 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:40:19,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:40:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1767747648, now seen corresponding path program 1 times [2023-12-02 18:40:19,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:40:19,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50854150] [2023-12-02 18:40:19,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:40:19,574 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 18:40:19,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:40:19,575 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:19,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 (7)] Waiting until timeout for monitored process [2023-12-02 18:40:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:40:19,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 18:40:19,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:40:19,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 18:40:19,846 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 18:40:19,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2023-12-02 18:40:20,072 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 18:40:20,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 29 [2023-12-02 18:40:20,172 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 18:40:20,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:40:20,172 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:40:20,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50854150] [2023-12-02 18:40:20,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50854150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:40:20,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:40:20,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 18:40:20,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827289329] [2023-12-02 18:40:20,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:40:20,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 18:40:20,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:40:20,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 18:40:20,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-02 18:40:20,174 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 18:40:20,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:40:20,720 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2023-12-02 18:40:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:40:20,721 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 19 [2023-12-02 18:40:20,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:40:20,721 INFO L225 Difference]: With dead ends: 20 [2023-12-02 18:40:20,721 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 18:40:20,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-12-02 18:40:20,722 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 30 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:40:20,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 33 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 18:40:20,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 18:40:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 18:40:20,724 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 18:40:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 18:40:20,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2023-12-02 18:40:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:40:20,725 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 18:40:20,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 18:40:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 18:40:20,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 18:40:20,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:40:20,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 (7)] Ended with exit code 0 [2023-12-02 18:40:20,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 18:40:20,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 18:40:21,117 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2023-12-02 18:40:21,117 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-02 18:40:21,117 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2023-12-02 18:40:21,117 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 70 87) no Hoare annotation was computed. [2023-12-02 18:40:21,117 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2023-12-02 18:40:21,117 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 32) no Hoare annotation was computed. [2023-12-02 18:40:21,117 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2023-12-02 18:40:21,118 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24)))) (and (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14| (_ BitVec 32)) (|v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17| (_ BitVec 32))) (let ((.cse2 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start___signbit_float_~x#1|) (= .cse1 (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (= .cse2 .cse0)))) (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14| (_ BitVec 32)) (|v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17| (_ BitVec 32))) (let ((.cse4 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17|) (_ bv0 32))) (.cse3 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14|) (_ bv0 32)))) (and (= |ULTIMATE.start_main_~res~0#1| (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) (= .cse1 (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))) (= .cse4 .cse3)))) |ULTIMATE.start_main_#t~short9#1| (= |ULTIMATE.start_floor_float_#res#1| .cse1))) [2023-12-02 18:40:21,118 INFO L899 garLoopResultBuilder]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2023-12-02 18:40:21,119 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2023-12-02 18:40:21,119 INFO L899 garLoopResultBuilder]: For program point floor_float_returnLabel#1(lines 15 56) no Hoare annotation was computed. [2023-12-02 18:40:21,119 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2023-12-02 18:40:21,119 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2023-12-02 18:40:21,119 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 18:40:21,120 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 49) no Hoare annotation was computed. [2023-12-02 18:40:21,120 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2023-12-02 18:40:21,120 INFO L895 garLoopResultBuilder]: At program point L50-1(lines 50 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((v_subst_2 (_ BitVec 32))) (and (= |ULTIMATE.start_floor_float_~ix~0#1| (bvand (_ bv2147483647 32) v_subst_2)) (= .cse0 (fp ((_ extract 31 31) v_subst_2) ((_ extract 30 23) v_subst_2) ((_ extract 22 0) v_subst_2))))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14| (_ BitVec 32)) (|v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17|) (_ bv0 32))) (.cse2 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14|) (_ bv0 32)))) (and (= .cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= .cse1 .cse2) (= |ULTIMATE.start_floor_float_~x#1| (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_subst_1 (_ BitVec 32))) (and (= .cse0 (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1))) (= (bvadd |ULTIMATE.start_floor_float_~j0~0#1| (_ bv127 32)) (bvlshr (bvand (_ bv2147483647 32) v_subst_1) (_ bv23 32))))) (exists ((|v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17| (_ BitVec 32))) (let ((.cse3 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17|) (_ bv0 32)))) (and (= .cse0 (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) (= .cse3 |ULTIMATE.start_floor_float_~i0~0#1|)))))) [2023-12-02 18:40:21,121 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2023-12-02 18:40:21,121 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 18:40:21,121 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2023-12-02 18:40:21,121 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2023-12-02 18:40:21,121 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 43) no Hoare annotation was computed. [2023-12-02 18:40:21,121 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2023-12-02 18:40:21,121 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= |ULTIMATE.start_floor_float_~x#1| (fp.neg (_ +zero 8 24))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= currentRoundingMode roundNearestTiesToEven)) [2023-12-02 18:40:21,122 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2023-12-02 18:40:21,122 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2023-12-02 18:40:21,122 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2023-12-02 18:40:21,125 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-02 18:40:21,127 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:40:21,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-12-02 18:40:21,139 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 18:40:21,142 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_2 : bv32 :: ~ix~0 == ~bvand~32(2147483647bv32, v_subst_2) && ~fp.neg~32(~Pluszero~32()) == ~fp~32(v_subst_2[31:31], v_subst_2[30:23], v_subst_2[22:0])) could not be translated [2023-12-02 18:40:21,142 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0]) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32]) && ~x == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][22:0])) could not be translated [2023-12-02 18:40:21,142 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-12-02 18:40:21,142 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp.neg~32(~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) && ~bvadd~32(~j0~0, 127bv32) == ~bvlshr~32(~bvand~32(2147483647bv32, v_subst_1), 23bv32)) could not be translated [2023-12-02 18:40:21,143 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: ~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0]) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == ~i0~0) could not be translated [2023-12-02 18:40:21,144 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][22:0]) == ~x && ~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32]) could not be translated [2023-12-02 18:40:21,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (~res~0 == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][22:0]) && ~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32]) could not be translated [2023-12-02 18:40:21,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated [2023-12-02 18:40:21,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-12-02 18:40:21,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:40:21 BoogieIcfgContainer [2023-12-02 18:40:21,146 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:40:21,146 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:40:21,146 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:40:21,147 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:40:21,147 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:16" (3/4) ... [2023-12-02 18:40:21,149 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 18:40:21,158 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-12-02 18:40:21,158 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 18:40:21,158 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 18:40:21,159 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 18:40:21,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 18:40:21,248 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 18:40:21,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:40:21,249 INFO L158 Benchmark]: Toolchain (without parser) took 5503.56ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 91.9MB in the beginning and 106.1MB in the end (delta: -14.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-12-02 18:40:21,249 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:40:21,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.19ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 80.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 18:40:21,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.35ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 78.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:40:21,250 INFO L158 Benchmark]: Boogie Preprocessor took 35.21ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:40:21,251 INFO L158 Benchmark]: RCFGBuilder took 660.80ms. Allocated memory is still 115.3MB. Free memory was 76.4MB in the beginning and 61.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 18:40:21,251 INFO L158 Benchmark]: TraceAbstraction took 4434.11ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 61.1MB in the beginning and 110.3MB in the end (delta: -49.2MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-12-02 18:40:21,252 INFO L158 Benchmark]: Witness Printer took 101.55ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 106.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 18:40:21,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.19ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 80.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.35ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 78.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.21ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 76.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.80ms. Allocated memory is still 115.3MB. Free memory was 76.4MB in the beginning and 61.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4434.11ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 61.1MB in the beginning and 110.3MB in the end (delta: -49.2MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Witness Printer took 101.55ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 106.1MB 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: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_2 : bv32 :: ~ix~0 == ~bvand~32(2147483647bv32, v_subst_2) && ~fp.neg~32(~Pluszero~32()) == ~fp~32(v_subst_2[31:31], v_subst_2[30:23], v_subst_2[22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0]) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32]) && ~x == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][22:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp.neg~32(~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) && ~bvadd~32(~j0~0, 127bv32) == ~bvlshr~32(~bvand~32(2147483647bv32, v_subst_1), 23bv32)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: ~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0]) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == ~i0~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][22:0]) == ~x && ~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14 : bv32, v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17 : bv32 :: (~res~0 == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32][22:0]) && ~fp.neg~32(~Pluszero~32()) == ~fp~32(#memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][31:31], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][30:23], #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32][22:0])) && #memory_int[v_ULTIMATE.start_floor_float_~#gf_u~0#1.base_17][0bv32] == #memory_int[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_14][0bv32]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: 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, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 180 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 87 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 32, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 269 HoareAnnotationTreeSize, 3 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 123 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 29 QuantifiedInterpolants, 1126 SizeOfPredicates, 38 NumberOfNonLiveVariables, 305 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 18]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-02 18:40:21,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b7938a-df4d-4a79-a2ed-15070be3ccbc/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 Writing output log to file Ultimate.log Result: TRUE