./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:17,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:17,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:17,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:17,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:17,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:17,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:17,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:17,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:17,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:17,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:17,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:17,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:17,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:17,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:17,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:17,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:17,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:17,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:17,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:17,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:17,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:17,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:17,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:17,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:17,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:17,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:17,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:17,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:17,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:17,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:17,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:17,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:17,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:17,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:17,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:17,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:17,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:17,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:17,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:17,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:17,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:46:17,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:17,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:17,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:17,780 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:17,780 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:17,780 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:17,780 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:46:17,781 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:17,781 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:17,781 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:46:17,781 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:46:17,782 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:17,782 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:46:17,782 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:46:17,782 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:46:17,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:17,783 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:46:17,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:46:17,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:46:17,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:17,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:17,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:17,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:17,785 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:17,785 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:46:17,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:17,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:17,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:17,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:17,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:17,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:17,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:17,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:17,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:17,787 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:46:17,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:46:17,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:17,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:17,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:17,788 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 [2021-11-03 03:46:18,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:18,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:18,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:18,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:18,117 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:18,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-11-03 03:46:18,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/22d5d0f04/582b43ce67794db49e4668ca0ea70fd8/FLAG32077b630 [2021-11-03 03:46:18,674 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:18,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-11-03 03:46:18,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/22d5d0f04/582b43ce67794db49e4668ca0ea70fd8/FLAG32077b630 [2021-11-03 03:46:19,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/22d5d0f04/582b43ce67794db49e4668ca0ea70fd8 [2021-11-03 03:46:19,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:19,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:19,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:19,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:19,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:19,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778ca217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19, skipping insertion in model container [2021-11-03 03:46:19,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:19,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:19,295 WARN L228 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_24be7b40-053b-40bf-8525-2e604aebe257/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-11-03 03:46:19,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:19,312 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:46:19,344 WARN L228 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_24be7b40-053b-40bf-8525-2e604aebe257/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-11-03 03:46:19,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:19,360 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:46:19,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19 WrapperNode [2021-11-03 03:46:19,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:19,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:46:19,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:46:19,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:46:19,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:46:19,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:46:19,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:46:19,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:46:19,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:46:19,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:46:19,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:46:19,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:46:19,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (1/1) ... [2021-11-03 03:46:19,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:19,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:46:19,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:46:19,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:46:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:46:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:46:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:46:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-03 03:46:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-03 03:46:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:46:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:46:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:46:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-03 03:46:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:46:20,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:46:20,127 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-03 03:46:20,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:20 BoogieIcfgContainer [2021-11-03 03:46:20,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:46:20,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:46:20,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:46:20,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:46:20,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:19" (1/3) ... [2021-11-03 03:46:20,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a23cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:20, skipping insertion in model container [2021-11-03 03:46:20,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:19" (2/3) ... [2021-11-03 03:46:20,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a23cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:20, skipping insertion in model container [2021-11-03 03:46:20,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:20" (3/3) ... [2021-11-03 03:46:20,148 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2021-11-03 03:46:20,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:46:20,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:46:20,223 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:46:20,237 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:46:20,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:46:20,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:20,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 03:46:20,280 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:20,280 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:20,281 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:46:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2021166095, now seen corresponding path program 1 times [2021-11-03 03:46:20,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:46:20,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104281143] [2021-11-03 03:46:20,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:20,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:46:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:20,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:46:20,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104281143] [2021-11-03 03:46:20,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104281143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:46:20,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:46:20,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 03:46:20,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007151703] [2021-11-03 03:46:20,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:46:20,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:46:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:46:20,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:46:20,496 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 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) [2021-11-03 03:46:20,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:46:20,516 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2021-11-03 03:46:20,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:46:20,517 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 [2021-11-03 03:46:20,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:46:20,527 INFO L225 Difference]: With dead ends: 67 [2021-11-03 03:46:20,527 INFO L226 Difference]: Without dead ends: 32 [2021-11-03 03:46:20,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:46:20,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-03 03:46:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-03 03:46:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-11-03 03:46:20,568 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2021-11-03 03:46:20,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:46:20,568 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-03 03:46:20,569 INFO L471 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) [2021-11-03 03:46:20,569 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-11-03 03:46:20,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:46:20,570 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:20,570 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:20,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:46:20,571 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:46:20,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:20,572 INFO L85 PathProgramCache]: Analyzing trace with hash 342564116, now seen corresponding path program 1 times [2021-11-03 03:46:20,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:46:20,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431248748] [2021-11-03 03:46:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:20,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:46:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:46:20,764 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 03:46:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:46:20,866 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 03:46:20,866 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 03:46:20,868 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:46:20,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:46:20,874 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-03 03:46:20,878 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:46:20,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:46:20 BoogieIcfgContainer [2021-11-03 03:46:20,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:46:20,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:46:20,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:46:20,907 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:46:20,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:20" (3/4) ... [2021-11-03 03:46:20,911 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 03:46:20,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:46:20,914 INFO L168 Benchmark]: Toolchain (without parser) took 1871.09 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 67.0 MB in the beginning and 108.0 MB in the end (delta: -41.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:46:20,914 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 109.1 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:46:20,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.02 ms. Allocated memory is still 109.1 MB. Free memory was 66.8 MB in the beginning and 81.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:20,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.75 ms. Allocated memory is still 109.1 MB. Free memory was 81.1 MB in the beginning and 79.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:20,917 INFO L168 Benchmark]: Boogie Preprocessor took 36.54 ms. Allocated memory is still 109.1 MB. Free memory was 79.0 MB in the beginning and 77.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:46:20,917 INFO L168 Benchmark]: RCFGBuilder took 687.52 ms. Allocated memory is still 109.1 MB. Free memory was 77.3 MB in the beginning and 59.3 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:20,918 INFO L168 Benchmark]: TraceAbstraction took 768.56 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 58.9 MB in the beginning and 109.1 MB in the end (delta: -50.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:46:20,919 INFO L168 Benchmark]: Witness Printer took 5.03 ms. Allocated memory is still 140.5 MB. Free memory was 109.1 MB in the beginning and 108.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:20,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 109.1 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.02 ms. Allocated memory is still 109.1 MB. Free memory was 66.8 MB in the beginning and 81.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.75 ms. Allocated memory is still 109.1 MB. Free memory was 81.1 MB in the beginning and 79.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.54 ms. Allocated memory is still 109.1 MB. Free memory was 79.0 MB in the beginning and 77.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 687.52 ms. Allocated memory is still 109.1 MB. Free memory was 77.3 MB in the beginning and 59.3 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 768.56 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 58.9 MB in the beginning and 109.1 MB in the end (delta: -50.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.03 ms. Allocated memory is still 140.5 MB. Free memory was 109.1 MB in the beginning and 108.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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: 125]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L119] float x = 1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=34occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 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 [2021-11-03 03:46:20,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:23,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:23,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:23,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:23,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:23,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:23,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:23,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:23,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:23,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:23,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:23,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:23,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:23,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:23,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:23,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:23,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:23,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:23,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:23,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:23,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:23,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:23,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:23,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:23,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:23,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:23,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:23,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:23,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:23,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:23,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:23,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:23,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:23,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:23,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:23,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:23,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:23,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:23,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:23,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:23,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:23,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 03:46:23,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:23,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:23,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:23,592 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:23,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:23,592 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:23,593 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:23,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:23,593 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:23,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:23,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:46:23,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:46:23,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:23,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:23,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:23,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:23,597 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:23,597 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:46:23,597 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:46:23,597 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:46:23,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:23,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:23,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:23,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:23,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:46:23,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:23,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:23,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:23,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:23,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:23,600 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:46:23,600 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:46:23,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:23,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:23,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:23,601 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11d6107924de66a58b91836187b6b12fed7ff2a1cca830501395e849f6954c14 [2021-11-03 03:46:24,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:24,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:24,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:24,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:24,069 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:24,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-11-03 03:46:24,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/93c79aefb/9f20fce37dc04d4fb91ed6b8b2aa1e36/FLAGbdf1f616c [2021-11-03 03:46:24,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:24,676 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-11-03 03:46:24,684 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/93c79aefb/9f20fce37dc04d4fb91ed6b8b2aa1e36/FLAGbdf1f616c [2021-11-03 03:46:25,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/data/93c79aefb/9f20fce37dc04d4fb91ed6b8b2aa1e36 [2021-11-03 03:46:25,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:25,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:25,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:25,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:25,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:25,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d696578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25, skipping insertion in model container [2021-11-03 03:46:25,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:25,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:25,290 WARN L228 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_24be7b40-053b-40bf-8525-2e604aebe257/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-11-03 03:46:25,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:25,305 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:46:25,341 WARN L228 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_24be7b40-053b-40bf-8525-2e604aebe257/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-11-03 03:46:25,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:25,363 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:46:25,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25 WrapperNode [2021-11-03 03:46:25,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:25,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:46:25,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:46:25,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:46:25,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:46:25,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:46:25,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:46:25,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:46:25,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:46:25,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:46:25,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:46:25,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:46:25,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (1/1) ... [2021-11-03 03:46:25,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:25,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:46:25,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:46:25,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:46:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-03 03:46:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:46:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:46:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-03 03:46:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:46:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:46:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:46:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-03 03:46:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:46:25,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:46:28,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:46:28,229 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-03 03:46:28,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:28 BoogieIcfgContainer [2021-11-03 03:46:28,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:46:28,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:46:28,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:46:28,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:46:28,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:25" (1/3) ... [2021-11-03 03:46:28,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372a46c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:28, skipping insertion in model container [2021-11-03 03:46:28,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:25" (2/3) ... [2021-11-03 03:46:28,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372a46c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:28, skipping insertion in model container [2021-11-03 03:46:28,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:28" (3/3) ... [2021-11-03 03:46:28,242 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2021-11-03 03:46:28,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:46:28,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:46:28,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:46:28,310 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:46:28,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:46:28,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:46:28,330 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:28,330 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:28,331 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:46:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:28,337 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2021-11-03 03:46:28,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:28,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285077846] [2021-11-03 03:46:28,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:28,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:28,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:28,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:28,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:46:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:28,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:46:28,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:28,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:28,951 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:46:28,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285077846] [2021-11-03 03:46:28,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285077846] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:46:28,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:46:28,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:46:28,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487862720] [2021-11-03 03:46:28,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:46:28,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:46:28,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:46:28,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:46:28,979 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:46:29,005 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2021-11-03 03:46:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:46:29,007 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 03:46:29,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:46:29,016 INFO L225 Difference]: With dead ends: 82 [2021-11-03 03:46:29,017 INFO L226 Difference]: Without dead ends: 39 [2021-11-03 03:46:29,019 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:46:29,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-03 03:46:29,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-03 03:46:29,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-11-03 03:46:29,075 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2021-11-03 03:46:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:46:29,076 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-11-03 03:46:29,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-11-03 03:46:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 03:46:29,077 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:29,077 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:29,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:46:29,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:46:29,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:46:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2021-11-03 03:46:29,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:29,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487960622] [2021-11-03 03:46:29,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:29,297 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:29,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:29,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:29,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:46:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:29,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 03:46:29,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:32,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:40,071 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-11-03 03:47:01,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:01,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:01,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487960622] [2021-11-03 03:47:01,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487960622] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:01,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:01,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-03 03:47:01,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893601893] [2021-11-03 03:47:01,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:47:01,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:01,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:47:01,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2021-11-03 03:47:01,084 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:03,453 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_fmod_float_~x (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (_ +zero 8 24))) (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-03 03:47:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:07,614 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2021-11-03 03:47:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:47:07,614 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 03:47:07,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:07,616 INFO L225 Difference]: With dead ends: 44 [2021-11-03 03:47:07,616 INFO L226 Difference]: Without dead ends: 39 [2021-11-03 03:47:07,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=41, Invalid=97, Unknown=2, NotChecked=42, Total=182 [2021-11-03 03:47:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-03 03:47:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-03 03:47:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-11-03 03:47:07,624 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2021-11-03 03:47:07,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:07,624 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-11-03 03:47:07,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-11-03 03:47:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 03:47:07,626 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:07,626 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:07,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:07,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:07,827 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:47:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2021-11-03 03:47:07,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:07,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595018971] [2021-11-03 03:47:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:07,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:07,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:07,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:47:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:07,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:47:07,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:08,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:08,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:08,474 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:08,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595018971] [2021-11-03 03:47:08,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595018971] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:08,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:08,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-03 03:47:08,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649970993] [2021-11-03 03:47:08,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:47:08,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:08,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:47:08,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:47:08,477 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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) [2021-11-03 03:47:08,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:08,585 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-11-03 03:47:08,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:47:08,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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) Word has length 13 [2021-11-03 03:47:08,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:08,587 INFO L225 Difference]: With dead ends: 39 [2021-11-03 03:47:08,587 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 03:47:08,587 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:47:08,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 03:47:08,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 03:47:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:08,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 03:47:08,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-03 03:47:08,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:08,588 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 03:47:08,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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) [2021-11-03 03:47:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 03:47:08,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 03:47:08,591 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:47:08,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:08,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:08,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 03:47:08,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:08,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:47:11,321 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-11-03 03:47:11,321 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-11-03 03:47:11,321 INFO L857 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:47:11,321 INFO L857 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-11-03 03:47:11,322 INFO L853 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-11-03 03:47:11,322 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-11-03 03:47:11,322 INFO L857 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-03 03:47:11,322 INFO L853 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-11-03 03:47:11,322 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 03:47:11,323 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 03:47:11,323 INFO L857 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-11-03 03:47:11,323 INFO L857 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:47:11,323 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:47:11,323 INFO L857 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-11-03 03:47:11,323 INFO L860 garLoopResultBuilder]: At program point L129(lines 112 130) the Hoare annotation is: true [2021-11-03 03:47:11,324 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-11-03 03:47:11,324 INFO L857 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-11-03 03:47:11,324 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmod_float_~x (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))) [2021-11-03 03:47:11,324 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-03 03:47:11,324 INFO L857 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:47:11,324 INFO L853 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) [2021-11-03 03:47:11,325 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-03 03:47:11,325 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 03:47:11,325 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-03 03:47:11,325 INFO L853 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-11-03 03:47:11,325 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-11-03 03:47:11,326 INFO L857 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-11-03 03:47:11,326 INFO L853 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-11-03 03:47:11,326 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-11-03 03:47:11,326 INFO L853 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-11-03 03:47:11,326 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 03:47:11,326 INFO L857 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-11-03 03:47:11,327 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 127) no Hoare annotation was computed. [2021-11-03 03:47:11,327 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-11-03 03:47:11,327 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:47:11,327 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-11-03 03:47:11,327 INFO L857 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-11-03 03:47:11,327 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-03 03:47:11,328 INFO L853 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-11-03 03:47:11,328 INFO L857 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:47:11,328 INFO L857 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-11-03 03:47:11,328 INFO L853 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-11-03 03:47:11,333 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-03 03:47:11,334 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:47:11,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-03 03:47:11,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-03 03:47:11,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-03 03:47:11,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-03 03:47:11,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-03 03:47:11,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-03 03:47:11,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:47:11 BoogieIcfgContainer [2021-11-03 03:47:11,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:47:11,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:47:11,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:47:11,354 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:47:11,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:28" (3/4) ... [2021-11-03 03:47:11,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 03:47:11,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-03 03:47:11,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-03 03:47:11,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 03:47:11,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 03:47:11,395 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) [2021-11-03 03:47:11,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 03:47:11,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:47:11,411 INFO L168 Benchmark]: Toolchain (without parser) took 46395.59 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 40.7 MB in the beginning and 60.7 MB in the end (delta: -20.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:11,412 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 57.1 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:47:11,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.67 ms. Allocated memory is still 75.5 MB. Free memory was 40.5 MB in the beginning and 48.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:11,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.63 ms. Allocated memory is still 75.5 MB. Free memory was 48.5 MB in the beginning and 46.5 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:47:11,413 INFO L168 Benchmark]: Boogie Preprocessor took 53.95 ms. Allocated memory is still 75.5 MB. Free memory was 46.5 MB in the beginning and 44.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:11,414 INFO L168 Benchmark]: RCFGBuilder took 2733.28 ms. Allocated memory is still 75.5 MB. Free memory was 44.6 MB in the beginning and 51.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:11,414 INFO L168 Benchmark]: TraceAbstraction took 43120.29 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 51.3 MB in the beginning and 63.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:11,415 INFO L168 Benchmark]: Witness Printer took 56.14 ms. Allocated memory is still 98.6 MB. Free memory was 63.6 MB in the beginning and 60.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:11,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 57.1 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.67 ms. Allocated memory is still 75.5 MB. Free memory was 40.5 MB in the beginning and 48.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.63 ms. Allocated memory is still 75.5 MB. Free memory was 48.5 MB in the beginning and 46.5 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.95 ms. Allocated memory is still 75.5 MB. Free memory was 46.5 MB in the beginning and 44.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2733.28 ms. Allocated memory is still 75.5 MB. Free memory was 44.6 MB in the beginning and 51.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43120.29 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 51.3 MB in the beginning and 63.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Witness Printer took 56.14 ms. Allocated memory is still 98.6 MB. Free memory was 63.6 MB in the beginning and 60.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 11 SDslu, 255 SDs, 0 SdLazy, 35 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 32 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 32.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 427 SizeOfPredicates, 19 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 21 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: 110]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) && 1bv32 == \result - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-11-03 03:47:11,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-03 03:47:11,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-03 03:47:11,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-03 03:47:11,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-03 03:47:11,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-03 03:47:11,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) RESULT: Ultimate proved your program to be correct! [2021-11-03 03:47:11,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24be7b40-053b-40bf-8525-2e604aebe257/bin/utaipan-aC7eJsxGYH/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