./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE --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 eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE --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 eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:59:05,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:59:05,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:59:05,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:59:05,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:59:05,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:59:05,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:59:05,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:59:05,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:59:05,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:59:05,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:59:05,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:59:05,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:59:05,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:59:05,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:59:05,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:59:05,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:59:05,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:59:05,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:59:05,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:59:05,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:59:05,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:59:05,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:59:05,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:59:05,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:59:05,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:59:05,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:59:05,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:59:05,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:59:05,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:59:05,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:59:05,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:59:05,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:59:05,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:59:05,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:59:05,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:59:05,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:59:05,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:59:05,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:59:05,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:59:05,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:59:05,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:59:05,833 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:59:05,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:59:05,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:59:05,834 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:59:05,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:59:05,834 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:59:05,835 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:59:05,835 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:59:05,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:59:05,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:59:05,840 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:59:05,844 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:59:05,844 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:59:05,844 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:59:05,845 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:59:05,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:59:05,846 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:59:05,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:59:05,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:59:05,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:59:05,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:59:05,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:59:05,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:59:05,847 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:59:05,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:59:05,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:59:05,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:59:05,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:59:05,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:59:05,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:59:05,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:05,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:59:05,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:59:05,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:59:05,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:59:05,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:59:05,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:59:05,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:59:05,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:59:05,850 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_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-10-24 10:59:06,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:59:06,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:59:06,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:59:06,185 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:59:06,186 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:59:06,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-24 10:59:06,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/faf9f7af7/b342b28aa083425c8b7c9c4961999c41/FLAG165016937 [2021-10-24 10:59:06,692 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:59:06,693 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-24 10:59:06,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/faf9f7af7/b342b28aa083425c8b7c9c4961999c41/FLAG165016937 [2021-10-24 10:59:07,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/faf9f7af7/b342b28aa083425c8b7c9c4961999c41 [2021-10-24 10:59:07,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:59:07,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:59:07,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:07,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:59:07,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:59:07,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529959bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07, skipping insertion in model container [2021-10-24 10:59:07,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:59:07,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:59:07,326 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_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-24 10:59:07,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:07,337 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:59:07,379 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_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-24 10:59:07,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:07,393 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:59:07,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07 WrapperNode [2021-10-24 10:59:07,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:07,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:07,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:59:07,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:59:07,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:07,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:59:07,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:59:07,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:59:07,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:59:07,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:59:07,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:59:07,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:59:07,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (1/1) ... [2021-10-24 10:59:07,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:07,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:59:07,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:59:07,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:59:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:59:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:59:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 10:59:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-24 10:59:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-24 10:59:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:59:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:59:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 10:59:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-24 10:59:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:59:08,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:59:08,371 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-24 10:59:08,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:08 BoogieIcfgContainer [2021-10-24 10:59:08,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:59:08,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:59:08,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:59:08,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:59:08,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:59:07" (1/3) ... [2021-10-24 10:59:08,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102a3a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:08, skipping insertion in model container [2021-10-24 10:59:08,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:07" (2/3) ... [2021-10-24 10:59:08,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102a3a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:08, skipping insertion in model container [2021-10-24 10:59:08,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:08" (3/3) ... [2021-10-24 10:59:08,383 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-10-24 10:59:08,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:59:08,388 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:59:08,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:59:08,443 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 [2021-10-24 10:59:08,444 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:59:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 38 states have internal predecessors, (66), 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) [2021-10-24 10:59:08,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:59:08,464 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:08,464 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:08,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:08,471 INFO L82 PathProgramCache]: Analyzing trace with hash -159335407, now seen corresponding path program 1 times [2021-10-24 10:59:08,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:59:08,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910197285] [2021-10-24 10:59:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:08,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:59:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:08,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:59:08,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910197285] [2021-10-24 10:59:08,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910197285] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:08,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:08,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:59:08,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999483819] [2021-10-24 10:59:08,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:59:08,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:59:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:59:08,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:59:08,643 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 38 states have internal predecessors, (66), 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) [2021-10-24 10:59:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:08,661 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2021-10-24 10:59:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:59:08,662 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 [2021-10-24 10:59:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:08,671 INFO L225 Difference]: With dead ends: 77 [2021-10-24 10:59:08,671 INFO L226 Difference]: Without dead ends: 37 [2021-10-24 10:59:08,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:59:08,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-24 10:59:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-24 10:59:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5) internal successors, (54), 36 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) [2021-10-24 10:59:08,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2021-10-24 10:59:08,705 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2021-10-24 10:59:08,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:08,706 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2021-10-24 10:59:08,706 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) [2021-10-24 10:59:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2021-10-24 10:59:08,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:59:08,707 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:08,707 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:08,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:59:08,708 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:08,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:08,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1510972428, now seen corresponding path program 1 times [2021-10-24 10:59:08,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:59:08,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294362338] [2021-10-24 10:59:08,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:08,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:59:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:59:08,820 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:59:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:59:08,921 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:59:08,921 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:59:08,923 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:59:08,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:59:08,930 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:59:08,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:59:08 BoogieIcfgContainer [2021-10-24 10:59:08,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:59:08,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:59:08,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:59:08,954 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:59:08,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:08" (3/4) ... [2021-10-24 10:59:08,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:59:08,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:59:08,960 INFO L168 Benchmark]: Toolchain (without parser) took 1890.32 ms. Allocated memory is still 121.6 MB. Free memory was 85.3 MB in the beginning and 89.5 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:08,960 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory was 95.1 MB in the beginning and 95.0 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:08,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.08 ms. Allocated memory is still 121.6 MB. Free memory was 85.1 MB in the beginning and 93.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:08,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.01 ms. Allocated memory is still 121.6 MB. Free memory was 93.3 MB in the beginning and 90.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:08,962 INFO L168 Benchmark]: Boogie Preprocessor took 42.89 ms. Allocated memory is still 121.6 MB. Free memory was 90.6 MB in the beginning and 88.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:08,963 INFO L168 Benchmark]: RCFGBuilder took 858.66 ms. Allocated memory is still 121.6 MB. Free memory was 88.5 MB in the beginning and 61.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:08,964 INFO L168 Benchmark]: TraceAbstraction took 577.72 ms. Allocated memory is still 121.6 MB. Free memory was 61.2 MB in the beginning and 90.2 MB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:08,964 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 121.6 MB. Free memory was 90.2 MB in the beginning and 89.5 MB in the end (delta: 697.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:08,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory was 95.1 MB in the beginning and 95.0 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 316.08 ms. Allocated memory is still 121.6 MB. Free memory was 85.1 MB in the beginning and 93.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.01 ms. Allocated memory is still 121.6 MB. Free memory was 93.3 MB in the beginning and 90.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.89 ms. Allocated memory is still 121.6 MB. Free memory was 90.6 MB in the beginning and 88.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 858.66 ms. Allocated memory is still 121.6 MB. Free memory was 88.5 MB in the beginning and 61.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 577.72 ms. Allocated memory is still 121.6 MB. Free memory was 61.2 MB in the beginning and 90.2 MB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.90 ms. Allocated memory is still 121.6 MB. Free memory was 90.2 MB in the beginning and 89.5 MB in the end (delta: 697.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 493.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 45.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.4ms SsaConstructionTime, 116.8ms SatisfiabilityAnalysisTime, 46.1ms 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 [2021-10-24 10:59:09,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:59:11,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:59:11,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:59:11,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:59:11,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:59:11,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:59:11,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:59:11,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:59:11,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:59:11,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:59:11,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:59:11,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:59:11,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:59:11,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:59:11,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:59:11,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:59:11,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:59:11,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:59:11,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:59:11,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:59:11,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:59:11,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:59:11,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:59:11,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:59:11,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:59:11,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:59:11,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:59:11,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:59:11,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:59:11,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:59:11,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:59:11,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:59:11,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:59:11,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:59:11,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:59:11,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:59:11,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:59:11,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:59:11,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:59:11,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:59:11,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:59:11,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:59:11,571 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:59:11,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:59:11,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:59:11,573 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:59:11,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:59:11,574 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:59:11,574 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:59:11,574 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:59:11,575 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:59:11,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:59:11,577 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:59:11,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:59:11,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:59:11,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:59:11,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:59:11,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:59:11,579 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:59:11,579 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:59:11,579 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:59:11,579 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:59:11,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:59:11,580 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:59:11,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:59:11,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:59:11,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:59:11,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:59:11,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:11,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:59:11,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:59:11,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:59:11,582 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:59:11,582 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:59:11,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:59:11,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:59:11,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:59:11,583 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_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-10-24 10:59:11,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:59:11,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:59:11,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:59:11,997 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:59:11,997 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:59:11,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-24 10:59:12,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/aa3e914d1/ae309a9cb0bc47faac5b4ebb44077aff/FLAG171d75c26 [2021-10-24 10:59:12,590 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:59:12,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-24 10:59:12,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/aa3e914d1/ae309a9cb0bc47faac5b4ebb44077aff/FLAG171d75c26 [2021-10-24 10:59:12,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/data/aa3e914d1/ae309a9cb0bc47faac5b4ebb44077aff [2021-10-24 10:59:12,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:59:12,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:59:12,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:12,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:59:12,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:59:12,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:12" (1/1) ... [2021-10-24 10:59:12,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a82f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:12, skipping insertion in model container [2021-10-24 10:59:12,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:12" (1/1) ... [2021-10-24 10:59:12,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:59:12,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:59:13,257 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_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-24 10:59:13,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:13,306 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:59:13,386 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_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-24 10:59:13,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:13,405 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:59:13,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13 WrapperNode [2021-10-24 10:59:13,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:13,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:13,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:59:13,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:59:13,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:13,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:59:13,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:59:13,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:59:13,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:59:13,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:59:13,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:59:13,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:59:13,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (1/1) ... [2021-10-24 10:59:13,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:13,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:59:13,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:59:13,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:59:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-24 10:59:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-24 10:59:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:59:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:59:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-24 10:59:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 10:59:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:59:13,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:59:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 10:59:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:59:17,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:59:17,091 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-24 10:59:17,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:17 BoogieIcfgContainer [2021-10-24 10:59:17,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:59:17,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:59:17,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:59:17,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:59:17,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:59:12" (1/3) ... [2021-10-24 10:59:17,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50368f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:17, skipping insertion in model container [2021-10-24 10:59:17,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:13" (2/3) ... [2021-10-24 10:59:17,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50368f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:17, skipping insertion in model container [2021-10-24 10:59:17,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:17" (3/3) ... [2021-10-24 10:59:17,114 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-10-24 10:59:17,119 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:59:17,119 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:59:17,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:59:17,194 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 [2021-10-24 10:59:17,198 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:59:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2021-10-24 10:59:17,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:59:17,225 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:17,226 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:17,227 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:17,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:17,233 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-24 10:59:17,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:17,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164087203] [2021-10-24 10:59:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:17,249 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:17,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:17,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:17,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:59:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:18,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:59:18,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:59:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:18,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:59:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:18,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:59:18,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164087203] [2021-10-24 10:59:18,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164087203] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:18,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:18,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:59:18,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243856261] [2021-10-24 10:59:18,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:59:18,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:59:18,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:59:18,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:59:18,657 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2021-10-24 10:59:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:18,677 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-10-24 10:59:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:59:18,679 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 [2021-10-24 10:59:18,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:18,688 INFO L225 Difference]: With dead ends: 108 [2021-10-24 10:59:18,688 INFO L226 Difference]: Without dead ends: 52 [2021-10-24 10:59:18,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:59:18,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-24 10:59:18,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-24 10:59:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2021-10-24 10:59:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-10-24 10:59:18,721 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-10-24 10:59:18,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:18,722 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-10-24 10:59:18,722 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) [2021-10-24 10:59:18,722 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-10-24 10:59:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 10:59:18,723 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:18,724 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:18,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-24 10:59:18,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:59:18,941 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:18,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:18,941 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-10-24 10:59:18,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:59:18,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534847807] [2021-10-24 10:59:18,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:18,943 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:59:18,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:59:18,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:59:18,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:59:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:20,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-24 10:59:20,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:59:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:37,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:59:52,410 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-10-24 11:00:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:18,286 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:00:18,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534847807] [2021-10-24 11:00:18,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534847807] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:00:18,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:00:18,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-24 11:00:18,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498393227] [2021-10-24 11:00:18,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-24 11:00:18,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:00:18,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-24 11:00:18,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=68, Unknown=3, NotChecked=16, Total=110 [2021-10-24 11:00:18,290 INFO L87 Difference]: Start difference. First operand 52 states and 78 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) [2021-10-24 11:00:22,141 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-24 11:00:33,749 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 13 [2021-10-24 11:00:53,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:00:53,069 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2021-10-24 11:00:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 11:00:53,098 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 [2021-10-24 11:00:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:00:53,099 INFO L225 Difference]: With dead ends: 57 [2021-10-24 11:00:53,099 INFO L226 Difference]: Without dead ends: 52 [2021-10-24 11:00:53,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 42963.2ms TimeCoverageRelationStatistics Valid=40, Invalid=96, Unknown=4, NotChecked=42, Total=182 [2021-10-24 11:00:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-24 11:00:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-24 11:00:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 51 states have internal predecessors, (77), 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) [2021-10-24 11:00:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-10-24 11:00:53,108 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-10-24 11:00:53,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:00:53,108 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-10-24 11:00:53,109 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) [2021-10-24 11:00:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-10-24 11:00:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 11:00:53,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:00:53,110 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:00:53,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-24 11:00:53,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:00:53,311 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:00:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:00:53,312 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-10-24 11:00:53,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:00:53,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527225115] [2021-10-24 11:00:53,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:00:53,313 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:00:53,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:00:53,315 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:00:53,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:00:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:00:53,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 11:00:53,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:00:53,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-10-24 11:00:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:54,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:00:54,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-10-24 11:00:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:55,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:00:55,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527225115] [2021-10-24 11:00:55,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527225115] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:00:55,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:00:55,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 11:00:55,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112164134] [2021-10-24 11:00:55,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 11:00:55,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:00:55,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 11:00:55,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:00:55,018 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:00:55,350 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-10-24 11:00:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 11:00:55,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-24 11:00:55,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:00:55,355 INFO L225 Difference]: With dead ends: 52 [2021-10-24 11:00:55,355 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 11:00:55,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 906.1ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-24 11:00:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 11:00:55,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 11:00:55,356 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) [2021-10-24 11:00:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 11:00:55,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-24 11:00:55,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:00:55,357 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 11:00:55,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:55,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 11:00:55,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 11:00:55,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:00:55,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-24 11:00:55,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:00:55,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 11:00:55,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:00:55,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:01:07,301 WARN L207 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2021-10-24 11:01:07,303 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-10-24 11:01:07,303 INFO L853 garLoopResultBuilder]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-10-24 11:01:07,303 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 11:01:07,304 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-10-24 11:01:07,304 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-10-24 11:01:07,304 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-10-24 11:01:07,304 INFO L857 garLoopResultBuilder]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-10-24 11:01:07,304 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-24 11:01:07,304 INFO L857 garLoopResultBuilder]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,304 INFO L857 garLoopResultBuilder]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-10-24 11:01:07,304 INFO L853 garLoopResultBuilder]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-10-24 11:01:07,305 INFO L857 garLoopResultBuilder]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-10-24 11:01:07,306 INFO L853 garLoopResultBuilder]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-10-24 11:01:07,306 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 11:01:07,306 INFO L853 garLoopResultBuilder]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-10-24 11:01:07,306 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-24 11:01:07,306 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-10-24 11:01:07,306 INFO L857 garLoopResultBuilder]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-10-24 11:01:07,306 INFO L853 garLoopResultBuilder]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-10-24 11:01:07,306 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-10-24 11:01:07,306 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 11:01:07,306 INFO L857 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-10-24 11:01:07,307 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-10-24 11:01:07,307 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-10-24 11:01:07,307 INFO L857 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-10-24 11:01:07,307 INFO L853 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-24 11:01:07,307 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-10-24 11:01:07,307 INFO L853 garLoopResultBuilder]: At program point L162(lines 25 163) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2021-10-24 11:01:07,307 INFO L853 garLoopResultBuilder]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-10-24 11:01:07,307 INFO L857 garLoopResultBuilder]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-10-24 11:01:07,308 INFO L860 garLoopResultBuilder]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-10-24 11:01:07,308 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-24 11:01:07,309 INFO L857 garLoopResultBuilder]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,309 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-10-24 11:01:07,309 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-24 11:01:07,309 INFO L853 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0))))) [2021-10-24 11:01:07,309 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-10-24 11:01:07,309 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-10-24 11:01:07,309 INFO L857 garLoopResultBuilder]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:01:07,309 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-24 11:01:07,315 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:01:07,321 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,340 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,341 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,341 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,341 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:01:07 BoogieIcfgContainer [2021-10-24 11:01:07,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:01:07,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:01:07,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:01:07,349 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:01:07,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:17" (3/4) ... [2021-10-24 11:01:07,353 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 11:01:07,366 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-24 11:01:07,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-24 11:01:07,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:01:07,372 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:01:07,422 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:01:07,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:01:07,426 INFO L168 Benchmark]: Toolchain (without parser) took 114480.66 ms. Allocated memory is still 69.2 MB. Free memory was 47.0 MB in the beginning and 38.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:01:07,427 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 52.4 MB. Free memory is still 33.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:01:07,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.42 ms. Allocated memory is still 69.2 MB. Free memory was 46.8 MB in the beginning and 49.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-24 11:01:07,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.96 ms. Allocated memory is still 69.2 MB. Free memory was 49.3 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:01:07,430 INFO L168 Benchmark]: Boogie Preprocessor took 58.53 ms. Allocated memory is still 69.2 MB. Free memory was 47.1 MB in the beginning and 45.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:01:07,433 INFO L168 Benchmark]: RCFGBuilder took 3571.39 ms. Allocated memory is still 69.2 MB. Free memory was 44.8 MB in the beginning and 42.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-24 11:01:07,433 INFO L168 Benchmark]: TraceAbstraction took 110240.95 ms. Allocated memory is still 69.2 MB. Free memory was 42.3 MB in the beginning and 40.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 937.4 kB. Max. memory is 16.1 GB. [2021-10-24 11:01:07,433 INFO L168 Benchmark]: Witness Printer took 76.19 ms. Allocated memory is still 69.2 MB. Free memory was 40.9 MB in the beginning and 38.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:01:07,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 52.4 MB. Free memory is still 33.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 459.42 ms. Allocated memory is still 69.2 MB. Free memory was 46.8 MB in the beginning and 49.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.96 ms. Allocated memory is still 69.2 MB. Free memory was 49.3 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.53 ms. Allocated memory is still 69.2 MB. Free memory was 47.1 MB in the beginning and 45.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3571.39 ms. Allocated memory is still 69.2 MB. Free memory was 44.8 MB in the beginning and 42.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 110240.95 ms. Allocated memory is still 69.2 MB. Free memory was 42.3 MB in the beginning and 40.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 937.4 kB. Max. memory is 16.1 GB. * Witness Printer took 76.19 ms. Allocated memory is still 69.2 MB. Free memory was 40.9 MB in the beginning and 38.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,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[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,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[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,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[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,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[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 177]: 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, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 110136.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 11.7ms, AutomataDifference: 35198.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 11737.6ms, InitialAbstractionConstructionTime: 16.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 160 SDtfs, 6 SDslu, 474 SDs, 0 SdLazy, 34 SolverSat, 2 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 14463.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 43869.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 26.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 50 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 36.7ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 11694.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 54.1ms SsaConstructionTime, 2065.7ms SatisfiabilityAnalysisTime, 60146.8ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 413 SizeOfPredicates, 18 NumberOfNonLiveVariables, 199 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: 18]: Loop Invariant [2021-10-24 11:01:07,448 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,448 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,448 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,449 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,449 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,450 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant [2021-10-24 11:01:07,456 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,456 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,456 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,456 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,456 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,457 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,457 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,457 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-24 11:01:07,457 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,457 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant [2021-10-24 11:01:07,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:01:07,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-10-24 11:01:07,662 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-24 11:01:07,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293fd6b-1621-4fb6-aaba-ecb9ba00e766/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...