./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG --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 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 .................................................................................................................................................................................................................................................................................................................................................. 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_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG --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 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:01:51,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:01:51,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:01:51,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:01:51,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:01:51,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:01:51,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:01:51,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:01:51,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:01:51,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:01:51,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:01:51,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:01:51,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:01:51,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:01:51,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:01:51,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:01:51,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:01:51,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:01:51,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:01:51,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:01:51,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:01:51,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:01:51,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:01:51,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:01:51,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:01:51,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:01:51,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:01:51,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:01:51,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:01:51,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:01:51,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:01:51,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:01:51,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:01:51,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:01:51,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:01:51,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:01:51,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:01:51,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:01:51,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:01:51,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:01:51,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:01:51,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:01:51,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:01:51,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:01:51,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:01:51,725 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:01:51,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:01:51,726 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:01:51,726 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:01:51,726 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:01:51,734 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:01:51,734 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:01:51,736 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:01:51,736 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:01:51,737 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:01:51,737 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:01:51,737 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:01:51,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:01:51,738 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:01:51,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:01:51,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:01:51,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:01:51,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:01:51,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:01:51,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:01:51,740 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:01:51,740 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:01:51,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:01:51,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:01:51,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:01:51,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:01:51,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:01:51,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:01:51,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:01:51,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:01:51,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:01:51,746 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:01:51,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:01:51,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:01:51,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:01:51,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:01:51,747 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_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 [2021-10-29 05:01:52,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:01:52,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:01:52,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:01:52,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:01:52,155 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:01:52,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-10-29 05:01:52,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/2d6cce27d/2eb57f4515ad4700ab33322a707b0c20/FLAG70de808fe [2021-10-29 05:01:52,845 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:01:52,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-10-29 05:01:52,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/2d6cce27d/2eb57f4515ad4700ab33322a707b0c20/FLAG70de808fe [2021-10-29 05:01:53,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/2d6cce27d/2eb57f4515ad4700ab33322a707b0c20 [2021-10-29 05:01:53,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:01:53,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:01:53,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:01:53,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:01:53,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:01:53,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c01bee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53, skipping insertion in model container [2021-10-29 05:01:53,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:01:53,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:01:53,514 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_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-10-29 05:01:53,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:01:53,528 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:01:53,593 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_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-10-29 05:01:53,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:01:53,614 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:01:53,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53 WrapperNode [2021-10-29 05:01:53,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:01:53,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:01:53,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:01:53,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:01:53,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:01:53,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:01:53,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:01:53,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:01:53,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:01:53,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:01:53,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:01:53,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:01:53,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (1/1) ... [2021-10-29 05:01:53,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:01:53,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:01:53,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:01:53,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:01:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:01:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:01:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 05:01:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:01:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 05:01:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:01:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:01:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:01:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-29 05:01:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:01:55,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:01:55,317 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-29 05:01:55,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:55 BoogieIcfgContainer [2021-10-29 05:01:55,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:01:55,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:01:55,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:01:55,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:01:55,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:01:53" (1/3) ... [2021-10-29 05:01:55,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a2490c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:01:55, skipping insertion in model container [2021-10-29 05:01:55,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:53" (2/3) ... [2021-10-29 05:01:55,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a2490c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:01:55, skipping insertion in model container [2021-10-29 05:01:55,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:55" (3/3) ... [2021-10-29 05:01:55,335 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2021-10-29 05:01:55,342 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:01:55,342 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:01:55,404 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:01:55,412 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 [2021-10-29 05:01:55,413 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:01:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 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) [2021-10-29 05:01:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:01:55,439 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:55,440 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:55,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:55,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:55,448 INFO L85 PathProgramCache]: Analyzing trace with hash 382235670, now seen corresponding path program 1 times [2021-10-29 05:01:55,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:01:55,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727178901] [2021-10-29 05:01:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:55,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:01:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:55,753 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:01:55,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727178901] [2021-10-29 05:01:55,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727178901] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:55,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:55,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:01:55,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280171299] [2021-10-29 05:01:55,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:01:55,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:01:55,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:01:55,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:01:55,795 INFO L87 Difference]: Start difference. First operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:55,829 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2021-10-29 05:01:55,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:01:55,831 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 05:01:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:55,841 INFO L225 Difference]: With dead ends: 163 [2021-10-29 05:01:55,842 INFO L226 Difference]: Without dead ends: 80 [2021-10-29 05:01:55,845 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:01:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-29 05:01:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-29 05:01:55,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 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) [2021-10-29 05:01:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 109 transitions. [2021-10-29 05:01:55,892 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 109 transitions. Word has length 9 [2021-10-29 05:01:55,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:55,893 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 109 transitions. [2021-10-29 05:01:55,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 109 transitions. [2021-10-29 05:01:55,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:01:55,894 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:55,894 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:55,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:01:55,895 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:55,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:55,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2045881791, now seen corresponding path program 1 times [2021-10-29 05:01:55,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:01:55,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221187514] [2021-10-29 05:01:55,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:55,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:01:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:01:56,009 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:01:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:01:56,183 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:01:56,183 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:01:56,185 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:01:56,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:01:56,192 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:01:56,196 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:01:56,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:01:56 BoogieIcfgContainer [2021-10-29 05:01:56,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:01:56,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:01:56,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:01:56,253 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:01:56,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:55" (3/4) ... [2021-10-29 05:01:56,257 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:01:56,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:01:56,259 INFO L168 Benchmark]: Toolchain (without parser) took 3043.19 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 62.3 MB in the beginning and 90.3 MB in the end (delta: -28.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:01:56,260 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 67.4 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:01:56,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.40 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 67.8 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:01:56,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.28 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 64.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:01:56,262 INFO L168 Benchmark]: Boogie Preprocessor took 118.59 ms. Allocated memory is still 96.5 MB. Free memory was 64.4 MB in the beginning and 61.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:01:56,264 INFO L168 Benchmark]: RCFGBuilder took 1510.91 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 61.0 MB in the beginning and 84.5 MB in the end (delta: -23.5 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:01:56,265 INFO L168 Benchmark]: TraceAbstraction took 927.76 ms. Allocated memory is still 123.7 MB. Free memory was 83.8 MB in the beginning and 90.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:01:56,265 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 123.7 MB. Free memory is still 90.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:01:56,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 67.4 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 399.40 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 67.8 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.28 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 64.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.59 ms. Allocated memory is still 96.5 MB. Free memory was 64.4 MB in the beginning and 61.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1510.91 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 61.0 MB in the beginning and 84.5 MB in the end (delta: -23.5 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 927.76 ms. Allocated memory is still 123.7 MB. Free memory was 83.8 MB in the beginning and 90.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.33 ms. Allocated memory is still 123.7 MB. Free memory is still 90.3 MB. 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 260]: 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 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -1.0 / 0.0; [L254] double y = -1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != -3 * pi_o_4 VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L260] reach_error() VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-10-29 05:01:56,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:01:59,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:01:59,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:01:59,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:01:59,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:01:59,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:01:59,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:01:59,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:01:59,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:01:59,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:01:59,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:01:59,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:01:59,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:01:59,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:01:59,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:01:59,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:01:59,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:01:59,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:01:59,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:01:59,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:01:59,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:01:59,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:01:59,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:01:59,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:01:59,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:01:59,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:01:59,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:01:59,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:01:59,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:01:59,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:01:59,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:01:59,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:01:59,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:01:59,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:01:59,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:01:59,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:01:59,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:01:59,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:01:59,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:01:59,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:01:59,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:01:59,549 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:01:59,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:01:59,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:01:59,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:01:59,606 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:01:59,607 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:01:59,607 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:01:59,607 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:01:59,607 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:01:59,607 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:01:59,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:01:59,610 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:01:59,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:01:59,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:01:59,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:01:59,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:01:59,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:01:59,612 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:01:59,612 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:01:59,612 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:01:59,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:01:59,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:01:59,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:01:59,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:01:59,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:01:59,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:01:59,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:01:59,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:01:59,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:01:59,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:01:59,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:01:59,615 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:01:59,615 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:01:59,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:01:59,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:01:59,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:01:59,616 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_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c75cb1914098e0a99942bfcf64a7e270bd0424176714d202a2c3dfb2438929 [2021-10-29 05:02:00,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:02:00,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:02:00,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:02:00,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:02:00,154 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:02:00,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-10-29 05:02:00,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/7209c35ba/2fca9380b78240b7a57292c3a48e1029/FLAG4bfaf5ad2 [2021-10-29 05:02:00,868 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:02:00,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2021-10-29 05:02:00,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/7209c35ba/2fca9380b78240b7a57292c3a48e1029/FLAG4bfaf5ad2 [2021-10-29 05:02:01,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/data/7209c35ba/2fca9380b78240b7a57292c3a48e1029 [2021-10-29 05:02:01,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:02:01,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:02:01,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:02:01,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:02:01,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:02:01,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25849a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01, skipping insertion in model container [2021-10-29 05:02:01,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:02:01,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:02:01,501 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_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-10-29 05:02:01,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:02:01,522 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:02:01,651 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_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c[6216,6229] [2021-10-29 05:02:01,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:02:01,706 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:02:01,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01 WrapperNode [2021-10-29 05:02:01,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:02:01,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:02:01,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:02:01,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:02:01,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:02:01,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:02:01,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:02:01,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:02:01,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:02:01,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:02:01,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:02:01,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:02:01,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (1/1) ... [2021-10-29 05:02:01,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:02:01,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:02:01,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:02:01,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:02:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 05:02:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 05:02:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:02:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:02:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-29 05:02:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:02:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:02:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:02:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:02:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:02:44,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:02:44,071 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-29 05:02:44,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:02:44 BoogieIcfgContainer [2021-10-29 05:02:44,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:02:44,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:02:44,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:02:44,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:02:44,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:02:01" (1/3) ... [2021-10-29 05:02:44,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f0691a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:02:44, skipping insertion in model container [2021-10-29 05:02:44,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:02:01" (2/3) ... [2021-10-29 05:02:44,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f0691a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:02:44, skipping insertion in model container [2021-10-29 05:02:44,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:02:44" (3/3) ... [2021-10-29 05:02:44,085 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2021-10-29 05:02:44,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:02:44,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:02:44,152 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:02:44,160 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 [2021-10-29 05:02:44,161 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:02:44,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 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) [2021-10-29 05:02:44,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:02:44,188 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:02:44,189 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:02:44,198 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:02:44,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:02:44,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2021-10-29 05:02:44,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:02:44,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213193664] [2021-10-29 05:02:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:02:44,244 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:02:44,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:02:44,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:02:44,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:02:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:02:44,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:02:44,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:02:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:02:45,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:02:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:02:45,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:02:45,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213193664] [2021-10-29 05:02:45,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213193664] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:02:45,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:02:45,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:02:45,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421388375] [2021-10-29 05:02:45,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:02:45,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:02:45,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:02:45,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:02:45,404 INFO L87 Difference]: Start difference. First operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 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) [2021-10-29 05:02:45,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:02:45,439 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2021-10-29 05:02:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:02:45,441 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 [2021-10-29 05:02:45,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:02:45,454 INFO L225 Difference]: With dead ends: 224 [2021-10-29 05:02:45,454 INFO L226 Difference]: Without dead ends: 110 [2021-10-29 05:02:45,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:02:45,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-29 05:02:45,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-10-29 05:02:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 109 states have internal predecessors, (158), 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) [2021-10-29 05:02:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2021-10-29 05:02:45,502 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2021-10-29 05:02:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:02:45,503 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2021-10-29 05:02:45,503 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) [2021-10-29 05:02:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2021-10-29 05:02:45,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:02:45,505 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:02:45,505 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:02:45,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:02:45,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:02:45,714 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:02:45,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:02:45,715 INFO L85 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2021-10-29 05:02:45,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:02:45,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087459033] [2021-10-29 05:02:45,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:02:45,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:02:45,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:02:45,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:02:45,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:02:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:02:46,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:02:46,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:02:47,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2021-10-29 05:02:50,586 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:02:50,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 80 [2021-10-29 05:02:50,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-10-29 05:02:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:02:54,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:02:58,514 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:02:58,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 108 [2021-10-29 05:02:58,701 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:02:58,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 110 [2021-10-29 05:02:58,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:02:58,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087459033] [2021-10-29 05:02:58,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-10-29 05:02:58,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1139881294] [2021-10-29 05:02:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:02:58,750 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:02:58,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:02:58,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:02:58,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-29 05:03:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:02,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:03:02,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@19d73367 [2021-10-29 05:03:02,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396437304] [2021-10-29 05:03:02,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:02,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:03:02,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:03:02,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:03:02,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 05:03:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:02,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:03:02,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@19d73367 [2021-10-29 05:03:02,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:02,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 05:03:02,571 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 05:03:02,571 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 05:03:02,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:03:02,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:02,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-10-29 05:03:03,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-29 05:03:03,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:03,192 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:03:03,197 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:03:03,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:03:03 BoogieIcfgContainer [2021-10-29 05:03:03,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:03:03,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:03:03,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:03:03,239 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:03:03,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:02:44" (3/4) ... [2021-10-29 05:03:03,244 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:03:03,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:03:03,253 INFO L168 Benchmark]: Toolchain (without parser) took 62069.54 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 54.4 MB in the beginning and 60.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:03,254 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 73.4 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:03,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.07 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 52.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:03,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.01 ms. Allocated memory is still 73.4 MB. Free memory was 52.4 MB in the beginning and 48.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:03,258 INFO L168 Benchmark]: Boogie Preprocessor took 78.55 ms. Allocated memory is still 73.4 MB. Free memory was 48.6 MB in the beginning and 45.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:03,262 INFO L168 Benchmark]: RCFGBuilder took 42161.22 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 45.0 MB in the end (delta: 300.7 kB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:03,263 INFO L168 Benchmark]: TraceAbstraction took 19161.49 ms. Allocated memory is still 88.1 MB. Free memory was 44.6 MB in the beginning and 60.0 MB in the end (delta: -15.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:03,264 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 88.1 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:03,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 73.4 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 530.07 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 52.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.01 ms. Allocated memory is still 73.4 MB. Free memory was 52.4 MB in the beginning and 48.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.55 ms. Allocated memory is still 73.4 MB. Free memory was 48.6 MB in the beginning and 45.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 42161.22 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 45.0 MB in the end (delta: 300.7 kB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19161.49 ms. Allocated memory is still 88.1 MB. Free memory was 44.6 MB in the beginning and 60.0 MB in the end (delta: -15.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.44 ms. Allocated memory is still 88.1 MB. Free memory is still 60.0 MB. 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 260]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -1.0 / 0.0; [L254] double y = -1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != -3 * pi_o_4 [L260] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 12.6s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 7 QuantifiedInterpolants, 364 SizeOfPredicates, 14 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:03:03,506 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 05:03:03,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2f6744-2bf8-4bb4-ab83-2de5354ccca3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...