./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs --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 8f53d9ed7fe14462ecadf09af148bc11769a4a61 ................................................................................................................................................................................................................................................ 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_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs --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 8f53d9ed7fe14462ecadf09af148bc11769a4a61 ................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:40:55,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:40:55,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:40:55,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:40:55,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:40:55,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:40:55,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:40:55,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:40:55,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:40:55,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:40:55,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:40:55,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:40:55,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:40:55,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:40:55,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:40:55,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:40:55,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:40:55,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:40:55,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:40:55,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:40:55,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:40:55,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:40:55,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:40:55,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:40:55,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:40:55,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:40:55,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:40:55,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:40:55,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:40:55,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:40:55,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:40:55,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:40:55,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:40:55,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:40:55,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:40:55,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:40:55,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:40:55,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:40:55,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:40:55,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:40:55,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:40:55,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:40:55,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:40:55,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:40:55,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:40:55,515 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:40:55,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:40:55,515 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:40:55,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:40:55,516 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:40:55,516 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:40:55,516 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:40:55,518 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:40:55,518 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:40:55,518 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:40:55,519 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:40:55,519 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:40:55,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:40:55,520 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:40:55,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:40:55,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:40:55,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:40:55,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:40:55,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:40:55,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:40:55,522 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:40:55,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:40:55,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:40:55,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:40:55,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:40:55,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:40:55,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:40:55,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:40:55,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:40:55,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:40:55,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:40:55,527 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:40:55,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:40:55,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:40:55,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:40:55,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:40:55,528 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_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2021-10-16 02:40:55,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:40:56,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:40:56,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:40:56,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:40:56,008 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:40:56,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-16 02:40:56,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/3cae733a4/030766d76ff64fc1aec20e33f3af5e4a/FLAG01a1a931c [2021-10-16 02:40:56,792 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:40:56,795 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-16 02:40:56,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/3cae733a4/030766d76ff64fc1aec20e33f3af5e4a/FLAG01a1a931c [2021-10-16 02:40:57,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/3cae733a4/030766d76ff64fc1aec20e33f3af5e4a [2021-10-16 02:40:57,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:40:57,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:40:57,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:40:57,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:40:57,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:40:57,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cadd9b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57, skipping insertion in model container [2021-10-16 02:40:57,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:40:57,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:40:57,428 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_845d5252-de2a-44fa-968c-f0951efe1e45/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-16 02:40:57,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:40:57,445 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:40:57,465 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_845d5252-de2a-44fa-968c-f0951efe1e45/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-16 02:40:57,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:40:57,484 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:40:57,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57 WrapperNode [2021-10-16 02:40:57,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:40:57,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:40:57,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:40:57,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:40:57,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:40:57,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:40:57,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:40:57,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:40:57,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:40:57,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:40:57,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:40:57,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:40:57,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (1/1) ... [2021-10-16 02:40:57,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:40:57,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:40:57,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:40:57,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:40:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:40:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:40:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:40:57,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:40:58,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:40:58,011 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 02:40:58,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:40:58 BoogieIcfgContainer [2021-10-16 02:40:58,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:40:58,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:40:58,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:40:58,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:40:58,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:40:57" (1/3) ... [2021-10-16 02:40:58,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d3e04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:40:58, skipping insertion in model container [2021-10-16 02:40:58,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:40:57" (2/3) ... [2021-10-16 02:40:58,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d3e04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:40:58, skipping insertion in model container [2021-10-16 02:40:58,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:40:58" (3/3) ... [2021-10-16 02:40:58,038 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2021-10-16 02:40:58,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:40:58,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:40:58,121 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:40:58,129 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, mConcurrency=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 [2021-10-16 02:40:58,130 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:40:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-10-16 02:40:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:40:58,190 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:40:58,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:40:58,192 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:40:58,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:40:58,207 INFO L82 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2021-10-16 02:40:58,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:40:58,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615018262] [2021-10-16 02:40:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:40:58,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:40:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:40:58,398 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:40:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:40:58,491 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:40:58,494 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:40:58,496 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:40:58,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:40:58,511 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:40:58,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:40:58 BoogieIcfgContainer [2021-10-16 02:40:58,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:40:58,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:40:58,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:40:58,548 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:40:58,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:40:58" (3/4) ... [2021-10-16 02:40:58,553 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:40:58,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:40:58,559 INFO L168 Benchmark]: Toolchain (without parser) took 1413.52 ms. Allocated memory is still 104.9 MB. Free memory was 64.5 MB in the beginning and 52.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:58,561 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 81.0 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:40:58,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.36 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 79.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:58,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.86 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:58,566 INFO L168 Benchmark]: Boogie Preprocessor took 39.85 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 76.9 MB in the end (delta: 718.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:40:58,567 INFO L168 Benchmark]: RCFGBuilder took 436.35 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 65.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:58,574 INFO L168 Benchmark]: TraceAbstraction took 527.52 ms. Allocated memory is still 104.9 MB. Free memory was 64.8 MB in the beginning and 52.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:40:58,576 INFO L168 Benchmark]: Witness Printer took 5.81 ms. Allocated memory is still 104.9 MB. Free memory was 52.3 MB in the beginning and 52.0 MB in the end (delta: 300.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:40:58,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 81.0 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.36 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 79.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.86 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.85 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 76.9 MB in the end (delta: 718.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 436.35 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 65.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 527.52 ms. Allocated memory is still 104.9 MB. Free memory was 64.8 MB in the beginning and 52.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.81 ms. Allocated memory is still 104.9 MB. Free memory was 52.3 MB in the beginning and 52.0 MB in the end (delta: 300.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 28]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && result >= -1.001f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 406.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 31.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.1ms SsaConstructionTime, 76.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-10-16 02:40:58,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:41:01,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:41:01,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:41:01,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:41:01,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:41:01,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:41:01,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:41:01,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:41:01,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:41:01,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:41:01,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:41:01,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:41:01,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:41:01,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:41:01,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:41:01,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:41:01,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:41:01,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:41:01,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:41:01,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:41:01,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:41:01,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:41:01,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:41:01,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:41:01,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:41:01,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:41:01,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:41:02,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:41:02,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:41:02,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:41:02,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:41:02,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:41:02,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:41:02,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:41:02,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:41:02,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:41:02,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:41:02,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:41:02,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:41:02,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:41:02,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:41:02,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:41:02,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:41:02,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:41:02,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:41:02,079 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:41:02,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:41:02,079 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:41:02,080 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:41:02,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:41:02,080 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:41:02,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:41:02,084 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:41:02,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:41:02,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:41:02,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:41:02,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:41:02,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:41:02,085 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:41:02,085 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:41:02,086 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:41:02,086 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:41:02,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:41:02,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:41:02,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:41:02,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:41:02,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:41:02,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:41:02,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:41:02,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:41:02,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:41:02,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:41:02,089 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:41:02,089 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:41:02,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:41:02,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:41:02,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:41:02,090 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_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f53d9ed7fe14462ecadf09af148bc11769a4a61 [2021-10-16 02:41:02,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:41:02,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:41:02,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:41:02,636 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:41:02,637 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:41:02,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-16 02:41:02,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/4736947a9/0dd4b2702bda428ebcfccd0b87703c8d/FLAG80949a55f [2021-10-16 02:41:03,495 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:41:03,497 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-16 02:41:03,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/4736947a9/0dd4b2702bda428ebcfccd0b87703c8d/FLAG80949a55f [2021-10-16 02:41:03,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/data/4736947a9/0dd4b2702bda428ebcfccd0b87703c8d [2021-10-16 02:41:03,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:41:03,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:41:03,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:03,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:41:03,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:41:03,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:03" (1/1) ... [2021-10-16 02:41:03,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b4ef02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:03, skipping insertion in model container [2021-10-16 02:41:03,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:03" (1/1) ... [2021-10-16 02:41:03,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:41:03,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:41:04,078 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_845d5252-de2a-44fa-968c-f0951efe1e45/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-16 02:41:04,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:04,108 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:41:04,131 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_845d5252-de2a-44fa-968c-f0951efe1e45/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-16 02:41:04,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:04,169 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:41:04,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04 WrapperNode [2021-10-16 02:41:04,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:04,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:41:04,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:41:04,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:41:04,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:41:04,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:41:04,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:41:04,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:41:04,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:41:04,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:41:04,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:41:04,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:41:04,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (1/1) ... [2021-10-16 02:41:04,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:41:04,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:41:04,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:41:04,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:41:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:41:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:41:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:41:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:41:07,028 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:41:07,029 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 02:41:07,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:07 BoogieIcfgContainer [2021-10-16 02:41:07,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:41:07,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:41:07,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:41:07,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:41:07,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:41:03" (1/3) ... [2021-10-16 02:41:07,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd5e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:07, skipping insertion in model container [2021-10-16 02:41:07,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:04" (2/3) ... [2021-10-16 02:41:07,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dd5e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:07, skipping insertion in model container [2021-10-16 02:41:07,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:07" (3/3) ... [2021-10-16 02:41:07,041 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2021-10-16 02:41:07,048 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:41:07,048 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:41:07,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:41:07,117 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, mConcurrency=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 [2021-10-16 02:41:07,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:41:07,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:41:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:41:07,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:07,138 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:41:07,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:41:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:07,147 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-10-16 02:41:07,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:07,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095350775] [2021-10-16 02:41:07,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:07,164 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:07,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:07,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:07,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:41:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:41:08,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:41:08,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:08,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:08,410 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:41:08,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095350775] [2021-10-16 02:41:08,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095350775] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:08,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:08,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:41:08,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703276415] [2021-10-16 02:41:08,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:41:08,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:41:08,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:41:08,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:41:08,459 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-16 02:41:08,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:08,478 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-16 02:41:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:41:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-16 02:41:08,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:08,492 INFO L225 Difference]: With dead ends: 19 [2021-10-16 02:41:08,493 INFO L226 Difference]: Without dead ends: 7 [2021-10-16 02:41:08,496 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:41:08,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-16 02:41:08,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-16 02:41:08,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2021-10-16 02:41:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-10-16 02:41:08,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-10-16 02:41:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:08,535 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-10-16 02:41:08,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-16 02:41:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-16 02:41:08,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:41:08,537 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:08,537 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:41:08,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:08,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:41:08,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:41:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:08,756 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-10-16 02:41:08,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:41:08,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583858637] [2021-10-16 02:41:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:08,758 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:41:08,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:41:08,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:41:08,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:50:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:50:58,541 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:51:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:51:09,629 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 02:51:09,629 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:51:09,631 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:51:09,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 02:51:09,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:51:09,839 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:51:09,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:51:09 BoogieIcfgContainer [2021-10-16 02:51:09,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:51:09,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:51:09,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:51:09,868 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:51:09,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:07" (3/4) ... [2021-10-16 02:51:09,872 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:51:09,912 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:51:09,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:51:09,915 INFO L168 Benchmark]: Toolchain (without parser) took 606088.04 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 52.6 MB in the beginning and 63.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:09,916 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:09,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.20 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 54.4 MB in the end (delta: -2.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:09,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.53 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 52.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:09,919 INFO L168 Benchmark]: Boogie Preprocessor took 55.90 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 51.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:09,920 INFO L168 Benchmark]: RCFGBuilder took 2714.59 ms. Allocated memory is still 71.3 MB. Free memory was 51.5 MB in the beginning and 42.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:09,921 INFO L168 Benchmark]: TraceAbstraction took 602834.33 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 42.1 MB in the beginning and 65.6 MB in the end (delta: -23.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:09,922 INFO L168 Benchmark]: Witness Printer took 44.38 ms. Allocated memory is still 96.5 MB. Free memory was 65.6 MB in the beginning and 63.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:09,927 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 71.3 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.20 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 54.4 MB in the end (delta: -2.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.53 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 52.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.90 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 51.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2714.59 ms. Allocated memory is still 71.3 MB. Free memory was 51.5 MB in the beginning and 42.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 602834.33 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 42.1 MB in the beginning and 65.6 MB in the end (delta: -23.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. * Witness Printer took 44.38 ms. Allocated memory is still 96.5 MB. Free memory was 65.6 MB in the beginning and 63.9 MB in the end (delta: 1.6 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && result >= -1.001f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 602732.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.3ms, AutomataDifference: 73.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.5ms SsaConstructionTime, 590706.6ms SatisfiabilityAnalysisTime, 220.0ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2021-10-16 02:51:10,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_845d5252-de2a-44fa-968c-f0951efe1e45/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...