./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 .......................................................................................................................................................................................................................................................................................................................... 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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:06:06,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:06:06,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:06:06,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:06:06,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:06:06,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:06:06,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:06:06,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:06:06,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:06:06,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:06:06,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:06:06,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:06:06,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:06:06,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:06:06,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:06:06,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:06:06,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:06:06,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:06:06,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:06:06,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:06:06,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:06:06,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:06:06,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:06:06,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:06:06,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:06:06,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:06:06,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:06:06,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:06:06,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:06:06,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:06:06,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:06:06,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:06:06,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:06:06,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:06:06,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:06:06,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:06:06,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:06:06,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:06:06,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:06:06,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:06:06,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:06:06,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:06:06,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:06:06,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:06:06,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:06:06,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:06:06,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:06:06,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:06:06,636 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:06:06,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:06:06,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:06:06,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:06:06,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:06:06,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:06:06,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:06:06,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:06:06,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:06:06,640 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:06:06,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:06:06,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:06:06,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:06:06,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:06:06,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:06:06,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:06:06,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:06:06,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:06:06,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:06:06,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:06:06,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:06:06,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:06:06,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:06:06,646 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:06:06,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:06:06,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:06:06,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 [2021-10-28 23:06:06,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:06:07,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:06:07,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:06:07,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:06:07,015 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:06:07,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-10-28 23:06:07,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/062530a04/ddf91fc6d91244ddb04a5026895d1e8d/FLAGb0af0c24f [2021-10-28 23:06:07,747 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:06:07,748 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-10-28 23:06:07,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/062530a04/ddf91fc6d91244ddb04a5026895d1e8d/FLAGb0af0c24f [2021-10-28 23:06:08,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/062530a04/ddf91fc6d91244ddb04a5026895d1e8d [2021-10-28 23:06:08,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:06:08,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:06:08,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:06:08,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:06:08,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:06:08,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@317513ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08, skipping insertion in model container [2021-10-28 23:06:08,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:06:08,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:06:08,469 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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-10-28 23:06:08,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:06:08,496 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:06:08,638 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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-10-28 23:06:08,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:06:08,672 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:06:08,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08 WrapperNode [2021-10-28 23:06:08,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:06:08,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:06:08,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:06:08,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:06:08,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:06:08,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:06:08,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:06:08,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:06:08,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:06:08,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:06:08,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:06:08,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:06:08,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (1/1) ... [2021-10-28 23:06:08,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:06:08,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:08,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:08,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:06:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:06:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:06:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 23:06:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:06:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 23:06:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:06:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:06:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:06:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:06:09,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:06:09,883 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-28 23:06:09,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:09 BoogieIcfgContainer [2021-10-28 23:06:09,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:06:09,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:06:09,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:06:09,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:06:09,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:06:08" (1/3) ... [2021-10-28 23:06:09,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2148d393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:06:09, skipping insertion in model container [2021-10-28 23:06:09,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:08" (2/3) ... [2021-10-28 23:06:09,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2148d393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:06:09, skipping insertion in model container [2021-10-28 23:06:09,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:09" (3/3) ... [2021-10-28 23:06:09,899 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2021-10-28 23:06:09,912 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:06:09,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:06:09,972 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:06:09,980 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=PETRI_NET, 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 [2021-10-28 23:06:09,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:06:10,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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) [2021-10-28 23:06:10,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:06:10,011 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:06:10,011 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:10,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:06:10,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:10,019 INFO L85 PathProgramCache]: Analyzing trace with hash 8448415, now seen corresponding path program 1 times [2021-10-28 23:06:10,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:10,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516176029] [2021-10-28 23:06:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:10,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:10,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:10,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516176029] [2021-10-28 23:06:10,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516176029] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:10,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:10,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:06:10,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177795819] [2021-10-28 23:06:10,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:06:10,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:10,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:06:10,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:06:10,337 INFO L87 Difference]: Start difference. First operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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 6.0) internal successors, (12), 2 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) [2021-10-28 23:06:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:10,371 INFO L93 Difference]: Finished difference Result 209 states and 346 transitions. [2021-10-28 23:06:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:06:10,373 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) Word has length 12 [2021-10-28 23:06:10,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:06:10,389 INFO L225 Difference]: With dead ends: 209 [2021-10-28 23:06:10,390 INFO L226 Difference]: Without dead ends: 102 [2021-10-28 23:06:10,394 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 [2021-10-28 23:06:10,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-28 23:06:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-28 23:06:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 101 states have internal predecessors, (147), 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) [2021-10-28 23:06:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2021-10-28 23:06:10,444 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 12 [2021-10-28 23:06:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:06:10,444 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2021-10-28 23:06:10,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-10-28 23:06:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2021-10-28 23:06:10,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:06:10,446 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:06:10,447 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:10,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:06:10,447 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:06:10,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:10,449 INFO L85 PathProgramCache]: Analyzing trace with hash -409380025, now seen corresponding path program 1 times [2021-10-28 23:06:10,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:10,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774619110] [2021-10-28 23:06:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:10,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:10,533 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:10,670 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:10,670 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:06:10,673 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:06:10,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:06:10,681 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:06:10,685 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:06:10,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:06:10 BoogieIcfgContainer [2021-10-28 23:06:10,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:06:10,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:06:10,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:06:10,753 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:06:10,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:09" (3/4) ... [2021-10-28 23:06:10,758 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:06:10,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:06:10,760 INFO L168 Benchmark]: Toolchain (without parser) took 2664.35 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 67.2 MB in the beginning and 75.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:10,761 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory is still 54.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:06:10,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.55 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 67.0 MB in the beginning and 94.0 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:10,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.79 ms. Allocated memory is still 123.7 MB. Free memory was 94.0 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:10,764 INFO L168 Benchmark]: Boogie Preprocessor took 113.81 ms. Allocated memory is still 123.7 MB. Free memory was 90.9 MB in the beginning and 88.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:10,765 INFO L168 Benchmark]: RCFGBuilder took 972.33 ms. Allocated memory is still 123.7 MB. Free memory was 87.8 MB in the beginning and 63.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:10,766 INFO L168 Benchmark]: TraceAbstraction took 860.37 ms. Allocated memory is still 123.7 MB. Free memory was 63.1 MB in the beginning and 76.4 MB in the end (delta: -13.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:06:10,767 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 123.7 MB. Free memory is still 75.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:06:10,771 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 is still 54.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 579.55 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 67.0 MB in the beginning and 94.0 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.79 ms. Allocated memory is still 123.7 MB. Free memory was 94.0 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.81 ms. Allocated memory is still 123.7 MB. Free memory was 90.9 MB in the beginning and 88.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 972.33 ms. Allocated memory is still 123.7 MB. Free memory was 87.8 MB in the beginning and 63.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 860.37 ms. Allocated memory is still 123.7 MB. Free memory was 63.1 MB in the beginning and 76.4 MB in the end (delta: -13.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.44 ms. Allocated memory is still 123.7 MB. Free memory is still 75.7 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: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of bitwiseAnd at line 152, overapproximation of someBinaryArithmeticDOUBLEoperation at line 170, overapproximation of someBinaryDOUBLEComparisonOperation at line 215. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] COND FALSE !(ix >= 0x3ff00000) VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L168] COND TRUE ix < 0x3fe00000 VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L169] COND TRUE ix <= 0x3c600000 [L170] return pio2_hi_acos + pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L227] double res = __ieee754_acos(x); [L215] return x != x; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L230] COND TRUE !isnan_double(res) [L231] reach_error() VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 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: 152 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=106occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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 [2021-10-28 23:06:10,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/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-b2eff8b [2021-10-28 23:06:13,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:06:13,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:06:13,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:06:13,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:06:13,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:06:13,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:06:13,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:06:13,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:06:13,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:06:13,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:06:13,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:06:13,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:06:13,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:06:13,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:06:13,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:06:13,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:06:13,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:06:13,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:06:13,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:06:13,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:06:13,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:06:13,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:06:13,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:06:13,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:06:13,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:06:13,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:06:13,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:06:13,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:06:13,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:06:13,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:06:13,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:06:13,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:06:13,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:06:13,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:06:13,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:06:13,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:06:13,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:06:13,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:06:13,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:06:13,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:06:13,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:06:13,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:06:13,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:06:13,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:06:13,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:06:13,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:06:13,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:06:13,858 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:06:13,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:06:13,859 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:06:13,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:06:13,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:06:13,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:06:13,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:06:13,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:06:13,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:06:13,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:06:13,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:06:13,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:06:13,863 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:06:13,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:06:13,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:06:13,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:06:13,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:06:13,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:06:13,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:06:13,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:06:13,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:06:13,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:06:13,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:06:13,866 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:06:13,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:06:13,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:06:13,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:06:13,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:06:13,868 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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 [2021-10-28 23:06:14,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:06:14,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:06:14,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:06:14,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:06:14,364 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:06:14,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-10-28 23:06:14,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/05ef4a062/456ab9f941a74e598178a1b3deab55af/FLAG025f1940c [2021-10-28 23:06:15,138 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:06:15,139 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-10-28 23:06:15,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/05ef4a062/456ab9f941a74e598178a1b3deab55af/FLAG025f1940c [2021-10-28 23:06:15,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/data/05ef4a062/456ab9f941a74e598178a1b3deab55af [2021-10-28 23:06:15,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:06:15,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:06:15,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:06:15,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:06:15,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:06:15,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:15,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c97e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15, skipping insertion in model container [2021-10-28 23:06:15,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:15,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:06:15,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:06:15,712 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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-10-28 23:06:15,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:06:15,732 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:06:15,867 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_7b18154e-5517-4d1a-925b-c3ed6f9003e9/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2021-10-28 23:06:15,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:06:15,890 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:06:15,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15 WrapperNode [2021-10-28 23:06:15,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:06:15,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:06:15,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:06:15,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:06:15,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:15,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:15,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:06:15,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:06:15,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:06:15,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:06:15,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:15,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:15,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:15,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:16,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:16,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:16,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:16,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:06:16,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:06:16,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:06:16,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:06:16,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (1/1) ... [2021-10-28 23:06:16,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:06:16,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:06:16,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 23:06:16,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 23:06:16,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:06:16,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:06:16,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:06:16,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:06:16,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:06:16,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:06:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:06:40,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:06:40,039 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-28 23:06:40,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:40 BoogieIcfgContainer [2021-10-28 23:06:40,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:06:40,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:06:40,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:06:40,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:06:40,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:06:15" (1/3) ... [2021-10-28 23:06:40,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc10005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:06:40, skipping insertion in model container [2021-10-28 23:06:40,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:15" (2/3) ... [2021-10-28 23:06:40,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc10005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:06:40, skipping insertion in model container [2021-10-28 23:06:40,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:40" (3/3) ... [2021-10-28 23:06:40,053 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2021-10-28 23:06:40,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:06:40,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:06:40,116 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:06:40,124 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=PETRI_NET, 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 [2021-10-28 23:06:40,124 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:06:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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) [2021-10-28 23:06:40,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:06:40,153 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:06:40,154 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:40,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:06:40,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:40,162 INFO L85 PathProgramCache]: Analyzing trace with hash 8448415, now seen corresponding path program 1 times [2021-10-28 23:06:40,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:06:40,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664002344] [2021-10-28 23:06:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:40,179 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:06:40,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:06:40,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:06:40,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:06:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:41,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:06:41,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:41,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:06:41,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:41,884 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:06:41,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664002344] [2021-10-28 23:06:41,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664002344] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:41,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:41,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:06:41,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804419517] [2021-10-28 23:06:41,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:06:41,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:06:41,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:06:41,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:06:41,913 INFO L87 Difference]: Start difference. First operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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 6.0) internal successors, (12), 2 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) [2021-10-28 23:06:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:41,949 INFO L93 Difference]: Finished difference Result 209 states and 346 transitions. [2021-10-28 23:06:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:06:41,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) Word has length 12 [2021-10-28 23:06:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:06:41,964 INFO L225 Difference]: With dead ends: 209 [2021-10-28 23:06:41,964 INFO L226 Difference]: Without dead ends: 102 [2021-10-28 23:06:41,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:06:41,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-28 23:06:42,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-28 23:06:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 101 states have internal predecessors, (147), 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) [2021-10-28 23:06:42,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2021-10-28 23:06:42,041 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 12 [2021-10-28 23:06:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:06:42,042 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2021-10-28 23:06:42,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-10-28 23:06:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2021-10-28 23:06:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:06:42,046 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:06:42,047 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:42,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:42,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:06:42,262 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:06:42,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash -409380025, now seen corresponding path program 1 times [2021-10-28 23:06:42,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:06:42,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284168572] [2021-10-28 23:06:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:42,265 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:06:42,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:06:42,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:06:42,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:06:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:42,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:06:42,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:47,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:47,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:06:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:53,827 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:06:53,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284168572] [2021-10-28 23:06:53,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284168572] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:53,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:53,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 23:06:53,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435178184] [2021-10-28 23:06:53,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:06:53,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:06:53,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:06:53,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=37, Unknown=3, NotChecked=0, Total=56 [2021-10-28 23:06:53,832 INFO L87 Difference]: Start difference. First operand 102 states and 147 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-28 23:07:01,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:01,838 INFO L93 Difference]: Finished difference Result 107 states and 151 transitions. [2021-10-28 23:07:01,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:07:01,860 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 23:07:01,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:01,861 INFO L225 Difference]: With dead ends: 107 [2021-10-28 23:07:01,861 INFO L226 Difference]: Without dead ends: 16 [2021-10-28 23:07:01,863 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=31, Invalid=56, Unknown=3, NotChecked=0, Total=90 [2021-10-28 23:07:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-28 23:07:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 23:07:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 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) [2021-10-28 23:07:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-28 23:07:01,868 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2021-10-28 23:07:01,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:01,868 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-28 23:07:01,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-28 23:07:01,869 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-28 23:07:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:07:01,869 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:01,869 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:01,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:02,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:02,070 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:07:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1384827201, now seen corresponding path program 1 times [2021-10-28 23:07:02,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:02,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626330950] [2021-10-28 23:07:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:02,073 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:02,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:02,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:02,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:07:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:03,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:07:03,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:22,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:34,587 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-28 23:07:34,588 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:34,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626330950] [2021-10-28 23:07:34,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-28 23:07:34,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [677279889] [2021-10-28 23:07:34,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:34,590 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:07:34,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:07:34,594 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:07:34,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-28 23:07:34,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-28 23:07:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:38,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:07:38,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@237ed494 [2021-10-28 23:07:38,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286366678] [2021-10-28 23:07:38,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:38,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:07:38,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:07:38,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:07:38,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:07:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:40,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:07:40,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@237ed494 [2021-10-28 23:07:40,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:40,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:07:40,413 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:07:40,413 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:07:40,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:07:40,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:40,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:40,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:41,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b18154e-5517-4d1a-925b-c3ed6f9003e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:07:41,049 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 23:07:41,052 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:07:41,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:07:41 BoogieIcfgContainer [2021-10-28 23:07:41,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:07:41,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:07:41,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:07:41,076 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:07:41,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:40" (3/4) ... [2021-10-28 23:07:41,084 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:07:41,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:07:41,087 INFO L168 Benchmark]: Toolchain (without parser) took 85673.15 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 42.4 MB in the beginning and 48.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:41,088 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:07:41,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.55 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 42.6 MB in the end (delta: -416.6 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:41,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.63 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 39.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:41,097 INFO L168 Benchmark]: Boogie Preprocessor took 69.83 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 36.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:41,098 INFO L168 Benchmark]: RCFGBuilder took 23997.85 ms. Allocated memory is still 62.9 MB. Free memory was 36.5 MB in the beginning and 31.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:41,099 INFO L168 Benchmark]: TraceAbstraction took 61030.26 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 31.5 MB in the beginning and 49.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:07:41,100 INFO L168 Benchmark]: Witness Printer took 9.07 ms. Allocated memory is still 81.8 MB. Free memory was 49.3 MB in the beginning and 48.7 MB in the end (delta: 586.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:07:41,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.55 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 42.6 MB in the end (delta: -416.6 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.63 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 39.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.83 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 36.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 23997.85 ms. Allocated memory is still 62.9 MB. Free memory was 36.5 MB in the beginning and 31.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 61030.26 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 31.5 MB in the beginning and 49.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. * Witness Printer took 9.07 ms. Allocated memory is still 81.8 MB. Free memory was 49.3 MB in the beginning and 48.7 MB in the end (delta: 586.6 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, 0.0s 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: 231]: 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: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff [L153] COND TRUE ix >= 0x3ff00000 [L154] __uint32_t lx; [L156] ieee_double_shape_type gl_u; [L157] gl_u.value = (x) [L158] EXPR gl_u.parts.lsw [L158] (lx) = gl_u.parts.lsw [L160] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L166] return (x - x) / (x - x); [L227] double res = __ieee754_acos(x); [L215] return x != x; [L230] COND TRUE !isnan_double(res) [L231] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 63 SDslu, 10 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 43.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 59 ConstructedInterpolants, 6 QuantifiedInterpolants, 228 SizeOfPredicates, 16 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 Received shutdown request...