./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:41:15,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:41:15,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:41:15,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:41:15,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:41:15,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:41:15,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:41:15,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:41:15,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:41:15,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:41:15,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:41:15,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:41:15,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:41:15,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:41:15,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:41:15,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:41:15,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:41:15,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:41:15,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:41:15,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:41:15,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:41:15,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:41:15,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:41:15,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:41:15,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:41:15,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:41:15,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:41:15,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:41:15,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:41:15,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:41:15,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:41:15,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:41:15,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:41:15,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:41:15,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:41:15,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:41:15,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:41:15,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:41:15,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:41:15,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:41:15,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:41:15,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:41:15,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:41:15,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:41:15,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:41:15,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:41:15,732 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:41:15,732 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:41:15,733 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:41:15,733 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:41:15,739 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:41:15,739 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:41:15,741 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:41:15,741 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:41:15,741 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:41:15,742 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:41:15,742 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:41:15,742 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:41:15,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:41:15,743 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:41:15,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:41:15,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:41:15,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:41:15,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:41:15,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:41:15,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:41:15,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:41:15,745 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:41:15,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:41:15,746 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:41:15,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:41:15,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:41:15,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:41:15,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:15,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:41:15,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:41:15,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:41:15,750 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:41:15,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:41:15,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:41:15,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:41:15,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:41:15,751 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 [2021-11-13 01:41:16,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:41:16,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:41:16,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:41:16,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:41:16,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:41:16,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-11-13 01:41:16,177 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/fecf54ad1/bb37f6c6e90345d6a89c1d5d6225cf4b/FLAG51476f9df [2021-11-13 01:41:16,751 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:41:16,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-11-13 01:41:16,768 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/fecf54ad1/bb37f6c6e90345d6a89c1d5d6225cf4b/FLAG51476f9df [2021-11-13 01:41:17,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/fecf54ad1/bb37f6c6e90345d6a89c1d5d6225cf4b [2021-11-13 01:41:17,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:41:17,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:41:17,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:17,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:41:17,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:41:17,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a70f72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17, skipping insertion in model container [2021-11-13 01:41:17,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:41:17,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:41:17,492 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_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2021-11-13 01:41:17,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:17,505 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:41:17,595 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_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2021-11-13 01:41:17,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:17,621 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:41:17,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17 WrapperNode [2021-11-13 01:41:17,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:17,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:41:17,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:41:17,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:41:17,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:41:17,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:41:17,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:41:17,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:41:17,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:41:17,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:41:17,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:41:17,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:41:17,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (1/1) ... [2021-11-13 01:41:17,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:17,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:17,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:41:17,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:41:17,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:41:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:41:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 01:41:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:41:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2021-11-13 01:41:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2021-11-13 01:41:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-13 01:41:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:41:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:41:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:41:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:41:18,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:41:18,770 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-13 01:41:18,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:18 BoogieIcfgContainer [2021-11-13 01:41:18,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:41:18,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:41:18,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:41:18,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:41:18,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:41:17" (1/3) ... [2021-11-13 01:41:18,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1022a6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:18, skipping insertion in model container [2021-11-13 01:41:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:17" (2/3) ... [2021-11-13 01:41:18,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1022a6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:18, skipping insertion in model container [2021-11-13 01:41:18,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:18" (3/3) ... [2021-11-13 01:41:18,782 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480.c [2021-11-13 01:41:18,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:41:18,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:41:18,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:41:18,857 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:41:18,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:41:18,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 42 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:41:18,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:41:18,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:18,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:18,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:18,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash -12731219, now seen corresponding path program 1 times [2021-11-13 01:41:18,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:18,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182361326] [2021-11-13 01:41:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:18,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:19,096 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:41:19,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182361326] [2021-11-13 01:41:19,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182361326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:19,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:19,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:41:19,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106413187] [2021-11-13 01:41:19,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:19,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:41:19,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:41:19,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:41:19,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:41:19,148 INFO L87 Difference]: Start difference. First operand has 46 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 42 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:19,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:19,251 INFO L93 Difference]: Finished difference Result 91 states and 145 transitions. [2021-11-13 01:41:19,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:41:19,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 01:41:19,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:19,263 INFO L225 Difference]: With dead ends: 91 [2021-11-13 01:41:19,263 INFO L226 Difference]: Without dead ends: 44 [2021-11-13 01:41:19,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:41:19,273 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.95ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:19,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 13 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 63.95ms Time] [2021-11-13 01:41:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-13 01:41:19,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-13 01:41:19,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:41:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2021-11-13 01:41:19,326 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 9 [2021-11-13 01:41:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:19,327 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2021-11-13 01:41:19,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2021-11-13 01:41:19,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:41:19,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:19,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:19,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:41:19,329 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:19,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:19,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2132519586, now seen corresponding path program 1 times [2021-11-13 01:41:19,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:41:19,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944157798] [2021-11-13 01:41:19,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:19,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:41:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:41:19,393 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:41:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:41:19,499 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:41:19,500 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:41:19,502 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:41:19,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:41:19,508 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:41:19,510 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:41:19,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:41:19 BoogieIcfgContainer [2021-11-13 01:41:19,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:41:19,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:41:19,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:41:19,571 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:41:19,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:18" (3/4) ... [2021-11-13 01:41:19,575 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:41:19,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:41:19,577 INFO L158 Benchmark]: Toolchain (without parser) took 2503.34ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.3MB in the beginning and 75.9MB in the end (delta: -23.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:41:19,577 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 68.6MB in the beginning and 68.5MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:41:19,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.95ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.1MB in the beginning and 78.2MB in the end (delta: -26.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-13 01:41:19,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.84ms. Allocated memory is still 107.0MB. Free memory was 78.2MB in the beginning and 76.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:41:19,584 INFO L158 Benchmark]: Boogie Preprocessor took 73.52ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 74.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:41:19,585 INFO L158 Benchmark]: RCFGBuilder took 1003.68ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 73.1MB in the end (delta: 596.9kB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-11-13 01:41:19,585 INFO L158 Benchmark]: TraceAbstraction took 796.13ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 76.1MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:41:19,586 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 107.0MB. Free memory was 76.1MB in the beginning and 75.9MB in the end (delta: 160.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:41:19,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 68.6MB in the beginning and 68.5MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.95ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.1MB in the beginning and 78.2MB in the end (delta: -26.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.84ms. Allocated memory is still 107.0MB. Free memory was 78.2MB in the beginning and 76.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.52ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 74.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1003.68ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 73.1MB in the end (delta: 596.9kB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 796.13ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 76.1MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 107.0MB. Free memory was 76.1MB in the beginning and 75.9MB in the end (delta: 160.7kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 239]: 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 147, overapproximation of bitwiseAnd at line 165, overapproximation of someBinaryArithmeticDOUBLEoperation at line 183, overapproximation of someBinaryDOUBLEComparisonOperation at line 238. Possible FailurePath: [L30] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L142-L155] 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; [L234] double x = 1.0; [L235] CALL, EXPR __ieee754_acos(x) [L158] double z, p, q, r, w, s, c, df; [L159] __int32_t hx, ix; VAL [\old(x)=1, 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, x=1] [L161] ieee_double_shape_type gh_u; [L162] gh_u.value = (x) [L163] EXPR gh_u.parts.msw [L163] (hx) = gh_u.parts.msw [L165] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, 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, x=1] [L166] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=1, hx=0, ix=0, 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, x=1] [L181] COND TRUE ix < 0x3fe00000 [L182] COND TRUE ix <= 0x3c600000 [L183] return pio2_hi_acos + pio2_lo_acos; VAL [\old(x)=1, hx=0, ix=0, one_acos=1, one_sqrt=1, p=49, 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, q=53, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, r=52, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1, z=51] [L235] RET, EXPR __ieee754_acos(x) [L235] double res = __ieee754_acos(x); [L238] EXPR res == 0.0 && __signbit_double(res) == 0 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, res=50, res == 0.0 && __signbit_double(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L238] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L239] reach_error() 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, res=50, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 63.95ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 57.30ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 13 mSolverCounterSat, 1.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 01:41:19,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:41:21,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:41:21,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:41:21,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:41:21,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:41:21,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:41:21,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:41:21,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:41:21,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:41:21,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:41:21,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:41:21,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:41:21,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:41:21,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:41:21,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:41:21,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:41:21,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:41:21,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:41:21,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:41:21,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:41:21,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:41:21,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:41:21,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:41:21,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:41:21,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:41:22,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:41:22,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:41:22,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:41:22,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:41:22,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:41:22,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:41:22,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:41:22,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:41:22,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:41:22,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:41:22,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:41:22,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:41:22,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:41:22,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:41:22,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:41:22,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:41:22,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:41:22,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:41:22,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:41:22,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:41:22,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:41:22,047 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:41:22,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:41:22,048 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:41:22,048 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:41:22,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:41:22,048 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:41:22,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:41:22,049 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:41:22,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:41:22,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:41:22,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:41:22,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:41:22,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:41:22,052 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:41:22,052 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:41:22,052 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:41:22,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:41:22,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:41:22,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:41:22,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:41:22,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:41:22,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:41:22,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:41:22,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:22,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:41:22,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:41:22,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:41:22,056 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:41:22,056 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:41:22,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:41:22,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:41:22,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:41:22,058 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_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 [2021-11-13 01:41:22,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:41:22,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:41:22,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:41:22,437 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:41:22,438 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:41:22,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-11-13 01:41:22,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/3c93c41ce/ac8cecdd2bff4cd2b535d9bf53ee5b0f/FLAGc28d514c5 [2021-11-13 01:41:23,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:41:23,114 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-11-13 01:41:23,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/3c93c41ce/ac8cecdd2bff4cd2b535d9bf53ee5b0f/FLAGc28d514c5 [2021-11-13 01:41:23,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/data/3c93c41ce/ac8cecdd2bff4cd2b535d9bf53ee5b0f [2021-11-13 01:41:23,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:41:23,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:41:23,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:23,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:41:23,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:41:23,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a399bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23, skipping insertion in model container [2021-11-13 01:41:23,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:41:23,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:41:23,689 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_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2021-11-13 01:41:23,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:23,752 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:41:23,849 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_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2021-11-13 01:41:23,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:41:23,882 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:41:23,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23 WrapperNode [2021-11-13 01:41:23,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:41:23,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:41:23,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:41:23,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:41:23,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:41:23,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:41:23,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:41:23,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:41:23,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:41:23,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:41:23,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:41:23,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:41:23,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (1/1) ... [2021-11-13 01:41:23,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:24,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:41:24,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:41:24,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:41:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-13 01:41:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-13 01:41:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:41:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:41:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2021-11-13 01:41:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2021-11-13 01:41:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:41:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:41:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:41:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:41:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:41:42,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:41:42,333 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-13 01:41:42,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:42 BoogieIcfgContainer [2021-11-13 01:41:42,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:41:42,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:41:42,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:41:42,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:41:42,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:41:23" (1/3) ... [2021-11-13 01:41:42,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b5dd7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:42, skipping insertion in model container [2021-11-13 01:41:42,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:41:23" (2/3) ... [2021-11-13 01:41:42,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b5dd7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:41:42, skipping insertion in model container [2021-11-13 01:41:42,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:42" (3/3) ... [2021-11-13 01:41:42,354 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480.c [2021-11-13 01:41:42,360 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:41:42,361 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:41:42,410 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:41:42,417 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:41:42,418 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:41:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 69 states have (on average 1.6521739130434783) internal successors, (114), 70 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:41:42,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:41:42,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:42,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:42,442 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:42,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:42,447 INFO L85 PathProgramCache]: Analyzing trace with hash 807618303, now seen corresponding path program 1 times [2021-11-13 01:41:42,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:42,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873026242] [2021-11-13 01:41:42,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:42,462 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:42,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:42,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:42,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:41:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:43,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:41:43,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:43,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:43,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:44,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:44,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873026242] [2021-11-13 01:41:44,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873026242] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:44,147 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:44,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:41:44,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514881683] [2021-11-13 01:41:44,150 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:44,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:41:44,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:44,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:41:44,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:41:44,208 INFO L87 Difference]: Start difference. First operand has 74 states, 69 states have (on average 1.6521739130434783) internal successors, (114), 70 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:44,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:44,238 INFO L93 Difference]: Finished difference Result 146 states and 236 transitions. [2021-11-13 01:41:44,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:41:44,240 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-11-13 01:41:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:44,249 INFO L225 Difference]: With dead ends: 146 [2021-11-13 01:41:44,249 INFO L226 Difference]: Without dead ends: 71 [2021-11-13 01:41:44,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:41:44,257 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:44,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.61ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:41:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-13 01:41:44,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-13 01:41:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 67 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:41:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 98 transitions. [2021-11-13 01:41:44,303 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 98 transitions. Word has length 11 [2021-11-13 01:41:44,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:44,303 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 98 transitions. [2021-11-13 01:41:44,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 98 transitions. [2021-11-13 01:41:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 01:41:44,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:44,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:44,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:44,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:44,522 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:44,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1074834118, now seen corresponding path program 1 times [2021-11-13 01:41:44,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:44,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067406266] [2021-11-13 01:41:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:44,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:44,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:44,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:44,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:41:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:44,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:41:44,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:46,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:48,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:48,421 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:48,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067406266] [2021-11-13 01:41:48,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067406266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:41:48,422 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:41:48,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:41:48,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935712014] [2021-11-13 01:41:48,423 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:48,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:41:48,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:48,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:41:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:48,426 INFO L87 Difference]: Start difference. First operand 71 states and 98 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2021-11-13 01:41:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:50,569 INFO L93 Difference]: Finished difference Result 89 states and 116 transitions. [2021-11-13 01:41:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:41:50,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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) Word has length 12 [2021-11-13 01:41:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:50,589 INFO L225 Difference]: With dead ends: 89 [2021-11-13 01:41:50,589 INFO L226 Difference]: Without dead ends: 28 [2021-11-13 01:41:50,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:50,592 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 11 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1948.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.96ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 2125.05ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:50,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 122 Invalid, 12 Unknown, 0 Unchecked, 1.96ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 6 Unchecked, 2125.05ms Time] [2021-11-13 01:41:50,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-13 01:41:50,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 19. [2021-11-13 01:41:50,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:41:50,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-13 01:41:50,598 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2021-11-13 01:41:50,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:50,599 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-13 01:41:50,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2021-11-13 01:41:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-13 01:41:50,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 01:41:50,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:50,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:50,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:50,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:50,816 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:50,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1734297343, now seen corresponding path program 1 times [2021-11-13 01:41:50,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:50,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101513285] [2021-11-13 01:41:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:50,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:50,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:50,820 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:50,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:41:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:51,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 01:41:51,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:52,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-13 01:41:55,786 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:41:55,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-11-13 01:41:56,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-11-13 01:41:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:41:58,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:00,770 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:42:00,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 61 [2021-11-13 01:42:00,990 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:42:00,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 63 [2021-11-13 01:42:01,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2021-11-13 01:42:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:03,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:03,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101513285] [2021-11-13 01:42:03,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101513285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:03,320 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:03,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 01:42:03,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045243069] [2021-11-13 01:42:03,320 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:03,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 01:42:03,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:03,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 01:42:03,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:42:03,322 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:03,465 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-11-13 01:42:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:42:03,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-13 01:42:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:03,469 INFO L225 Difference]: With dead ends: 28 [2021-11-13 01:42:03,469 INFO L226 Difference]: Without dead ends: 19 [2021-11-13 01:42:03,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:42:03,475 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 25.83ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:03,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 72 Invalid, 27 Unknown, 0 Unchecked, 1.37ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 26 Unchecked, 25.83ms Time] [2021-11-13 01:42:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-13 01:42:03,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-13 01:42:03,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:03,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-13 01:42:03,482 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2021-11-13 01:42:03,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:03,483 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-13 01:42:03,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:03,483 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-13 01:42:03,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 01:42:03,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:03,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:03,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:03,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:03,698 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:42:03,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:03,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1833412902, now seen corresponding path program 1 times [2021-11-13 01:42:03,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:03,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072945078] [2021-11-13 01:42:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:03,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:03,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:03,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:03,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:42:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:03,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:42:03,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:04,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:04,761 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:04,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072945078] [2021-11-13 01:42:04,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072945078] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:04,761 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:04,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 01:42:04,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520048458] [2021-11-13 01:42:04,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:04,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:42:04,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:04,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:42:04,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:42:04,764 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:06,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:06,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:06,612 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-11-13 01:42:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:42:06,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-13 01:42:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:06,613 INFO L225 Difference]: With dead ends: 31 [2021-11-13 01:42:06,613 INFO L226 Difference]: Without dead ends: 28 [2021-11-13 01:42:06,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:42:06,615 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1614.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1636.92ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:06,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 48 Invalid, 12 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 1636.92ms Time] [2021-11-13 01:42:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-13 01:42:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2021-11-13 01:42:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-13 01:42:06,622 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2021-11-13 01:42:06,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:06,622 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-13 01:42:06,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:06,623 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-13 01:42:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 01:42:06,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:06,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:06,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-13 01:42:06,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:06,840 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:42:06,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1835259944, now seen corresponding path program 1 times [2021-11-13 01:42:06,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:06,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613870809] [2021-11-13 01:42:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:06,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:06,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:06,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:06,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:42:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:07,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:42:07,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:08,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:10,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:10,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613870809] [2021-11-13 01:42:10,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613870809] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:10,021 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:10,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 01:42:10,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697958215] [2021-11-13 01:42:10,021 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:10,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:42:10,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:10,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:42:10,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:42:10,023 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:10,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:10,062 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-11-13 01:42:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:42:10,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-13 01:42:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:10,063 INFO L225 Difference]: With dead ends: 28 [2021-11-13 01:42:10,064 INFO L226 Difference]: Without dead ends: 19 [2021-11-13 01:42:10,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:42:10,065 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 35.49ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:10,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 7 Unknown, 0 Unchecked, 0.54ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 6 Unchecked, 35.49ms Time] [2021-11-13 01:42:10,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-13 01:42:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-13 01:42:10,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 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) [2021-11-13 01:42:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-11-13 01:42:10,069 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2021-11-13 01:42:10,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:10,070 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-11-13 01:42:10,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:10,070 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-11-13 01:42:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 01:42:10,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:10,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:10,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:10,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:10,278 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:42:10,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:10,278 INFO L85 PathProgramCache]: Analyzing trace with hash 550496059, now seen corresponding path program 1 times [2021-11-13 01:42:10,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:10,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227298053] [2021-11-13 01:42:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:10,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:10,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:10,280 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:10,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:42:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:10,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 01:42:10,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:12,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:15,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:15,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:15,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227298053] [2021-11-13 01:42:15,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227298053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:15,264 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:15,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-13 01:42:15,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62164158] [2021-11-13 01:42:15,265 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:15,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:42:15,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:15,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:42:15,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:42:15,267 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:17,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:17,262 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-11-13 01:42:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:42:17,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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 18 [2021-11-13 01:42:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:17,263 INFO L225 Difference]: With dead ends: 19 [2021-11-13 01:42:17,263 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:42:17,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:42:17,265 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 358.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 360.57ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:17,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 87 Invalid, 24 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 10 Unchecked, 360.57ms Time] [2021-11-13 01:42:17,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:42:17,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:42:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:42:17,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-11-13 01:42:17,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:17,267 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:42:17,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:42:17,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:42:17,270 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:42:17,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:17,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:17,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:42:19,606 INFO L861 garLoopResultBuilder]: At program point __ieee754_sqrtENTRY(lines 32 140) the Hoare annotation is: true [2021-11-13 01:42:19,606 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtFINAL(lines 32 140) no Hoare annotation was computed. [2021-11-13 01:42:19,606 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 53) no Hoare annotation was computed. [2021-11-13 01:42:19,606 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 104) no Hoare annotation was computed. [2021-11-13 01:42:19,606 INFO L858 garLoopResultBuilder]: For program point L103-2(lines 103 104) no Hoare annotation was computed. [2021-11-13 01:42:19,607 INFO L861 garLoopResultBuilder]: At program point L95-2(lines 95 111) the Hoare annotation is: true [2021-11-13 01:42:19,607 INFO L858 garLoopResultBuilder]: For program point L95-3(lines 32 140) no Hoare annotation was computed. [2021-11-13 01:42:19,607 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2021-11-13 01:42:19,607 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2021-11-13 01:42:19,607 INFO L858 garLoopResultBuilder]: For program point L38-1(lines 38 43) no Hoare annotation was computed. [2021-11-13 01:42:19,607 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 74) no Hoare annotation was computed. [2021-11-13 01:42:19,608 INFO L861 garLoopResultBuilder]: At program point L38-2(lines 38 43) the Hoare annotation is: true [2021-11-13 01:42:19,608 INFO L858 garLoopResultBuilder]: For program point L38-3(lines 32 140) no Hoare annotation was computed. [2021-11-13 01:42:19,608 INFO L858 garLoopResultBuilder]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2021-11-13 01:42:19,608 INFO L861 garLoopResultBuilder]: At program point L63-3(lines 63 64) the Hoare annotation is: true [2021-11-13 01:42:19,608 INFO L858 garLoopResultBuilder]: For program point L63-4(lines 63 64) no Hoare annotation was computed. [2021-11-13 01:42:19,611 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2021-11-13 01:42:19,612 INFO L858 garLoopResultBuilder]: For program point L121-2(lines 121 122) no Hoare annotation was computed. [2021-11-13 01:42:19,612 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 127) no Hoare annotation was computed. [2021-11-13 01:42:19,612 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 131) no Hoare annotation was computed. [2021-11-13 01:42:19,612 INFO L858 garLoopResultBuilder]: For program point L130-2(lines 130 131) no Hoare annotation was computed. [2021-11-13 01:42:19,613 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 107) no Hoare annotation was computed. [2021-11-13 01:42:19,613 INFO L858 garLoopResultBuilder]: For program point L98-2(lines 98 107) no Hoare annotation was computed. [2021-11-13 01:42:19,613 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtEXIT(lines 32 140) no Hoare annotation was computed. [2021-11-13 01:42:19,613 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 68) no Hoare annotation was computed. [2021-11-13 01:42:19,614 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 68) no Hoare annotation was computed. [2021-11-13 01:42:19,614 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 126) no Hoare annotation was computed. [2021-11-13 01:42:19,614 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 54) no Hoare annotation was computed. [2021-11-13 01:42:19,614 INFO L861 garLoopResultBuilder]: At program point L82-2(lines 82 92) the Hoare annotation is: true [2021-11-13 01:42:19,614 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 54) no Hoare annotation was computed. [2021-11-13 01:42:19,615 INFO L858 garLoopResultBuilder]: For program point L82-3(lines 82 92) no Hoare annotation was computed. [2021-11-13 01:42:19,615 INFO L861 garLoopResultBuilder]: At program point L58-2(lines 58 62) the Hoare annotation is: true [2021-11-13 01:42:19,615 INFO L858 garLoopResultBuilder]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2021-11-13 01:42:19,615 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-11-13 01:42:19,615 INFO L858 garLoopResultBuilder]: For program point L100(lines 100 101) no Hoare annotation was computed. [2021-11-13 01:42:19,616 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 133 138) no Hoare annotation was computed. [2021-11-13 01:42:19,616 INFO L861 garLoopResultBuilder]: At program point L133-2(lines 133 138) the Hoare annotation is: true [2021-11-13 01:42:19,616 INFO L858 garLoopResultBuilder]: For program point L100-2(lines 100 101) no Hoare annotation was computed. [2021-11-13 01:42:19,616 INFO L858 garLoopResultBuilder]: For program point L133-3(lines 133 138) no Hoare annotation was computed. [2021-11-13 01:42:19,616 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 125) no Hoare annotation was computed. [2021-11-13 01:42:19,617 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 88) no Hoare annotation was computed. [2021-11-13 01:42:19,617 INFO L858 garLoopResultBuilder]: For program point L84-2(lines 84 88) no Hoare annotation was computed. [2021-11-13 01:42:19,617 INFO L854 garLoopResultBuilder]: At program point L27(lines 18 28) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19#1| (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|) (= (bvor (bvadd |ULTIMATE.start___ieee754_acos_~ix~0#1| (_ bv3222274048 32)) |ULTIMATE.start___ieee754_acos_~lx~0#1|) (_ bv0 32))) [2021-11-13 01:42:19,617 INFO L858 garLoopResultBuilder]: For program point L209-1(lines 209 214) no Hoare annotation was computed. [2021-11-13 01:42:19,618 INFO L854 garLoopResultBuilder]: At program point L209-2(lines 209 214) the Hoare annotation is: false [2021-11-13 01:42:19,618 INFO L858 garLoopResultBuilder]: For program point L209-3(lines 209 214) no Hoare annotation was computed. [2021-11-13 01:42:19,618 INFO L858 garLoopResultBuilder]: For program point L238(line 238) no Hoare annotation was computed. [2021-11-13 01:42:19,618 INFO L858 garLoopResultBuilder]: For program point L238-2(lines 238 241) no Hoare annotation was computed. [2021-11-13 01:42:19,618 INFO L854 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: false [2021-11-13 01:42:19,619 INFO L858 garLoopResultBuilder]: For program point L201-1(line 201) no Hoare annotation was computed. [2021-11-13 01:42:19,619 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 168 172) no Hoare annotation was computed. [2021-11-13 01:42:19,619 INFO L854 garLoopResultBuilder]: At program point L168-2(lines 168 172) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_12| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8| (_ BitVec 32))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8|))) (let ((.cse0 (select .cse1 (_ bv4 32)))) (and (= |ULTIMATE.start___ieee754_acos_~x#1| (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_12|))) (= (bvand (_ bv2147483647 32) .cse0) |ULTIMATE.start___ieee754_acos_~ix~0#1|) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_12|) .cse0) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_12|) (select .cse1 (_ bv0 32))))))) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|) |ULTIMATE.start___ieee754_acos_~hx~0#1|))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acos_~x#1| ((_ to_fp 11 53) currentRoundingMode 1.0)))) [2021-11-13 01:42:19,619 INFO L858 garLoopResultBuilder]: For program point L168-3(lines 166 180) no Hoare annotation was computed. [2021-11-13 01:42:19,619 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 225) no Hoare annotation was computed. [2021-11-13 01:42:19,619 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 01:42:19,620 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 160 164) no Hoare annotation was computed. [2021-11-13 01:42:19,620 INFO L854 garLoopResultBuilder]: At program point L160-2(lines 160 164) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acos_~x#1| ((_ to_fp 11 53) currentRoundingMode 1.0))) [2021-11-13 01:42:19,620 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:42:19,620 INFO L858 garLoopResultBuilder]: For program point L160-3(lines 160 164) no Hoare annotation was computed. [2021-11-13 01:42:19,620 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:42:19,621 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 239) no Hoare annotation was computed. [2021-11-13 01:42:19,621 INFO L858 garLoopResultBuilder]: For program point L181(lines 181 225) no Hoare annotation was computed. [2021-11-13 01:42:19,621 INFO L861 garLoopResultBuilder]: At program point L243(lines 228 244) the Hoare annotation is: true [2021-11-13 01:42:19,621 INFO L858 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2021-11-13 01:42:19,621 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:42:19,622 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 183) no Hoare annotation was computed. [2021-11-13 01:42:19,622 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-13 01:42:19,622 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 11 53)) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_acos_#res#1|) (= (bvor (bvadd |ULTIMATE.start___ieee754_acos_~ix~0#1| (_ bv3222274048 32)) |ULTIMATE.start___ieee754_acos_~lx~0#1|) (_ bv0 32)) (= (_ +zero 11 53) |ULTIMATE.start___signbit_double_~x#1|)) [2021-11-13 01:42:19,622 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-11-13 01:42:19,622 INFO L854 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: false [2021-11-13 01:42:19,623 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 177) no Hoare annotation was computed. [2021-11-13 01:42:19,623 INFO L858 garLoopResultBuilder]: For program point L207-1(line 207) no Hoare annotation was computed. [2021-11-13 01:42:19,623 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 180) no Hoare annotation was computed. [2021-11-13 01:42:19,623 INFO L854 garLoopResultBuilder]: At program point L224(lines 157 226) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start___ieee754_acos_#res#1|) (= (bvor (bvadd |ULTIMATE.start___ieee754_acos_~ix~0#1| (_ bv3222274048 32)) |ULTIMATE.start___ieee754_acos_~lx~0#1|) (_ bv0 32))) [2021-11-13 01:42:19,627 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-13 01:42:19,628 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:42:19,643 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,643 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,644 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,644 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,644 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,644 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,646 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,648 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,649 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,649 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,649 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,649 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,649 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,650 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,650 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,650 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,650 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,650 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,651 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,651 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,651 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,652 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,653 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:42:19 BoogieIcfgContainer [2021-11-13 01:42:19,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:42:19,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:42:19,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:42:19,655 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:42:19,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:41:42" (3/4) ... [2021-11-13 01:42:19,658 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:42:19,665 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2021-11-13 01:42:19,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2021-11-13 01:42:19,682 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 01:42:19,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 01:42:19,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:42:19,707 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) [2021-11-13 01:42:19,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_skolemized_q#valueAsBitvector_12 : bv64, v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8 : bv32 :: ((x == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_12[63:63], v_skolemized_q#valueAsBitvector_12[62:52], v_skolemized_q#valueAsBitvector_12[51:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) == ix) && v_skolemized_q#valueAsBitvector_12[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) && v_skolemized_q#valueAsBitvector_12[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][0bv32]) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64, currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && v_skolemized_q#valueAsBitvector_14[63:32] == hx)) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) [2021-11-13 01:42:19,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == \result && ~bvor32(~bvadd64(ix, 3222274048bv32), lx) == 0bv32 [2021-11-13 01:42:19,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~bvor32(~bvadd64(ix, 3222274048bv32), lx) == 0bv32) && ~Pluszero~LONGDOUBLE() == x [2021-11-13 01:42:19,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result) && ~bvor32(~bvadd64(ix, 3222274048bv32), lx) == 0bv32 [2021-11-13 01:42:19,752 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:42:19,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:42:19,753 INFO L158 Benchmark]: Toolchain (without parser) took 56339.24ms. Allocated memory was 58.7MB in the beginning and 90.2MB in the end (delta: 31.5MB). Free memory was 39.2MB in the beginning and 63.3MB in the end (delta: -24.1MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2021-11-13 01:42:19,753 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:19,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.63ms. Allocated memory is still 58.7MB. Free memory was 39.0MB in the beginning and 38.4MB in the end (delta: 620.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:42:19,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.52ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 35.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:19,755 INFO L158 Benchmark]: Boogie Preprocessor took 48.55ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 33.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:42:19,755 INFO L158 Benchmark]: RCFGBuilder took 18349.70ms. Allocated memory was 58.7MB in the beginning and 90.2MB in the end (delta: 31.5MB). Free memory was 33.3MB in the beginning and 61.2MB in the end (delta: -28.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 01:42:19,755 INFO L158 Benchmark]: TraceAbstraction took 37316.44ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 34.0MB in the end (delta: 26.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-11-13 01:42:19,756 INFO L158 Benchmark]: Witness Printer took 97.60ms. Allocated memory is still 90.2MB. Free memory was 34.0MB in the beginning and 63.3MB in the end (delta: -29.2MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-11-13 01:42:19,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.63ms. Allocated memory is still 58.7MB. Free memory was 39.0MB in the beginning and 38.4MB in the end (delta: 620.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.52ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 35.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.55ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 33.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 18349.70ms. Allocated memory was 58.7MB in the beginning and 90.2MB in the end (delta: 31.5MB). Free memory was 33.3MB in the beginning and 61.2MB in the end (delta: -28.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 37316.44ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 34.0MB in the end (delta: 26.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Witness Printer took 97.60ms. Allocated memory is still 90.2MB. Free memory was 34.0MB in the beginning and 63.3MB in the end (delta: -29.2MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 239]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 4183.87ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 489 SdHoareTripleChecker+Invalid, 3982.56ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 48 IncrementalHoareTripleChecker+Unchecked, 300 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 189 mSDtfsCounter, 31 mSolverCounterSat, 7.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 37 PreInvPairs, 43 NumberOfFragments, 118 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 24.7s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 152 ConstructedInterpolants, 31 QuantifiedInterpolants, 892 SizeOfPredicates, 35 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result) && ~bvor32(~bvadd64(ix, 3222274048bv32), lx) == 0bv32 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 168]: Loop Invariant [2021-11-13 01:42:19,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,774 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,774 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,775 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_12,QUANTIFIED] [2021-11-13 01:42:19,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2021-11-13 01:42:19,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,776 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-13 01:42:19,777 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists v_skolemized_q#valueAsBitvector_12 : bv64, v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8 : bv32 :: ((x == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_12[63:63], v_skolemized_q#valueAsBitvector_12[62:52], v_skolemized_q#valueAsBitvector_12[51:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) == ix) && v_skolemized_q#valueAsBitvector_12[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) && v_skolemized_q#valueAsBitvector_12[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][0bv32]) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64, currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && v_skolemized_q#valueAsBitvector_14[63:32] == hx)) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == \result && ~bvor32(~bvadd64(ix, 3222274048bv32), lx) == 0bv32 - InvariantResult [Line: 160]: Loop Invariant [2021-11-13 01:42:19,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:42:19,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~bvor32(~bvadd64(ix, 3222274048bv32), lx) == 0bv32) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:42:20,001 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-13 01:42:20,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5c5ea-7a50-46dd-b21c-7e4fba5efb81/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE