./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1011b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P --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 77e7bc0a7ca6c2b1faee27e24ec59fd1c1b81d4fc6d179bc3aaa35793cc2e051 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:19:48,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:19:48,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:19:49,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:19:49,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:19:49,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:19:49,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:19:49,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:19:49,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:19:49,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:19:49,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:19:49,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:19:49,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:19:49,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:19:49,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:19:49,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:19:49,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:19:49,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:19:49,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:19:49,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:19:49,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:19:49,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:19:49,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:19:49,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:19:49,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:19:49,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:19:49,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:19:49,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:19:49,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:19:49,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:19:49,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:19:49,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:19:49,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:19:49,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:19:49,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:19:49,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:19:49,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:19:49,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:19:49,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:19:49,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:19:49,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:19:49,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:19:49,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:19:49,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:19:49,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:19:49,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:19:49,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:19:49,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:19:49,132 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:19:49,133 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:19:49,133 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:19:49,133 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:19:49,133 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:19:49,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:19:49,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:19:49,134 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:19:49,135 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:19:49,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:19:49,135 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:19:49,135 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:19:49,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:19:49,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:19:49,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:19:49,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:19:49,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:19:49,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:19:49,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:19:49,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:19:49,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:19:49,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:19:49,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:19:49,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:19:49,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:19:49,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:19:49,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:19:49,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:19:49,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:19:49,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:19:49,141 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:19:49,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:19:49,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:19:49,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:19:49,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:19:49,143 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_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77e7bc0a7ca6c2b1faee27e24ec59fd1c1b81d4fc6d179bc3aaa35793cc2e051 [2021-11-21 00:19:49,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:19:49,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:19:49,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:19:49,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:19:49,477 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:19:49,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_1011b.c [2021-11-21 00:19:49,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/68d174f67/59516622a98142048d8a3a178947628d/FLAG0a3899801 [2021-11-21 00:19:50,056 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:19:50,056 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/sv-benchmarks/c/float-newlib/double_req_bl_1011b.c [2021-11-21 00:19:50,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/68d174f67/59516622a98142048d8a3a178947628d/FLAG0a3899801 [2021-11-21 00:19:50,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/68d174f67/59516622a98142048d8a3a178947628d [2021-11-21 00:19:50,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:19:50,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:19:50,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:19:50,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:19:50,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:19:50,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db7a759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50, skipping insertion in model container [2021-11-21 00:19:50,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:19:50,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:19:50,708 WARN L230 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_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/sv-benchmarks/c/float-newlib/double_req_bl_1011b.c[1211,1224] [2021-11-21 00:19:50,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:19:50,720 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:19:50,743 WARN L230 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_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/sv-benchmarks/c/float-newlib/double_req_bl_1011b.c[1211,1224] [2021-11-21 00:19:50,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:19:50,764 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:19:50,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50 WrapperNode [2021-11-21 00:19:50,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:19:50,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:19:50,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:19:50,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:19:50,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,810 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-11-21 00:19:50,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:19:50,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:19:50,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:19:50,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:19:50,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:19:50,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:19:50,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:19:50,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:19:50,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (1/1) ... [2021-11-21 00:19:50,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:19:50,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:19:50,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:19:50,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:19:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:19:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:19:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:19:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 00:19:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:19:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 00:19:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:19:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:19:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:19:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:19:51,005 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:19:51,006 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:19:51,159 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:19:51,176 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:19:51,177 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-21 00:19:51,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:19:51 BoogieIcfgContainer [2021-11-21 00:19:51,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:19:51,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:19:51,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:19:51,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:19:51,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:19:50" (1/3) ... [2021-11-21 00:19:51,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b483444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:19:51, skipping insertion in model container [2021-11-21 00:19:51,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:50" (2/3) ... [2021-11-21 00:19:51,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b483444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:19:51, skipping insertion in model container [2021-11-21 00:19:51,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:19:51" (3/3) ... [2021-11-21 00:19:51,191 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011b.c [2021-11-21 00:19:51,198 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:19:51,198 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:19:51,321 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:19:51,329 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 [2021-11-21 00:19:51,330 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:19:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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) [2021-11-21 00:19:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 00:19:51,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:51,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:19:51,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:19:51,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash 442198330, now seen corresponding path program 1 times [2021-11-21 00:19:51,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:19:51,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108721172] [2021-11-21 00:19:51,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:51,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:19:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:19:51,610 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:19:51,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108721172] [2021-11-21 00:19:51,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108721172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:19:51,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:19:51,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:19:51,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449456268] [2021-11-21 00:19:51,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:19:51,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:19:51,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:19:51,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:19:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:19:51,679 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-21 00:19:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:19:51,708 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2021-11-21 00:19:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:19:51,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-21 00:19:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:19:51,721 INFO L225 Difference]: With dead ends: 29 [2021-11-21 00:19:51,721 INFO L226 Difference]: Without dead ends: 13 [2021-11-21 00:19:51,725 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 [2021-11-21 00:19:51,730 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:19:51,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:19:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-21 00:19:51,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-21 00:19:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-11-21 00:19:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-21 00:19:51,772 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-11-21 00:19:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:19:51,773 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-21 00:19:51,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-21 00:19:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-21 00:19:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:19:51,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:51,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:19:51,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:19:51,776 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:19:51,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:51,777 INFO L85 PathProgramCache]: Analyzing trace with hash -417039369, now seen corresponding path program 1 times [2021-11-21 00:19:51,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:19:51,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813269469] [2021-11-21 00:19:51,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:51,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:19:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:19:51,819 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:19:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:19:51,873 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 00:19:51,873 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:19:51,876 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:19:51,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:19:51,894 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 00:19:51,898 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:19:51,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:19:51 BoogieIcfgContainer [2021-11-21 00:19:51,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:19:51,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:19:51,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:19:51,936 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:19:51,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:19:51" (3/4) ... [2021-11-21 00:19:51,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 00:19:51,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:19:51,943 INFO L158 Benchmark]: Toolchain (without parser) took 1526.99ms. Allocated memory is still 146.8MB. Free memory was 104.9MB in the beginning and 80.3MB in the end (delta: 24.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2021-11-21 00:19:51,943 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory was 122.1MB in the beginning and 122.1MB in the end (delta: 77.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:19:51,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.97ms. Allocated memory is still 146.8MB. Free memory was 104.7MB in the beginning and 118.5MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:19:51,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.66ms. Allocated memory is still 146.8MB. Free memory was 118.5MB in the beginning and 116.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:19:51,946 INFO L158 Benchmark]: Boogie Preprocessor took 38.18ms. Allocated memory is still 146.8MB. Free memory was 116.8MB in the beginning and 115.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:19:51,947 INFO L158 Benchmark]: RCFGBuilder took 329.38ms. Allocated memory is still 146.8MB. Free memory was 115.6MB in the beginning and 104.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:19:51,948 INFO L158 Benchmark]: TraceAbstraction took 752.51ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 80.3MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-21 00:19:51,949 INFO L158 Benchmark]: Witness Printer took 5.94ms. Allocated memory is still 146.8MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:19:51,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory was 122.1MB in the beginning and 122.1MB in the end (delta: 77.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.97ms. Allocated memory is still 146.8MB. Free memory was 104.7MB in the beginning and 118.5MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.66ms. Allocated memory is still 146.8MB. Free memory was 118.5MB in the beginning and 116.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.18ms. Allocated memory is still 146.8MB. Free memory was 116.8MB in the beginning and 115.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 329.38ms. Allocated memory is still 146.8MB. Free memory was 115.6MB in the beginning and 104.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 752.51ms. Allocated memory is still 146.8MB. Free memory was 103.8MB in the beginning and 80.3MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.94ms. Allocated memory is still 146.8MB. Free memory is still 80.3MB. 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: 54]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 37. Possible FailurePath: [L49] double x = -0.0; [L50] CALL, EXPR fabs_double(x) [L28] __uint32_t high; VAL [\old(x)=49, x=49] [L30] ieee_double_shape_type gh_u; [L31] gh_u.value = (x) [L32] EXPR gh_u.parts.msw [L32] (high) = gh_u.parts.msw [L35] ieee_double_shape_type sh_u; [L36] sh_u.value = (x) [L37] sh_u.parts.msw = (high & 0x7fffffff) [L38] EXPR sh_u.value [L38] (x) = sh_u.value [L40] return x; [L50] RET, EXPR fabs_double(x) [L50] double res = fabs_double(x); [L53] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=49, res == 0.0 && __signbit_double(res) == 0=0, x=49] [L53] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L54] reach_error() VAL [res=49, x=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 4 mSolverCounterSat, 0.0s 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=15occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2021-11-21 00:19:52,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/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_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1011b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P --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 77e7bc0a7ca6c2b1faee27e24ec59fd1c1b81d4fc6d179bc3aaa35793cc2e051 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:19:54,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:19:54,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:19:54,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:19:54,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:19:54,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:19:54,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:19:54,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:19:54,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:19:54,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:19:54,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:19:54,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:19:54,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:19:54,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:19:54,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:19:54,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:19:54,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:19:54,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:19:54,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:19:54,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:19:54,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:19:54,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:19:54,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:19:54,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:19:55,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:19:55,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:19:55,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:19:55,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:19:55,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:19:55,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:19:55,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:19:55,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:19:55,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:19:55,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:19:55,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:19:55,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:19:55,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:19:55,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:19:55,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:19:55,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:19:55,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:19:55,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 00:19:55,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:19:55,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:19:55,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:19:55,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:19:55,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:19:55,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:19:55,098 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:19:55,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:19:55,099 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:19:55,099 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:19:55,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:19:55,101 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:19:55,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:19:55,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:19:55,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:19:55,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:19:55,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:19:55,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:19:55,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:19:55,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:19:55,105 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:19:55,105 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:19:55,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:19:55,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:19:55,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:19:55,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:19:55,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:19:55,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:19:55,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:19:55,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:19:55,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:19:55,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:19:55,108 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:19:55,109 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:19:55,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:19:55,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:19:55,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:19:55,110 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_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77e7bc0a7ca6c2b1faee27e24ec59fd1c1b81d4fc6d179bc3aaa35793cc2e051 [2021-11-21 00:19:55,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:19:55,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:19:55,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:19:55,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:19:55,632 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:19:55,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_1011b.c [2021-11-21 00:19:55,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/5cb525e6a/89ba370cf8354878990e4c1deb32175e/FLAGe129cb9fc [2021-11-21 00:19:56,300 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:19:56,301 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/sv-benchmarks/c/float-newlib/double_req_bl_1011b.c [2021-11-21 00:19:56,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/5cb525e6a/89ba370cf8354878990e4c1deb32175e/FLAGe129cb9fc [2021-11-21 00:19:56,687 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/data/5cb525e6a/89ba370cf8354878990e4c1deb32175e [2021-11-21 00:19:56,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:19:56,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:19:56,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:19:56,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:19:56,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:19:56,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:19:56" (1/1) ... [2021-11-21 00:19:56,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173baf4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:56, skipping insertion in model container [2021-11-21 00:19:56,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:19:56" (1/1) ... [2021-11-21 00:19:56,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:19:56,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:19:56,995 WARN L230 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_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/sv-benchmarks/c/float-newlib/double_req_bl_1011b.c[1211,1224] [2021-11-21 00:19:57,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:19:57,019 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:19:57,111 WARN L230 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_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/sv-benchmarks/c/float-newlib/double_req_bl_1011b.c[1211,1224] [2021-11-21 00:19:57,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:19:57,145 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:19:57,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57 WrapperNode [2021-11-21 00:19:57,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:19:57,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:19:57,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:19:57,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:19:57,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,211 INFO L137 Inliner]: procedures = 19, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-11-21 00:19:57,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:19:57,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:19:57,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:19:57,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:19:57,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:19:57,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:19:57,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:19:57,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:19:57,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (1/1) ... [2021-11-21 00:19:57,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:19:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:19:57,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:19:57,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:19:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:19:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-21 00:19:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-21 00:19:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:19:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:19:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:19:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:19:57,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:19:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:19:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:19:57,479 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:19:57,481 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:19:57,705 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:19:57,710 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:19:57,725 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-21 00:19:57,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:19:57 BoogieIcfgContainer [2021-11-21 00:19:57,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:19:57,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:19:57,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:19:57,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:19:57,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:19:56" (1/3) ... [2021-11-21 00:19:57,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e3f953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:19:57, skipping insertion in model container [2021-11-21 00:19:57,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:57" (2/3) ... [2021-11-21 00:19:57,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e3f953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:19:57, skipping insertion in model container [2021-11-21 00:19:57,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:19:57" (3/3) ... [2021-11-21 00:19:57,736 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011b.c [2021-11-21 00:19:57,741 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:19:57,753 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:19:57,829 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:19:57,837 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 [2021-11-21 00:19:57,837 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:19:57,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-11-21 00:19:57,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:19:57,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:57,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:19:57,857 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:19:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:57,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1641221055, now seen corresponding path program 1 times [2021-11-21 00:19:57,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:19:57,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884764158] [2021-11-21 00:19:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:57,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:19:57,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:19:57,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:19:57,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:19:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:57,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 00:19:57,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:19:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:19:58,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:19:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:19:58,084 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:19:58,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884764158] [2021-11-21 00:19:58,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884764158] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:19:58,085 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:19:58,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:19:58,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343278790] [2021-11-21 00:19:58,089 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:19:58,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:19:58,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:19:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:19:58,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:19:58,130 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:19:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:19:58,146 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-11-21 00:19:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:19:58,148 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 [2021-11-21 00:19:58,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:19:58,157 INFO L225 Difference]: With dead ends: 36 [2021-11-21 00:19:58,157 INFO L226 Difference]: Without dead ends: 16 [2021-11-21 00:19:58,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:19:58,169 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:19:58,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:19:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-21 00:19:58,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-21 00:19:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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) [2021-11-21 00:19:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-21 00:19:58,201 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2021-11-21 00:19:58,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:19:58,201 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-21 00:19:58,202 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) [2021-11-21 00:19:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-21 00:19:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:19:58,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:58,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:19:58,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:19:58,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:19:58,416 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:19:58,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash 558264036, now seen corresponding path program 1 times [2021-11-21 00:19:58,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:19:58,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463577795] [2021-11-21 00:19:58,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:58,418 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:19:58,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:19:58,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:19:58,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:19:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:58,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 00:19:58,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:19:58,651 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 [2021-11-21 00:19:58,840 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:19:58,840 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 121 treesize of output 107 [2021-11-21 00:19:58,872 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 43 treesize of output 33 [2021-11-21 00:19:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:19:59,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:19:59,396 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:19:59,396 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 126 treesize of output 105 [2021-11-21 00:19:59,421 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:19:59,422 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 105 treesize of output 103 [2021-11-21 00:19:59,456 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 15 treesize of output 11 [2021-11-21 00:19:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:19:59,571 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:19:59,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463577795] [2021-11-21 00:19:59,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463577795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:19:59,572 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:19:59,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 10 [2021-11-21 00:19:59,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603791772] [2021-11-21 00:19:59,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:19:59,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 00:19:59,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:19:59,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 00:19:59,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:19:59,575 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2021-11-21 00:19:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:19:59,602 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-11-21 00:19:59,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:19:59,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:19:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:19:59,604 INFO L225 Difference]: With dead ends: 19 [2021-11-21 00:19:59,604 INFO L226 Difference]: Without dead ends: 16 [2021-11-21 00:19:59,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:19:59,606 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:19:59,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 61 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2021-11-21 00:19:59,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-21 00:19:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-21 00:19:59,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 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) [2021-11-21 00:19:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-11-21 00:19:59,611 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2021-11-21 00:19:59,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:19:59,612 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-11-21 00:19:59,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2021-11-21 00:19:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-11-21 00:19:59,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 00:19:59,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:59,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:19:59,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:19:59,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:19:59,826 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:19:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:59,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2014349959, now seen corresponding path program 1 times [2021-11-21 00:19:59,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:19:59,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325489381] [2021-11-21 00:19:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:59,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:19:59,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:19:59,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:19:59,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:19:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:59,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-21 00:19:59,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:19:59,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2021-11-21 00:20:00,321 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:20:00,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 70 treesize of output 42 [2021-11-21 00:20:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:20:00,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:20:01,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 56 [2021-11-21 00:20:01,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2021-11-21 00:20:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:20:01,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:20:01,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325489381] [2021-11-21 00:20:01,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325489381] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:01,320 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:01,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2021-11-21 00:20:01,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929584403] [2021-11-21 00:20:01,321 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:01,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 00:20:01,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:20:01,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 00:20:01,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-21 00:20:01,324 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-11-21 00:20:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:01,402 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-21 00:20:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 00:20:01,402 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 15 [2021-11-21 00:20:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:01,403 INFO L225 Difference]: With dead ends: 16 [2021-11-21 00:20:01,403 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 00:20:01,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-11-21 00:20:01,405 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:01,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 50 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2021-11-21 00:20:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 00:20:01,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 00:20:01,407 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) [2021-11-21 00:20:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 00:20:01,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-21 00:20:01,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:01,407 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 00:20:01,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-11-21 00:20:01,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 00:20:01,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 00:20:01,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:20:01,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:20:01,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:20:01,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 00:20:01,672 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-21 00:20:01,673 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short9#1| (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (|v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8| (_ BitVec 32))) (let ((.cse2 (select |#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8|))) (let ((.cse1 (select .cse2 (_ bv4 32)))) (and (= (let ((.cse0 (concat .cse1 (select .cse2 (_ bv0 32))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start___signbit_double_~x#1|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)) (fp.neg (_ +zero 11 53))) (= (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) .cse1)))))) [2021-11-21 00:20:01,673 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-11-21 00:20:01,673 INFO L854 garLoopResultBuilder]: At program point L40(lines 27 41) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (let ((.cse1 (fp.neg (_ +zero 11 53)))) (and (= (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_8|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) |ULTIMATE.start_fabs_double_#res#1|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) .cse1) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) .cse1)))) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (|v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8| (_ BitVec 32))) (let ((.cse4 (select |#memory_int| |v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8|))) (let ((.cse3 (select .cse4 (_ bv4 32)))) (and (= (let ((.cse2 (concat .cse3 (select .cse4 (_ bv0 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) |ULTIMATE.start_fabs_double_#res#1|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)) (fp.neg (_ +zero 11 53))) (= (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) .cse3)))))) [2021-11-21 00:20:01,673 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 00:20:01,673 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 00:20:01,674 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 00:20:01,674 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-21 00:20:01,674 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-21 00:20:01,674 INFO L858 garLoopResultBuilder]: For program point L53-2(lines 53 56) no Hoare annotation was computed. [2021-11-21 00:20:01,674 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 00:20:01,674 INFO L858 garLoopResultBuilder]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2021-11-21 00:20:01,675 INFO L854 garLoopResultBuilder]: At program point L29-2(lines 29 33) the Hoare annotation is: (= |ULTIMATE.start_fabs_double_~x#1| (fp.neg (_ +zero 11 53))) [2021-11-21 00:20:01,675 INFO L861 garLoopResultBuilder]: At program point L58(lines 43 59) the Hoare annotation is: true [2021-11-21 00:20:01,675 INFO L854 garLoopResultBuilder]: At program point L25(lines 16 26) the Hoare annotation is: (and (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|) |ULTIMATE.start_main_#t~short9#1|) [2021-11-21 00:20:01,675 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-11-21 00:20:01,675 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 39) no Hoare annotation was computed. [2021-11-21 00:20:01,676 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 27 41) no Hoare annotation was computed. [2021-11-21 00:20:01,676 INFO L858 garLoopResultBuilder]: For program point L34-2(lines 34 39) no Hoare annotation was computed. [2021-11-21 00:20:01,680 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-21 00:20:01,681 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:20:01,688 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,717 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,717 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,717 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,718 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,718 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,718 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,718 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:20:01 BoogieIcfgContainer [2021-11-21 00:20:01,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:20:01,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:20:01,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:20:01,773 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:20:01,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:19:57" (3/4) ... [2021-11-21 00:20:01,777 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:20:01,797 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-21 00:20:01,797 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-21 00:20:01,797 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 00:20:01,798 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:20:01,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:20:01,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:20:01,827 INFO L158 Benchmark]: Toolchain (without parser) took 5132.23ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 35.0MB in the beginning and 58.2MB in the end (delta: -23.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-21 00:20:01,828 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:20:01,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.89ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.8MB in the beginning and 54.5MB in the end (delta: -19.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 00:20:01,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.70ms. Allocated memory is still 71.3MB. Free memory was 54.3MB in the beginning and 52.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:20:01,829 INFO L158 Benchmark]: Boogie Preprocessor took 63.21ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:20:01,830 INFO L158 Benchmark]: RCFGBuilder took 451.02ms. Allocated memory is still 71.3MB. Free memory was 51.1MB in the beginning and 40.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:20:01,830 INFO L158 Benchmark]: TraceAbstraction took 4042.80ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 39.6MB in the beginning and 60.3MB in the end (delta: -20.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-21 00:20:01,831 INFO L158 Benchmark]: Witness Printer took 53.70ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 58.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:20:01,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.89ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.8MB in the beginning and 54.5MB in the end (delta: -19.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.70ms. Allocated memory is still 71.3MB. Free memory was 54.3MB in the beginning and 52.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.21ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.02ms. Allocated memory is still 71.3MB. Free memory was 51.1MB in the beginning and 40.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4042.80ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 39.6MB in the beginning and 60.3MB in the end (delta: -20.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 53.70ms. Allocated memory is still 86.0MB. Free memory was 60.3MB in the beginning and 58.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,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: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 40 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 184 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 24 QuantifiedInterpolants, 1075 SizeOfPredicates, 22 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2021-11-21 00:20:01,852 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,852 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] Derived loop invariant: aux-res == 0.0 && __signbit_double(res) == 0-aux && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8 : bv32 :: (~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][0bv32])[51:0]) == x && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]) == unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32]) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0bv32 == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant [2021-11-21 00:20:01,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,868 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-11-21 00:20:01,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-11-21 00:20:01,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,892 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] [2021-11-21 00:20:01,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-11-21 00:20:01,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8,QUANTIFIED] Derived loop invariant: (\exists v_skolemized_q#valueAsBitvector_7 : bv64, v_skolemized_q#valueAsBitvector_8 : bv64 :: (~fp~LONGDOUBLE((~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_7[63:32]) ++ v_skolemized_q#valueAsBitvector_8[31:0])[63:63], (~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_7[63:32]) ++ v_skolemized_q#valueAsBitvector_8[31:0])[62:52], (~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_7[63:32]) ++ v_skolemized_q#valueAsBitvector_8[31:0])[51:0]) == \result && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8 : bv32 :: (~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][0bv32])[51:0]) == \result && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]) == unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_double_~#sh_u~0#1.base_8][4bv32]) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2021-11-21 00:20:01,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db95deed-0f18-45c2-b1b1-8c9a8fe0ca13/bin/utaipan-TEXQjIfE4P/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 Writing output log to file Ultimate.log Result: TRUE