./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.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_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/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_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/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_f8894dba-484f-4385-a2ea-f500e846676a/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 97db4649e1472818bc0988249575733f0ee094f6677a6f3f19d9bb4aec20f92d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:30:48,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:30:48,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:30:48,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:30:48,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:30:48,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:30:48,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:30:48,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:30:48,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:30:48,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:30:48,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:30:48,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:30:48,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:30:48,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:30:48,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:30:48,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:30:48,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:30:48,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:30:48,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:30:48,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:30:48,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:30:49,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:30:49,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:30:49,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:30:49,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:30:49,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:30:49,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:30:49,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:30:49,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:30:49,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:30:49,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:30:49,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:30:49,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:30:49,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:30:49,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:30:49,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:30:49,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:30:49,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:30:49,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:30:49,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:30:49,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:30:49,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:30:49,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:30:49,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:30:49,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:30:49,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:30:49,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:30:49,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:30:49,078 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:30:49,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:30:49,079 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:30:49,079 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:30:49,080 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:30:49,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:30:49,080 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:30:49,081 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:30:49,081 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:30:49,081 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:30:49,081 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:30:49,081 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:30:49,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:30:49,083 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:30:49,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:30:49,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:30:49,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:30:49,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:30:49,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:30:49,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:30:49,084 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:30:49,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:30:49,084 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:30:49,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:30:49,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:30:49,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:30:49,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:30:49,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:30:49,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:30:49,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:30:49,086 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:30:49,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:30:49,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:30:49,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:30:49,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:30:49,087 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_f8894dba-484f-4385-a2ea-f500e846676a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97db4649e1472818bc0988249575733f0ee094f6677a6f3f19d9bb4aec20f92d [2021-11-21 01:30:49,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:30:49,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:30:49,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:30:49,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:30:49,403 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:30:49,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-11-21 01:30:49,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/154a3cb24/6623460a5fb04619a89ab5cd041421b3/FLAG8793a0911 [2021-11-21 01:30:49,943 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:30:49,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-11-21 01:30:49,967 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/154a3cb24/6623460a5fb04619a89ab5cd041421b3/FLAG8793a0911 [2021-11-21 01:30:50,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/154a3cb24/6623460a5fb04619a89ab5cd041421b3 [2021-11-21 01:30:50,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:30:50,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:30:50,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:30:50,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:30:50,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:30:50,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6b67fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50, skipping insertion in model container [2021-11-21 01:30:50,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:30:50,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:30:50,637 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_f8894dba-484f-4385-a2ea-f500e846676a/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-11-21 01:30:50,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:30:50,649 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:30:50,701 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_f8894dba-484f-4385-a2ea-f500e846676a/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-11-21 01:30:50,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:30:50,719 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:30:50,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50 WrapperNode [2021-11-21 01:30:50,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:30:50,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:30:50,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:30:50,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:30:50,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,766 INFO L137 Inliner]: procedures = 20, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 251 [2021-11-21 01:30:50,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:30:50,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:30:50,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:30:50,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:30:50,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:30:50,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:30:50,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:30:50,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:30:50,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (1/1) ... [2021-11-21 01:30:50,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:30:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:30:50,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:30:50,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:30:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:30:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:30:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:30:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 01:30:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:30:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-21 01:30:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-21 01:30:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 01:30:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-21 01:30:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-21 01:30:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:30:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:30:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:30:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-21 01:30:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:30:51,006 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:30:51,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:30:51,492 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:30:51,550 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:30:51,550 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-21 01:30:51,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:30:51 BoogieIcfgContainer [2021-11-21 01:30:51,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:30:51,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:30:51,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:30:51,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:30:51,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:30:50" (1/3) ... [2021-11-21 01:30:51,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3454af6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:30:51, skipping insertion in model container [2021-11-21 01:30:51,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:50" (2/3) ... [2021-11-21 01:30:51,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3454af6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:30:51, skipping insertion in model container [2021-11-21 01:30:51,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:30:51" (3/3) ... [2021-11-21 01:30:51,566 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2021-11-21 01:30:51,571 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:30:51,571 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:30:51,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:30:51,628 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 01:30:51,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:30:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 68 states have (on average 1.7058823529411764) internal successors, (116), 69 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:30:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:30:51,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:51,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:30:51,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:51,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:51,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1597020421, now seen corresponding path program 1 times [2021-11-21 01:30:51,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:51,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708567987] [2021-11-21 01:30:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:51,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:30:51,813 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 01:30:51,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:30:51,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708567987] [2021-11-21 01:30:51,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708567987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:30:51,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:30:51,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:30:51,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631907230] [2021-11-21 01:30:51,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:30:51,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:30:51,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:30:51,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:30:51,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:30:51,850 INFO L87 Difference]: Start difference. First operand has 76 states, 68 states have (on average 1.7058823529411764) internal successors, (116), 69 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:30:51,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:30:51,906 INFO L93 Difference]: Finished difference Result 150 states and 249 transitions. [2021-11-21 01:30:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:30:51,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 01:30:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:30:51,917 INFO L225 Difference]: With dead ends: 150 [2021-11-21 01:30:51,917 INFO L226 Difference]: Without dead ends: 73 [2021-11-21 01:30:51,921 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 01:30:51,924 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:30:51,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:30:51,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-21 01:30:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-21 01:30:51,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 66 states have internal predecessors, (93), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:30:51,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2021-11-21 01:30:51,968 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 11 [2021-11-21 01:30:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:30:51,968 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2021-11-21 01:30:51,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:30:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2021-11-21 01:30:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:30:51,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:30:51,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:30:51,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:30:51,970 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:30:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:30:51,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1982383716, now seen corresponding path program 1 times [2021-11-21 01:30:51,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:30:51,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338810233] [2021-11-21 01:30:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:30:51,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:30:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:30:52,058 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:30:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:30:52,180 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:30:52,183 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:30:52,185 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:30:52,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:30:52,192 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 01:30:52,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:30:52,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:30:52 BoogieIcfgContainer [2021-11-21 01:30:52,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:30:52,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:30:52,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:30:52,251 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:30:52,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:30:51" (3/4) ... [2021-11-21 01:30:52,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 01:30:52,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:30:52,255 INFO L158 Benchmark]: Toolchain (without parser) took 1910.44ms. Allocated memory is still 127.9MB. Free memory was 91.5MB in the beginning and 92.1MB in the end (delta: -633.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:30:52,256 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory was 98.7MB in the beginning and 98.7MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:30:52,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.70ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 98.6MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:30:52,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.78ms. Allocated memory is still 127.9MB. Free memory was 98.6MB in the beginning and 95.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 01:30:52,258 INFO L158 Benchmark]: Boogie Preprocessor took 44.18ms. Allocated memory is still 127.9MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:30:52,258 INFO L158 Benchmark]: RCFGBuilder took 741.54ms. Allocated memory is still 127.9MB. Free memory was 93.2MB in the beginning and 66.6MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-21 01:30:52,259 INFO L158 Benchmark]: TraceAbstraction took 694.93ms. Allocated memory is still 127.9MB. Free memory was 66.6MB in the beginning and 92.1MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:30:52,259 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 127.9MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:30:52,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory was 98.7MB in the beginning and 98.7MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.70ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 98.6MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.78ms. Allocated memory is still 127.9MB. Free memory was 98.6MB in the beginning and 95.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.18ms. Allocated memory is still 127.9MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 741.54ms. Allocated memory is still 127.9MB. Free memory was 93.2MB in the beginning and 66.6MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 694.93ms. Allocated memory is still 127.9MB. Free memory was 66.6MB in the beginning and 92.1MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 127.9MB. Free memory is still 92.1MB. 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: 273]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 272. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L266] double x = __VERIFIER_nondet_double(); [L267] double y = -0.0; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L269] COND TRUE x > 0.0 [L270] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, zero_atan2=0] [L270] RET, EXPR __ieee754_atan2(y, x) [L270] double res = __ieee754_atan2(y, x); [L272] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, res == -0.0 && __signbit_double(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, zero_atan2=0] [L272] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L273] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 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, 91 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 91 mSDtfsCounter, 14 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=76occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 01:30:52,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/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_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/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_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/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_f8894dba-484f-4385-a2ea-f500e846676a/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 97db4649e1472818bc0988249575733f0ee094f6677a6f3f19d9bb4aec20f92d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:30:54,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:30:54,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:30:54,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:30:54,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:30:54,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:30:54,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:30:54,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:30:54,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:30:54,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:30:54,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:30:54,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:30:54,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:30:54,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:30:54,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:30:54,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:30:54,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:30:54,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:30:54,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:30:54,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:30:54,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:30:54,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:30:54,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:30:54,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:30:54,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:30:54,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:30:54,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:30:54,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:30:54,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:30:54,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:30:54,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:30:54,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:30:54,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:30:54,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:30:54,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:30:54,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:30:54,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:30:54,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:30:54,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:30:54,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:30:54,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:30:54,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:30:54,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:30:54,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:30:54,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:30:54,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:30:54,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:30:54,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:30:54,876 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:30:54,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:30:54,877 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:30:54,877 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:30:54,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:30:54,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:30:54,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:30:54,879 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:30:54,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:30:54,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:30:54,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:30:54,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:30:54,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:30:54,880 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:30:54,880 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:30:54,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:30:54,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:30:54,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:30:54,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:30:54,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:30:54,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:30:54,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:30:54,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:30:54,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:30:54,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:30:54,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:30:54,884 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:30:54,884 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:30:54,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:30:54,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:30:54,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:30:54,885 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_f8894dba-484f-4385-a2ea-f500e846676a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97db4649e1472818bc0988249575733f0ee094f6677a6f3f19d9bb4aec20f92d [2021-11-21 01:30:55,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:30:55,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:30:55,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:30:55,334 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:30:55,334 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:30:55,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-11-21 01:30:55,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/71c409f39/3ed4495b96b849db8a1ceef6f946a0be/FLAGbbc96268b [2021-11-21 01:30:56,004 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:30:56,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c [2021-11-21 01:30:56,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/71c409f39/3ed4495b96b849db8a1ceef6f946a0be/FLAGbbc96268b [2021-11-21 01:30:56,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/data/71c409f39/3ed4495b96b849db8a1ceef6f946a0be [2021-11-21 01:30:56,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:30:56,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:30:56,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:30:56,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:30:56,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:30:56,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4ba6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56, skipping insertion in model container [2021-11-21 01:30:56,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:30:56,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:30:56,666 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_f8894dba-484f-4385-a2ea-f500e846676a/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-11-21 01:30:56,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:30:56,690 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:30:56,769 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_f8894dba-484f-4385-a2ea-f500e846676a/sv-benchmarks/c/float-newlib/double_req_bl_0661a.c[6446,6459] [2021-11-21 01:30:56,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:30:56,803 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:30:56,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56 WrapperNode [2021-11-21 01:30:56,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:30:56,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:30:56,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:30:56,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:30:56,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,893 INFO L137 Inliner]: procedures = 23, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 251 [2021-11-21 01:30:56,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:30:56,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:30:56,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:30:56,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:30:56,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:30:56,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:30:56,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:30:56,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:30:56,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (1/1) ... [2021-11-21 01:30:56,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:30:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:30:57,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:30:57,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:30:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:30:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-21 01:30:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-21 01:30:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:30:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:30:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-21 01:30:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-21 01:30:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-21 01:30:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-21 01:30:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-21 01:30:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 01:30:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:30:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:30:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 01:30:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:30:57,245 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:30:57,247 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:31:20,290 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:31:20,299 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:31:20,299 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-21 01:31:20,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:31:20 BoogieIcfgContainer [2021-11-21 01:31:20,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:31:20,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:31:20,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:31:20,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:31:20,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:30:56" (1/3) ... [2021-11-21 01:31:20,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fc18fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:31:20, skipping insertion in model container [2021-11-21 01:31:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:30:56" (2/3) ... [2021-11-21 01:31:20,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fc18fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:31:20, skipping insertion in model container [2021-11-21 01:31:20,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:31:20" (3/3) ... [2021-11-21 01:31:20,313 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661a.c [2021-11-21 01:31:20,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:31:20,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:31:20,367 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:31:20,375 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 01:31:20,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:31:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 91 states have (on average 1.6593406593406594) internal successors, (151), 92 states have internal predecessors, (151), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:31:20,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 01:31:20,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:20,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:31:20,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:20,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:20,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1101750833, now seen corresponding path program 1 times [2021-11-21 01:31:20,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:31:20,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512845120] [2021-11-21 01:31:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:20,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:31:20,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:31:20,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:31:20,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:31:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:20,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:31:20,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:31:21,103 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 01:31:21,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:31:21,315 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 01:31:21,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:31:21,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512845120] [2021-11-21 01:31:21,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512845120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:31:21,317 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:31:21,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:31:21,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680043706] [2021-11-21 01:31:21,320 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:31:21,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:31:21,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:31:21,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:31:21,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:31:21,353 INFO L87 Difference]: Start difference. First operand has 99 states, 91 states have (on average 1.6593406593406594) internal successors, (151), 92 states have internal predecessors, (151), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:31:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:31:21,388 INFO L93 Difference]: Finished difference Result 195 states and 318 transitions. [2021-11-21 01:31:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:31:21,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-21 01:31:21,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:31:21,400 INFO L225 Difference]: With dead ends: 195 [2021-11-21 01:31:21,401 INFO L226 Difference]: Without dead ends: 95 [2021-11-21 01:31:21,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:31:21,413 INFO L933 BasicCegarLoop]: 140 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, 140 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 01:31:21,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:31:21,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-21 01:31:21,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-21 01:31:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 88 states have (on average 1.4431818181818181) internal successors, (127), 88 states have internal predecessors, (127), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:31:21,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-11-21 01:31:21,480 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 135 transitions. Word has length 12 [2021-11-21 01:31:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:31:21,480 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-21 01:31:21,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:31:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2021-11-21 01:31:21,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 01:31:21,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:31:21,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:31:21,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:31:21,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:31:21,683 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:31:21,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:31:21,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1195087928, now seen corresponding path program 1 times [2021-11-21 01:31:21,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:31:21,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713972865] [2021-11-21 01:31:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:31:21,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:31:21,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:31:21,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:31:21,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8894dba-484f-4385-a2ea-f500e846676a/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:31:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:31:22,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 01:31:22,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:31:22,734 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 40 treesize of output 40 [2021-11-21 01:31:25,306 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:31:25,307 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 42 treesize of output 26 [2021-11-21 01:31:26,759 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 01:31:26,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:31:55,670 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 74 treesize of output 70