./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:05:39,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:05:39,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:05:39,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:05:39,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:05:39,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:05:39,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:05:39,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:05:39,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:05:39,122 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:05:39,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:05:39,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:05:39,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:05:39,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:05:39,125 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:05:39,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:05:39,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:05:39,127 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:05:39,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:05:39,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:05:39,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:05:39,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:05:39,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:05:39,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:05:39,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:05:39,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:05:39,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:05:39,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:05:39,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:05:39,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:05:39,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:05:39,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:05:39,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:05:39,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:05:39,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:05:39,135 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:05:39,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:05:39,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:05:39,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:05:39,136 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:05:39,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:05:39,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:05:39,137 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2023-11-29 01:05:39,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:05:39,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:05:39,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:05:39,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:05:39,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:05:39,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2023-11-29 01:05:42,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:05:42,399 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:05:42,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2023-11-29 01:05:42,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data/cea5e3c3b/9c2cd32f9f954529a3793d69e1d5bd16/FLAG3f2bdece8 [2023-11-29 01:05:42,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data/cea5e3c3b/9c2cd32f9f954529a3793d69e1d5bd16 [2023-11-29 01:05:42,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:05:42,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:05:42,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:05:42,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:05:42,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:05:42,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ceb6fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42, skipping insertion in model container [2023-11-29 01:05:42,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:05:42,663 WARN L240 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_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2023-11-29 01:05:42,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:05:42,680 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:05:42,710 WARN L240 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_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2023-11-29 01:05:42,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:05:42,730 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:05:42,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42 WrapperNode [2023-11-29 01:05:42,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:05:42,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:05:42,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:05:42,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:05:42,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,780 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2023-11-29 01:05:42,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:05:42,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:05:42,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:05:42,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:05:42,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,817 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2023-11-29 01:05:42,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:05:42,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:05:42,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:05:42,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:05:42,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (1/1) ... [2023-11-29 01:05:42,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:05:42,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:42,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:05:42,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:05:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:05:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:05:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:05:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:05:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:05:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 01:05:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 01:05:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-29 01:05:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:05:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:05:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:05:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 01:05:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 01:05:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-29 01:05:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:05:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:05:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:05:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:05:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:05:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:05:43,016 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:05:43,018 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:05:43,306 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:05:43,331 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:05:43,332 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 01:05:43,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:43 BoogieIcfgContainer [2023-11-29 01:05:43,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:05:43,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:05:43,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:05:43,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:05:43,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:05:42" (1/3) ... [2023-11-29 01:05:43,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791ef3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:05:43, skipping insertion in model container [2023-11-29 01:05:43,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:42" (2/3) ... [2023-11-29 01:05:43,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791ef3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:05:43, skipping insertion in model container [2023-11-29 01:05:43,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:43" (3/3) ... [2023-11-29 01:05:43,343 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2023-11-29 01:05:43,359 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:05:43,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:05:43,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:05:43,409 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5bc8bbab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:05:43,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:05:43,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 50 states have internal predecessors, (86), 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) [2023-11-29 01:05:43,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 01:05:43,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:43,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:43,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:05:43,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:43,427 INFO L85 PathProgramCache]: Analyzing trace with hash -531103353, now seen corresponding path program 1 times [2023-11-29 01:05:43,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:43,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57392291] [2023-11-29 01:05:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:43,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:43,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:43,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57392291] [2023-11-29 01:05:43,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57392291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:43,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:43,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:43,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120845096] [2023-11-29 01:05:43,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:43,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:05:43,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:43,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:05:43,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:05:43,639 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 50 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:43,669 INFO L93 Difference]: Finished difference Result 101 states and 171 transitions. [2023-11-29 01:05:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:05:43,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 01:05:43,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:43,683 INFO L225 Difference]: With dead ends: 101 [2023-11-29 01:05:43,683 INFO L226 Difference]: Without dead ends: 49 [2023-11-29 01:05:43,687 INFO L412 NwaCegarLoop]: 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 [2023-11-29 01:05:43,691 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:43,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:05:43,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-29 01:05:43,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-29 01:05:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 48 states have internal predecessors, (79), 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) [2023-11-29 01:05:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 79 transitions. [2023-11-29 01:05:43,735 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 79 transitions. Word has length 9 [2023-11-29 01:05:43,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:43,736 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 79 transitions. [2023-11-29 01:05:43,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 79 transitions. [2023-11-29 01:05:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 01:05:43,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:43,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:43,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:05:43,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:05:43,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash -951308078, now seen corresponding path program 1 times [2023-11-29 01:05:43,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:43,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010370593] [2023-11-29 01:05:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:43,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:05:43,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:05:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:05:43,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:05:43,858 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:05:43,860 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:05:43,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:05:43,866 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 01:05:43,870 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:05:43,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:05:43 BoogieIcfgContainer [2023-11-29 01:05:43,894 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:05:43,894 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:05:43,895 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:05:43,895 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:05:43,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:43" (3/4) ... [2023-11-29 01:05:43,898 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:05:43,899 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:05:43,900 INFO L158 Benchmark]: Toolchain (without parser) took 1468.63ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 102.6MB in the beginning and 137.8MB in the end (delta: -35.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-11-29 01:05:43,900 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:05:43,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.79ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 90.7MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 01:05:43,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.55ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 88.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:05:43,902 INFO L158 Benchmark]: Boogie Preprocessor took 59.08ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 86.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:05:43,903 INFO L158 Benchmark]: RCFGBuilder took 490.93ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 66.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 01:05:43,903 INFO L158 Benchmark]: TraceAbstraction took 558.01ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 65.2MB in the beginning and 138.8MB in the end (delta: -73.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:05:43,904 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 182.5MB. Free memory was 138.8MB in the beginning and 137.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:05:43,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.79ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 90.7MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.55ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 88.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.08ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 86.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.93ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 66.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 558.01ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 65.2MB in the beginning and 138.8MB in the end (delta: -73.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 182.5MB. Free memory was 138.8MB in the beginning and 137.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 97]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; [L92] double x = 0.0 / 0.0; [L93] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008] [L25] ieee_double_shape_type ew_u; [L26] EXPR ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] EXPR (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] EXPR (i1) = ew_u.parts.lsw [L24-L29] { ieee_double_shape_type ew_u; ew_u.value = (x); (i0) = ew_u.parts.msw; (i1) = ew_u.parts.lsw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008] [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008] [L31] COND FALSE !(j0 < 20) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008] [L53] COND TRUE j0 > 51 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008] [L54] COND TRUE j0 == 0x400 [L55] return x + x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008] [L93] RET, EXPR ceil_double(x) [L93] double res = ceil_double(x); [L96] CALL, EXPR isnan_double(res) [L17] return x != x; [L96] RET, EXPR isnan_double(res) [L96] COND TRUE !isnan_double(res) [L97] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 78 mSDtfsCounter, 3 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=51occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 01:05:43,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:05:45,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:05:46,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 01:05:46,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:05:46,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:05:46,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:05:46,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:05:46,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:05:46,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:05:46,094 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:05:46,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:05:46,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:05:46,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:05:46,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:05:46,097 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:05:46,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:05:46,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:05:46,099 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:05:46,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:05:46,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:05:46,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:05:46,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:05:46,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:05:46,102 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:05:46,102 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:05:46,103 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:05:46,103 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:05:46,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:05:46,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:05:46,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:05:46,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:05:46,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:05:46,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:05:46,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:05:46,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:05:46,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:05:46,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:05:46,108 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:05:46,108 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:05:46,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:05:46,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:05:46,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:05:46,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:05:46,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:05:46,109 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:05:46,110 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2023-11-29 01:05:46,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:05:46,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:05:46,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:05:46,468 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:05:46,468 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:05:46,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2023-11-29 01:05:49,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:05:49,518 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:05:49,518 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2023-11-29 01:05:49,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data/69410b780/e6f5456d589342e2840b872e5c241c73/FLAG90d3bd984 [2023-11-29 01:05:49,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/data/69410b780/e6f5456d589342e2840b872e5c241c73 [2023-11-29 01:05:49,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:05:49,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:05:49,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:05:49,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:05:49,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:05:49,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d135cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49, skipping insertion in model container [2023-11-29 01:05:49,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:05:49,765 WARN L240 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_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2023-11-29 01:05:49,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:05:49,783 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:05:49,810 WARN L240 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_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2023-11-29 01:05:49,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:05:49,843 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:05:49,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49 WrapperNode [2023-11-29 01:05:49,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:05:49,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:05:49,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:05:49,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:05:49,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,900 INFO L138 Inliner]: procedures = 19, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2023-11-29 01:05:49,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:05:49,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:05:49,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:05:49,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:05:49,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,939 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2023-11-29 01:05:49,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,953 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:05:49,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:05:49,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:05:49,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:05:49,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (1/1) ... [2023-11-29 01:05:49,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:05:49,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:50,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:05:50,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:05:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:05:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-29 01:05:50,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-29 01:05:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-29 01:05:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-29 01:05:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-29 01:05:50,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-29 01:05:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:05:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 01:05:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 01:05:50,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:05:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 01:05:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 01:05:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 01:05:50,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:05:50,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:05:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 01:05:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 01:05:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 01:05:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:05:50,161 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:05:50,163 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:05:51,482 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:05:51,503 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:05:51,503 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 01:05:51,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:51 BoogieIcfgContainer [2023-11-29 01:05:51,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:05:51,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:05:51,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:05:51,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:05:51,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:05:49" (1/3) ... [2023-11-29 01:05:51,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59294b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:05:51, skipping insertion in model container [2023-11-29 01:05:51,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:05:49" (2/3) ... [2023-11-29 01:05:51,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59294b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:05:51, skipping insertion in model container [2023-11-29 01:05:51,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:51" (3/3) ... [2023-11-29 01:05:51,512 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2023-11-29 01:05:51,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:05:51,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:05:51,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:05:51,575 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@540f079f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:05:51,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:05:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 30 states have internal predecessors, (50), 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) [2023-11-29 01:05:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 01:05:51,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:51,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:51,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:05:51,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:51,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1074335089, now seen corresponding path program 1 times [2023-11-29 01:05:51,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:05:51,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513628933] [2023-11-29 01:05:51,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:51,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:05:51,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:05:51,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:05:51,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 01:05:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:51,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:05:51,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:51,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:51,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:51,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:05:51,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513628933] [2023-11-29 01:05:51,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513628933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:51,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:51,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836277019] [2023-11-29 01:05:51,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:51,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:05:51,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:05:51,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:05:51,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:05:51,804 INFO L87 Difference]: Start difference. First operand has 31 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 30 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:51,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:51,838 INFO L93 Difference]: Finished difference Result 61 states and 99 transitions. [2023-11-29 01:05:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:05:51,841 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 01:05:51,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:51,851 INFO L225 Difference]: With dead ends: 61 [2023-11-29 01:05:51,851 INFO L226 Difference]: Without dead ends: 29 [2023-11-29 01:05:51,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:05:51,859 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:51,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:05:51,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-29 01:05:51,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-29 01:05:51,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 28 states have internal predecessors, (43), 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) [2023-11-29 01:05:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2023-11-29 01:05:51,901 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 9 [2023-11-29 01:05:51,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:51,902 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2023-11-29 01:05:51,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:51,902 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2023-11-29 01:05:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 01:05:51,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:51,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:51,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:05:52,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:05:52,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:05:52,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:52,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1695832790, now seen corresponding path program 1 times [2023-11-29 01:05:52,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:05:52,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858786642] [2023-11-29 01:05:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:52,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:05:52,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:05:52,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:05:52,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 01:05:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:52,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:05:52,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:52,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:52,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:05:52,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858786642] [2023-11-29 01:05:52,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858786642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:52,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:52,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:05:52,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499314374] [2023-11-29 01:05:52,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:52,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:05:52,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:05:52,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:05:52,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:05:52,438 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-29 01:05:53,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:53,264 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2023-11-29 01:05:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:05:53,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-11-29 01:05:53,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:53,266 INFO L225 Difference]: With dead ends: 38 [2023-11-29 01:05:53,266 INFO L226 Difference]: Without dead ends: 19 [2023-11-29 01:05:53,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:05:53,268 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:53,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 46 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:05:53,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-29 01:05:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-29 01:05:53,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2023-11-29 01:05:53,272 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2023-11-29 01:05:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:53,273 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2023-11-29 01:05:53,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-29 01:05:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-11-29 01:05:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 01:05:53,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:53,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:53,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 01:05:53,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:05:53,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:05:53,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1627662100, now seen corresponding path program 1 times [2023-11-29 01:05:53,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:05:53,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553543478] [2023-11-29 01:05:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:53,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:05:53,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:05:53,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:05:53,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 01:05:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:53,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:05:53,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:53,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:53,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:05:53,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553543478] [2023-11-29 01:05:53,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553543478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:53,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:53,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:05:53,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919053401] [2023-11-29 01:05:53,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:53,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:05:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:05:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:05:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:05:53,828 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:54,025 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-29 01:05:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:05:54,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-29 01:05:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:54,027 INFO L225 Difference]: With dead ends: 19 [2023-11-29 01:05:54,027 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 01:05:54,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:05:54,029 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:54,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:05:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 01:05:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 01:05:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 01:05:54,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-29 01:05:54,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:54,031 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 01:05:54,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 01:05:54,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 01:05:54,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:05:54,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-29 01:05:54,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:05:54,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 01:05:54,250 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 85 102) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2023-11-29 01:05:54,251 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 99) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point ceil_double_returnLabel#1(lines 21 83) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2023-11-29 01:05:54,252 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2023-11-29 01:05:54,253 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2023-11-29 01:05:54,253 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2023-11-29 01:05:54,253 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2023-11-29 01:05:54,253 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2023-11-29 01:05:54,253 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_ceil_double_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) [2023-11-29 01:05:54,253 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2023-11-29 01:05:54,254 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2023-11-29 01:05:54,254 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 01:05:54,254 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2023-11-29 01:05:54,254 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2023-11-29 01:05:54,254 INFO L895 garLoopResultBuilder]: At program point L76-1(lines 76 81) the Hoare annotation is: false [2023-11-29 01:05:54,254 INFO L899 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2023-11-29 01:05:54,254 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2023-11-29 01:05:54,254 INFO L899 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2023-11-29 01:05:54,257 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 01:05:54,259 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:05:54,266 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~64(currentRoundingMode, ~Pluszero~64(), ~Pluszero~64())) could not be translated [2023-11-29 01:05:54,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:05:54 BoogieIcfgContainer [2023-11-29 01:05:54,268 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:05:54,268 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:05:54,268 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:05:54,268 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:05:54,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:05:51" (3/4) ... [2023-11-29 01:05:54,270 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:05:54,276 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-29 01:05:54,277 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 01:05:54,277 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 01:05:54,277 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:05:54,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:05:54,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:05:54,363 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:05:54,364 INFO L158 Benchmark]: Toolchain (without parser) took 4816.81ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 45.9MB in the beginning and 63.7MB in the end (delta: -17.7MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2023-11-29 01:05:54,365 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:05:54,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.03ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 45.8MB in the beginning and 103.3MB in the end (delta: -57.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-11-29 01:05:54,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.86ms. Allocated memory is still 123.7MB. Free memory was 103.3MB in the beginning and 101.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:05:54,366 INFO L158 Benchmark]: Boogie Preprocessor took 67.19ms. Allocated memory is still 123.7MB. Free memory was 101.9MB in the beginning and 99.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:05:54,366 INFO L158 Benchmark]: RCFGBuilder took 1533.35ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 82.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 01:05:54,366 INFO L158 Benchmark]: TraceAbstraction took 2761.45ms. Allocated memory is still 123.7MB. Free memory was 81.7MB in the beginning and 68.5MB in the end (delta: 13.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-29 01:05:54,367 INFO L158 Benchmark]: Witness Printer took 95.49ms. Allocated memory is still 123.7MB. Free memory was 68.5MB in the beginning and 63.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:05:54,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.03ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 45.8MB in the beginning and 103.3MB in the end (delta: -57.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.86ms. Allocated memory is still 123.7MB. Free memory was 103.3MB in the beginning and 101.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.19ms. Allocated memory is still 123.7MB. Free memory was 101.9MB in the beginning and 99.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1533.35ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 82.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2761.45ms. Allocated memory is still 123.7MB. Free memory was 81.7MB in the beginning and 68.5MB in the end (delta: 13.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Witness Printer took 95.49ms. Allocated memory is still 123.7MB. Free memory was 68.5MB in the beginning and 63.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~x == ~fp.div~64(currentRoundingMode, ~Pluszero~64(), ~Pluszero~64())) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 97]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 58 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 11 QuantifiedInterpolants, 136 SizeOfPredicates, 14 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-29 01:05:54,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a0a08c1-eeaa-49a2-8fd8-6cb1cdc65b29/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE