./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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_7645cea9-62e6-48b2-81d4-765c39a70703/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 cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:57:48,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:57:48,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:57:48,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:57:48,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:57:48,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:57:48,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:57:48,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:57:48,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:57:48,255 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:57:48,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:57:48,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:57:48,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:57:48,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:57:48,258 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:57:48,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:57:48,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:57:48,259 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:57:48,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:57:48,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:57:48,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:57:48,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:57:48,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:57:48,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:57:48,263 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:57:48,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:57:48,264 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:57:48,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:57:48,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:57:48,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:57:48,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:57:48,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:57:48,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:57:48,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:57:48,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:57:48,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:57:48,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:57:48,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:57:48,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:57:48,267 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:57:48,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:57:48,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:57:48,268 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_7645cea9-62e6-48b2-81d4-765c39a70703/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f [2023-11-29 01:57:48,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:57:48,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:57:48,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:57:48,502 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:57:48,503 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:57:48,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2023-11-29 01:57:51,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:57:51,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:57:51,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2023-11-29 01:57:51,429 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data/4b9c8d9af/866ae4fe27f94ded8a60b8fadfa24dc8/FLAGaabd9b25b [2023-11-29 01:57:51,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data/4b9c8d9af/866ae4fe27f94ded8a60b8fadfa24dc8 [2023-11-29 01:57:51,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:57:51,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:57:51,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:57:51,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:57:51,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:57:51,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bfe60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51, skipping insertion in model container [2023-11-29 01:57:51,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,474 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:57:51,629 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_7645cea9-62e6-48b2-81d4-765c39a70703/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2023-11-29 01:57:51,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:57:51,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:57:51,670 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_7645cea9-62e6-48b2-81d4-765c39a70703/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2023-11-29 01:57:51,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:57:51,687 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:57:51,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51 WrapperNode [2023-11-29 01:57:51,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:57:51,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:57:51,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:57:51,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:57:51,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,729 INFO L138 Inliner]: procedures = 18, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 103 [2023-11-29 01:57:51,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:57:51,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:57:51,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:57:51,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:57:51,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,762 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 2, 3, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 2, 1]. [2023-11-29 01:57:51,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:57:51,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:57:51,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:57:51,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:57:51,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (1/1) ... [2023-11-29 01:57:51,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:57:51,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:51,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:57:51,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:57:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:57:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:57:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:57:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:57:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:57:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:57:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 01:57:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 01:57:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-29 01:57:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-29 01:57:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:57:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:57:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:57:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:57:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 01:57:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 01:57:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-29 01:57:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-29 01:57:51,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:57:51,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:57:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:57:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:57:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:57:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:57:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:57:51,967 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:57:51,969 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:57:52,167 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:57:52,192 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:57:52,192 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 01:57:52,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:52 BoogieIcfgContainer [2023-11-29 01:57:52,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:57:52,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:57:52,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:57:52,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:57:52,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:57:51" (1/3) ... [2023-11-29 01:57:52,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37010192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:57:52, skipping insertion in model container [2023-11-29 01:57:52,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:51" (2/3) ... [2023-11-29 01:57:52,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37010192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:57:52, skipping insertion in model container [2023-11-29 01:57:52,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:52" (3/3) ... [2023-11-29 01:57:52,205 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2023-11-29 01:57:52,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:57:52,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:57:52,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:57:52,284 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;@3467634e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:57:52,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:57:52,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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 01:57:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 01:57:52,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:52,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:52,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:57:52,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:52,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1546296685, now seen corresponding path program 1 times [2023-11-29 01:57:52,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:52,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413806587] [2023-11-29 01:57:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:52,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:52,468 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 01:57:52,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:52,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413806587] [2023-11-29 01:57:52,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413806587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:52,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:52,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:57:52,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312771008] [2023-11-29 01:57:52,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:52,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:57:52,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:52,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:57:52,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:57:52,501 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 01:57:52,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:52,538 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2023-11-29 01:57:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:57:52,541 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 01:57:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:52,564 INFO L225 Difference]: With dead ends: 43 [2023-11-29 01:57:52,564 INFO L226 Difference]: Without dead ends: 20 [2023-11-29 01:57:52,567 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 01:57:52,570 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:52,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:57:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-29 01:57:52,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-29 01:57:52,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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 01:57:52,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-11-29 01:57:52,606 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 13 [2023-11-29 01:57:52,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:52,606 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-11-29 01:57:52,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 01:57:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-29 01:57:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 01:57:52,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:52,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:52,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:57:52,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:57:52,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:52,609 INFO L85 PathProgramCache]: Analyzing trace with hash 596965605, now seen corresponding path program 1 times [2023-11-29 01:57:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:52,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059652974] [2023-11-29 01:57:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:53,000 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 01:57:53,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:53,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059652974] [2023-11-29 01:57:53,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059652974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:53,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:53,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:57:53,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056625837] [2023-11-29 01:57:53,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:53,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:53,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:53,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:53,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:53,004 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:53,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:53,058 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2023-11-29 01:57:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:57:53,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-29 01:57:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:53,059 INFO L225 Difference]: With dead ends: 28 [2023-11-29 01:57:53,059 INFO L226 Difference]: Without dead ends: 24 [2023-11-29 01:57:53,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:53,061 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:53,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 46 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:57:53,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-29 01:57:53,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-29 01:57:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 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 01:57:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-11-29 01:57:53,067 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2023-11-29 01:57:53,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:53,068 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-29 01:57:53,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-29 01:57:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:57:53,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:53,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:53,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:57:53,069 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:57:53,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1327414827, now seen corresponding path program 1 times [2023-11-29 01:57:53,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:53,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646836819] [2023-11-29 01:57:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:57:53,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:57:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:57:53,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:57:53,184 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:57:53,185 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:57:53,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:57:53,191 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 01:57:53,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:57:53,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 01:57:53,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 01:57:53,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:57:53 BoogieIcfgContainer [2023-11-29 01:57:53,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:57:53,220 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:57:53,220 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:57:53,221 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:57:53,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:52" (3/4) ... [2023-11-29 01:57:53,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:57:53,224 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:57:53,225 INFO L158 Benchmark]: Toolchain (without parser) took 1780.77ms. Allocated memory is still 146.8MB. Free memory was 109.0MB in the beginning and 65.3MB in the end (delta: 43.7MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2023-11-29 01:57:53,225 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:57:53,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.71ms. Allocated memory is still 146.8MB. Free memory was 108.5MB in the beginning and 97.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 01:57:53,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.40ms. Allocated memory is still 146.8MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:57:53,227 INFO L158 Benchmark]: Boogie Preprocessor took 52.06ms. Allocated memory is still 146.8MB. Free memory was 95.4MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:57:53,227 INFO L158 Benchmark]: RCFGBuilder took 410.56ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 77.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 01:57:53,228 INFO L158 Benchmark]: TraceAbstraction took 1023.22ms. Allocated memory is still 146.8MB. Free memory was 76.5MB in the beginning and 65.3MB in the end (delta: 11.2MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-11-29 01:57:53,228 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 146.8MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:57:53,230 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 104.9MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.71ms. Allocated memory is still 146.8MB. Free memory was 108.5MB in the beginning and 97.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.40ms. Allocated memory is still 146.8MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.06ms. Allocated memory is still 146.8MB. Free memory was 95.4MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.56ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 77.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1023.22ms. Allocated memory is still 146.8MB. Free memory was 76.5MB in the beginning and 65.3MB in the end (delta: 11.2MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 146.8MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 75]: 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 bitwiseOr at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 70. Possible FailurePath: [L70] double x = -1.0 / 0.0; [L71] CALL, EXPR fabs_double(x) [L47] __uint32_t high; VAL [\old(x)=4294967316, x=4294967316] [L49] ieee_double_shape_type gh_u; [L50] EXPR gh_u.value = (x) [L51] EXPR gh_u.parts.msw [L51] EXPR (high) = gh_u.parts.msw [L48-L52] { ieee_double_shape_type gh_u; gh_u.value = (x); (high) = gh_u.parts.msw; } VAL [\old(x)=4294967316, high=9, x=4294967316] [L54] ieee_double_shape_type sh_u; [L55] EXPR sh_u.value = (x) [L56] EXPR sh_u.parts.msw = (high & 0x7fffffff) [L57] EXPR sh_u.value [L57] EXPR (x) = sh_u.value [L53-L58] { ieee_double_shape_type sh_u; sh_u.value = (x); sh_u.parts.msw = (high & 0x7fffffff); (x) = sh_u.value; } VAL [\old(x)=4294967316, high=9, x=4294967316] [L59] return x; [L71] RET, EXPR fabs_double(x) [L71] double res = fabs_double(x); [L74] CALL, EXPR isinf_double(res) [L33] __int32_t hx, lx; VAL [\old(x)=4294967316, x=4294967316] [L35] ieee_double_shape_type ew_u; [L36] EXPR ew_u.value = (x) [L37] EXPR ew_u.parts.msw [L37] EXPR (hx) = ew_u.parts.msw [L38] EXPR ew_u.parts.lsw [L38] EXPR (lx) = ew_u.parts.lsw [L34-L39] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [\old(x)=4294967316, hx=-2147483648, lx=0, x=4294967316] [L40] hx &= 0x7fffffff VAL [\old(x)=4294967316, hx=0, lx=0, x=4294967316] [L41] EXPR lx | (-lx) VAL [\old(x)=4294967316, hx=0, lx=0, x=4294967316] [L41] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L42] hx = 0x7ff00000 - hx VAL [\old(x)=4294967316, hx=2146435072, lx=0, x=4294967316] [L43] EXPR hx | (-hx) VAL [\old(x)=4294967316, hx=2146435072, lx=0, x=4294967316] [L43] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L74] RET, EXPR isinf_double(res) [L74] COND TRUE !isinf_double(res) [L75] reach_error() VAL [res=4294967316, x=4294967316] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 42 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 01:57:53,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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_7645cea9-62e6-48b2-81d4-765c39a70703/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 cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:57:55,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:57:55,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 01:57:55,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:57:55,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:57:55,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:57:55,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:57:55,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:57:55,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:57:55,359 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:57:55,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:57:55,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:57:55,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:57:55,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:57:55,362 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:57:55,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:57:55,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:57:55,364 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:57:55,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:57:55,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:57:55,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:57:55,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:57:55,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:57:55,367 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:57:55,368 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:57:55,368 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:57:55,369 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:57:55,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:57:55,370 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:57:55,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:57:55,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:57:55,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:57:55,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:57:55,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:57:55,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:57:55,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:57:55,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:57:55,373 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:57:55,373 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:57:55,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:57:55,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:57:55,374 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:57:55,374 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:57:55,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:57:55,374 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:57:55,375 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_7645cea9-62e6-48b2-81d4-765c39a70703/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6b2c8924f3e77ddbe2cc4e366b62354008edf435e0402974f2ef8c5957612f [2023-11-29 01:57:55,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:57:55,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:57:55,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:57:55,688 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:57:55,689 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:57:55,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2023-11-29 01:57:58,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:57:58,714 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:57:58,715 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2023-11-29 01:57:58,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data/5b2971738/832e939c001744e882d6088faaec1382/FLAG501193899 [2023-11-29 01:57:58,738 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/data/5b2971738/832e939c001744e882d6088faaec1382 [2023-11-29 01:57:58,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:57:58,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:57:58,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:57:58,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:57:58,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:57:58,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:57:58" (1/1) ... [2023-11-29 01:57:58,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51621989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:58, skipping insertion in model container [2023-11-29 01:57:58,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:57:58" (1/1) ... [2023-11-29 01:57:58,772 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:57:58,937 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_7645cea9-62e6-48b2-81d4-765c39a70703/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2023-11-29 01:57:58,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:57:58,956 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:57:58,982 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_7645cea9-62e6-48b2-81d4-765c39a70703/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c[1640,1653] [2023-11-29 01:57:58,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:57:59,003 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:57:59,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59 WrapperNode [2023-11-29 01:57:59,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:57:59,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:57:59,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:57:59,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:57:59,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,047 INFO L138 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2023-11-29 01:57:59,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:57:59,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:57:59,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:57:59,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:57:59,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,066 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,082 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 2, 3, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2023-11-29 01:57:59,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:57:59,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:57:59,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:57:59,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:57:59,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (1/1) ... [2023-11-29 01:57:59,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:57:59,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:59,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:57:59,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:57:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:57:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-29 01:57:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-29 01:57:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-29 01:57:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-29 01:57:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-29 01:57:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-29 01:57:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-29 01:57:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-29 01:57:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:57:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 01:57:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 01:57:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 01:57:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:57:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 01:57:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 01:57:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 01:57:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 01:57:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:57:59,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:57:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 01:57:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 01:57:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 01:57:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 01:57:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:57:59,289 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:57:59,292 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:57:59,493 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:57:59,524 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:57:59,525 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 01:57:59,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:59 BoogieIcfgContainer [2023-11-29 01:57:59,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:57:59,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:57:59,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:57:59,531 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:57:59,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:57:58" (1/3) ... [2023-11-29 01:57:59,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8880fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:57:59, skipping insertion in model container [2023-11-29 01:57:59,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:59" (2/3) ... [2023-11-29 01:57:59,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8880fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:57:59, skipping insertion in model container [2023-11-29 01:57:59,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:59" (3/3) ... [2023-11-29 01:57:59,534 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2023-11-29 01:57:59,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:57:59,550 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:57:59,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:57:59,596 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;@2d71c607, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:57:59,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:57:59,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 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 01:57:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 01:57:59,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:59,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:59,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:57:59,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:59,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1048565048, now seen corresponding path program 1 times [2023-11-29 01:57:59,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:57:59,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993366929] [2023-11-29 01:57:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:59,622 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 01:57:59,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:57:59,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:57:59,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:57:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:59,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:57:59,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:59,737 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 01:57:59,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:59,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:57:59,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993366929] [2023-11-29 01:57:59,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993366929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:59,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:59,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:57:59,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540082398] [2023-11-29 01:57:59,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:59,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:57:59,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:57:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:57:59,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:57:59,772 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 01:57:59,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:59,797 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2023-11-29 01:57:59,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:57:59,799 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2023-11-29 01:57:59,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:59,805 INFO L225 Difference]: With dead ends: 27 [2023-11-29 01:57:59,805 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 01:57:59,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 01:57:59,811 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:59,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:57:59,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 01:57:59,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-29 01:57:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-29 01:57:59,838 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2023-11-29 01:57:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:59,838 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-29 01:57:59,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 01:57:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-29 01:57:59,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 01:57:59,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:59,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:59,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:58:00,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:58:00,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:58:00,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:00,044 INFO L85 PathProgramCache]: Analyzing trace with hash 690502168, now seen corresponding path program 1 times [2023-11-29 01:58:00,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:58:00,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645058186] [2023-11-29 01:58:00,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:00,046 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 01:58:00,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:58:00,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:58:00,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:58:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:00,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 01:58:00,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:01,095 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 01:58:01,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:01,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:58:01,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645058186] [2023-11-29 01:58:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645058186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:01,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:58:01,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309588125] [2023-11-29 01:58:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:01,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:58:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:58:01,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:58:01,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:58:01,101 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:58:01,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:01,458 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-29 01:58:01,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:58:01,459 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-29 01:58:01,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:01,460 INFO L225 Difference]: With dead ends: 12 [2023-11-29 01:58:01,460 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 01:58:01,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:58:01,462 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:01,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:58:01,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 01:58:01,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 01:58:01,464 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 01:58:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 01:58:01,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-29 01:58:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:01,465 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 01:58:01,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:58:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 01:58:01,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 01:58:01,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:58:01,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:58:01,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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 01:58:01,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 01:58:01,724 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 01:58:01,724 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2023-11-29 01:58:01,725 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 52) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start_fabs_double_~x#1|)) [2023-11-29 01:58:01,725 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-11-29 01:58:01,725 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 01:58:01,725 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 62 80) no Hoare annotation was computed. [2023-11-29 01:58:01,725 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 34 39) no Hoare annotation was computed. [2023-11-29 01:58:01,726 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 39) the Hoare annotation is: (exists ((|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_11| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (let ((.cse0 (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_11|)) .cse0) (= .cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|))) (= (let ((.cse1 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_11|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) |ULTIMATE.start_isinf_double_~x#1|)))) [2023-11-29 01:58:01,726 INFO L899 garLoopResultBuilder]: For program point L34-3(lines 34 39) no Hoare annotation was computed. [2023-11-29 01:58:01,726 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 75) no Hoare annotation was computed. [2023-11-29 01:58:01,726 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 58) no Hoare annotation was computed. [2023-11-29 01:58:01,727 INFO L895 garLoopResultBuilder]: At program point L53-1(lines 53 58) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_10| (_ BitVec 64))) (and (= |ULTIMATE.start_fabs_double_~high~0#1| ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_10|)) (= |ULTIMATE.start_fabs_double_~x#1| (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_10|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_10|))))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start_fabs_double_~x#1|))) [2023-11-29 01:58:01,727 INFO L899 garLoopResultBuilder]: For program point L53-2(lines 53 58) no Hoare annotation was computed. [2023-11-29 01:58:01,727 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 77) no Hoare annotation was computed. [2023-11-29 01:58:01,730 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 01:58:01,733 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:58:01,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) == ~x) could not be translated [2023-11-29 01:58:01,742 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_10 : bv64 :: ~high~0 == v_skolemized_q#valueAsBitvector_10[63:32] && ~x == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0])) could not be translated [2023-11-29 01:58:01,742 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) == ~x) could not be translated [2023-11-29 01:58:01,743 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_10 : bv64, v_skolemized_q#valueAsBitvector_11 : bv64, currentRoundingMode : FloatRoundingMode :: (~fp~64(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) && ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0])) && ~fp~64((~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32]) ++ v_skolemized_q#valueAsBitvector_11[31:0])[63:63], (~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32]) ++ v_skolemized_q#valueAsBitvector_11[31:0])[62:52], (~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32]) ++ v_skolemized_q#valueAsBitvector_11[31:0])[51:0]) == ~x) could not be translated [2023-11-29 01:58:01,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:58:01 BoogieIcfgContainer [2023-11-29 01:58:01,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:58:01,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:58:01,744 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:58:01,745 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:58:01,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:59" (3/4) ... [2023-11-29 01:58:01,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:58:01,755 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-29 01:58:01,755 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 01:58:01,755 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 01:58:01,755 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:58:01,822 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:58:01,822 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:58:01,822 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:58:01,823 INFO L158 Benchmark]: Toolchain (without parser) took 3080.75ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 60.0MB in the end (delta: 9.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-29 01:58:01,823 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:58:01,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.83ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 57.3MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 01:58:01,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 55.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:58:01,824 INFO L158 Benchmark]: Boogie Preprocessor took 55.80ms. Allocated memory is still 92.3MB. Free memory was 55.5MB in the beginning and 52.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:58:01,824 INFO L158 Benchmark]: RCFGBuilder took 420.44ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 65.2MB in the end (delta: -12.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-29 01:58:01,825 INFO L158 Benchmark]: TraceAbstraction took 2215.80ms. Allocated memory is still 92.3MB. Free memory was 64.6MB in the beginning and 64.2MB in the end (delta: 397.4kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2023-11-29 01:58:01,825 INFO L158 Benchmark]: Witness Printer took 77.96ms. Allocated memory is still 92.3MB. Free memory was 64.2MB in the beginning and 60.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:58:01,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.83ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 57.3MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 55.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.80ms. Allocated memory is still 92.3MB. Free memory was 55.5MB in the beginning and 52.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 420.44ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 65.2MB in the end (delta: -12.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2215.80ms. Allocated memory is still 92.3MB. Free memory was 64.6MB in the beginning and 64.2MB in the end (delta: 397.4kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. * Witness Printer took 77.96ms. Allocated memory is still 92.3MB. Free memory was 64.2MB in the beginning and 60.0MB in the end (delta: 4.2MB). 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 :: ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_10 : bv64 :: ~high~0 == v_skolemized_q#valueAsBitvector_10[63:32] && ~x == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0])) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_10 : bv64, v_skolemized_q#valueAsBitvector_11 : bv64, currentRoundingMode : FloatRoundingMode :: (~fp~64(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) && ~fp.div~64(currentRoundingMode, ~fp.neg~64(~to_fp~64(currentRoundingMode, 1.0)), ~Pluszero~64()) == ~fp~64(v_skolemized_q#valueAsBitvector_10[63:63], v_skolemized_q#valueAsBitvector_10[62:52], v_skolemized_q#valueAsBitvector_10[51:0])) && ~fp~64((~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32]) ++ v_skolemized_q#valueAsBitvector_11[31:0])[63:63], (~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32]) ++ v_skolemized_q#valueAsBitvector_11[31:0])[62:52], (~bvand~32(2147483647bv32, v_skolemized_q#valueAsBitvector_10[63:32]) ++ v_skolemized_q#valueAsBitvector_11[31:0])[51:0]) == ~x) 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: 75]: 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 95 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 9 QuantifiedInterpolants, 499 SizeOfPredicates, 12 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 48]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-29 01:58:01,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7645cea9-62e6-48b2-81d4-765c39a70703/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