./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:28,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:28,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:42:29,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:29,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:29,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:29,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:29,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:29,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:29,049 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:29,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:29,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:29,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:29,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:29,053 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:29,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:29,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:29,055 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:29,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:29,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:29,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:29,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:29,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:29,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:29,059 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:29,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:29,060 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:29,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:29,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:29,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:29,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:29,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:29,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:29,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:29,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:29,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:29,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:42:29,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:29,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:29,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:29,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:29,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:29,067 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_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2023-11-26 10:42:29,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:29,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:29,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:29,423 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:29,424 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:29,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2023-11-26 10:42:32,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:32,781 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:32,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2023-11-26 10:42:32,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data/ec52ada7c/7a0a24276fcf4532875ea0a177da2c96/FLAGd0b146ae4 [2023-11-26 10:42:32,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data/ec52ada7c/7a0a24276fcf4532875ea0a177da2c96 [2023-11-26 10:42:32,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:32,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:32,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:32,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:32,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:32,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:32" (1/1) ... [2023-11-26 10:42:32,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2443fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:32, skipping insertion in model container [2023-11-26 10:42:32,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:32" (1/1) ... [2023-11-26 10:42:32,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:33,149 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_7bf5c332-4630-417e-8df1-8a6885c830c3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2023-11-26 10:42:33,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:33,166 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:33,249 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_7bf5c332-4630-417e-8df1-8a6885c830c3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2023-11-26 10:42:33,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:33,265 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:33,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33 WrapperNode [2023-11-26 10:42:33,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:33,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:33,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:33,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:33,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,321 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-26 10:42:33,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:33,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:33,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:33,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:33,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,364 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2023-11-26 10:42:33,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:33,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:33,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:33,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:33,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (1/1) ... [2023-11-26 10:42:33,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:33,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:33,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:33,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:42:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:42:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:42:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:42:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 10:42:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 10:42:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 10:42:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 10:42:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 10:42:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 10:42:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 10:42:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 10:42:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 10:42:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 10:42:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 10:42:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-26 10:42:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-26 10:42:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:42:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 10:42:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 10:42:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 10:42:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 10:42:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-26 10:42:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-26 10:42:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-26 10:42:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-26 10:42:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-26 10:42:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-11-26 10:42:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2023-11-26 10:42:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2023-11-26 10:42:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2023-11-26 10:42:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2023-11-26 10:42:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2023-11-26 10:42:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2023-11-26 10:42:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2023-11-26 10:42:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:42:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:42:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:42:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:42:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 10:42:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 10:42:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 10:42:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 10:42:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 10:42:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 10:42:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 10:42:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 10:42:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 10:42:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 10:42:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 10:42:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-26 10:42:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-26 10:42:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 10:42:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 10:42:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-26 10:42:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-26 10:42:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-26 10:42:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-26 10:42:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-26 10:42:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-26 10:42:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-11-26 10:42:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2023-11-26 10:42:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2023-11-26 10:42:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2023-11-26 10:42:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2023-11-26 10:42:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2023-11-26 10:42:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2023-11-26 10:42:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2023-11-26 10:42:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2023-11-26 10:42:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 10:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 10:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 10:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 10:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 10:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 10:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 10:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 10:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 10:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 10:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 10:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-26 10:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-26 10:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-26 10:42:33,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-26 10:42:33,867 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:33,870 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:34,401 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:34,443 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:34,443 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-26 10:42:34,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:34 BoogieIcfgContainer [2023-11-26 10:42:34,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:34,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:34,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:34,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:34,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:32" (1/3) ... [2023-11-26 10:42:34,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29948026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:34, skipping insertion in model container [2023-11-26 10:42:34,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:33" (2/3) ... [2023-11-26 10:42:34,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29948026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:34, skipping insertion in model container [2023-11-26 10:42:34,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:34" (3/3) ... [2023-11-26 10:42:34,459 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2023-11-26 10:42:34,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:34,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:42:34,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:34,561 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;@2b2e9677, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:34,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:42:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 85 states have (on average 1.7294117647058824) internal successors, (147), 86 states have internal predecessors, (147), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:42:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 10:42:34,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:34,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:34,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:34,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:34,580 INFO L85 PathProgramCache]: Analyzing trace with hash 104911489, now seen corresponding path program 1 times [2023-11-26 10:42:34,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:34,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715550276] [2023-11-26 10:42:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:34,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:34,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715550276] [2023-11-26 10:42:34,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715550276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:34,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:34,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:34,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540797763] [2023-11-26 10:42:34,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:34,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:34,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:34,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:34,809 INFO L87 Difference]: Start difference. First operand has 90 states, 85 states have (on average 1.7294117647058824) internal successors, (147), 86 states have internal predecessors, (147), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-26 10:42:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:34,855 INFO L93 Difference]: Finished difference Result 179 states and 303 transitions. [2023-11-26 10:42:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:34,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-26 10:42:34,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:34,866 INFO L225 Difference]: With dead ends: 179 [2023-11-26 10:42:34,866 INFO L226 Difference]: Without dead ends: 88 [2023-11-26 10:42:34,870 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 [2023-11-26 10:42:34,874 INFO L413 NwaCegarLoop]: 111 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, 111 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 [2023-11-26 10:42:34,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:34,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-26 10:42:34,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-26 10:42:34,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 84 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:42:34,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 113 transitions. [2023-11-26 10:42:34,919 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 113 transitions. Word has length 14 [2023-11-26 10:42:34,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:34,919 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 113 transitions. [2023-11-26 10:42:34,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-26 10:42:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 113 transitions. [2023-11-26 10:42:34,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 10:42:34,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:34,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:34,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:42:34,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:34,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:34,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1553430405, now seen corresponding path program 1 times [2023-11-26 10:42:34,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:34,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385575039] [2023-11-26 10:42:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:34,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:35,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:35,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:35,167 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:35,184 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:42:35,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:42:35,190 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 10:42:35,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:42:35,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:42:35 BoogieIcfgContainer [2023-11-26 10:42:35,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:42:35,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:42:35,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:42:35,250 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:42:35,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:34" (3/4) ... [2023-11-26 10:42:35,253 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:42:35,254 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:42:35,256 INFO L158 Benchmark]: Toolchain (without parser) took 2432.66ms. Allocated memory was 119.5MB in the beginning and 163.6MB in the end (delta: 44.0MB). Free memory was 74.1MB in the beginning and 129.9MB in the end (delta: -55.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:35,256 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:35,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.30ms. Allocated memory is still 119.5MB. Free memory was 74.1MB in the beginning and 59.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 10:42:35,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.63ms. Allocated memory is still 119.5MB. Free memory was 59.8MB in the beginning and 57.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:35,263 INFO L158 Benchmark]: Boogie Preprocessor took 99.53ms. Allocated memory is still 119.5MB. Free memory was 57.3MB in the beginning and 52.3MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:42:35,263 INFO L158 Benchmark]: RCFGBuilder took 1021.86ms. Allocated memory was 119.5MB in the beginning and 163.6MB in the end (delta: 44.0MB). Free memory was 52.3MB in the beginning and 110.8MB in the end (delta: -58.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-11-26 10:42:35,264 INFO L158 Benchmark]: TraceAbstraction took 801.21ms. Allocated memory is still 163.6MB. Free memory was 109.6MB in the beginning and 131.0MB in the end (delta: -21.3MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2023-11-26 10:42:35,264 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 129.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:35,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.30ms. Allocated memory is still 119.5MB. Free memory was 74.1MB in the beginning and 59.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.63ms. Allocated memory is still 119.5MB. Free memory was 59.8MB in the beginning and 57.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.53ms. Allocated memory is still 119.5MB. Free memory was 57.3MB in the beginning and 52.3MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1021.86ms. Allocated memory was 119.5MB in the beginning and 163.6MB in the end (delta: 44.0MB). Free memory was 52.3MB in the beginning and 110.8MB in the end (delta: -58.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 801.21ms. Allocated memory is still 163.6MB. Free memory was 109.6MB in the beginning and 131.0MB in the end (delta: -21.3MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 129.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 237]: 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 someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = -1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=251658244, \old(y)=251658245, a=251658244, b=251658245, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L88] ieee_float_shape_type gf_u; [L89] EXPR gf_u.value = (x) [L90] EXPR gf_u.word [L90] EXPR (ha) = gf_u.word [L87-L91] { ieee_float_shape_type gf_u; gf_u.value = (x); (ha) = gf_u.word; } VAL [\old(x)=251658244, \old(y)=251658245, a=251658244, b=251658245, ha=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L92] ha &= 0x7fffffffL VAL [\old(x)=251658244, \old(y)=251658245, a=251658244, b=251658245, ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L94] ieee_float_shape_type gf_u; [L95] EXPR gf_u.value = (y) [L96] EXPR gf_u.word [L96] EXPR (hb) = gf_u.word [L93-L97] { ieee_float_shape_type gf_u; gf_u.value = (y); (hb) = gf_u.word; } VAL [\old(x)=251658244, \old(y)=251658245, a=251658244, b=251658245, ha=0, hb=-1895825407, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L98] hb &= 0x7fffffffL VAL [\old(x)=251658244, \old(y)=251658245, a=251658244, b=251658245, ha=0, hb=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=251658244, \old(y)=251658245, a=251658245, b=251658244, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L110] ieee_float_shape_type sf_u; [L111] EXPR sf_u.word = (ha) [L112] EXPR sf_u.value [L112] EXPR (a) = sf_u.value [L109-L113] { ieee_float_shape_type sf_u; sf_u.word = (ha); (a) = sf_u.value; } VAL [\old(x)=251658244, \old(y)=251658245, a=251658242, b=251658244, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L115] ieee_float_shape_type sf_u; [L116] EXPR sf_u.word = (hb) [L117] EXPR sf_u.value [L117] EXPR (b) = sf_u.value [L114-L118] { ieee_float_shape_type sf_u; sf_u.word = (hb); (b) = sf_u.value; } VAL [\old(x)=251658244, \old(y)=251658245, a=251658242, b=251658246, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=251658244, \old(y)=251658245, a=251658242, b=251658246, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243] [L216] ieee_float_shape_type gf_u; [L217] EXPR gf_u.value = (x) [L218] EXPR gf_u.word [L218] EXPR (ix) = gf_u.word [L215-L219] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=251658243, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243] [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, res=251658243, tiny_sqrt=1/1000000000000000000000000000000, x=251658244, y=251658245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 111 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 10:42:35,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:37,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:38,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:42:38,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:38,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:38,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:38,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:38,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:38,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:38,124 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:38,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:38,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:38,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:38,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:38,128 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:38,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:38,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:38,130 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:38,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:38,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:38,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:38,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:38,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:38,133 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:42:38,133 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:42:38,133 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:42:38,134 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:38,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:38,135 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:38,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:38,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:38,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:38,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:38,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:38,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:38,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:38,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:38,139 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:42:38,139 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:42:38,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:38,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:38,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:38,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:38,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:38,141 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:42:38,141 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_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2023-11-26 10:42:38,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:38,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:38,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:38,591 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:38,593 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:38,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2023-11-26 10:42:41,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:41,990 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:41,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2023-11-26 10:42:42,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data/f0995aa90/b673c6d50afa4add8d42eb871a20d825/FLAG131b9d92b [2023-11-26 10:42:42,026 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/data/f0995aa90/b673c6d50afa4add8d42eb871a20d825 [2023-11-26 10:42:42,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:42,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:42,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:42,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:42,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:42,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd16b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42, skipping insertion in model container [2023-11-26 10:42:42,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:42,292 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_7bf5c332-4630-417e-8df1-8a6885c830c3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2023-11-26 10:42:42,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:42,310 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:42,386 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_7bf5c332-4630-417e-8df1-8a6885c830c3/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2023-11-26 10:42:42,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:42,405 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:42,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42 WrapperNode [2023-11-26 10:42:42,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:42,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:42,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:42,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:42,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,496 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-26 10:42:42,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:42,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:42,497 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:42,497 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:42,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,522 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,570 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2023-11-26 10:42:42,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:42,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:42,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:42,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:42,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (1/1) ... [2023-11-26 10:42:42,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:42,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:42,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:42,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:42:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 10:42:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 10:42:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 10:42:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-26 10:42:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-26 10:42:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-26 10:42:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-26 10:42:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-26 10:42:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-11-26 10:42:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-11-26 10:42:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-11-26 10:42:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-11-26 10:42:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-11-26 10:42:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-11-26 10:42:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-11-26 10:42:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-11-26 10:42:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:42:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-26 10:42:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-26 10:42:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-26 10:42:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-26 10:42:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-26 10:42:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-11-26 10:42:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-11-26 10:42:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-11-26 10:42:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-11-26 10:42:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-11-26 10:42:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2023-11-26 10:42:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2023-11-26 10:42:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2023-11-26 10:42:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2023-11-26 10:42:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2023-11-26 10:42:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2023-11-26 10:42:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2023-11-26 10:42:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 10:42:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 10:42:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 10:42:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 10:42:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-26 10:42:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-26 10:42:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-26 10:42:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-26 10:42:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-11-26 10:42:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-11-26 10:42:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-11-26 10:42:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-11-26 10:42:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-11-26 10:42:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-11-26 10:42:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-11-26 10:42:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-11-26 10:42:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-11-26 10:42:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:42,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-26 10:42:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-26 10:42:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-26 10:42:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-26 10:42:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-26 10:42:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-11-26 10:42:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-11-26 10:42:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-11-26 10:42:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-11-26 10:42:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-11-26 10:42:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2023-11-26 10:42:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2023-11-26 10:42:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2023-11-26 10:42:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2023-11-26 10:42:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2023-11-26 10:42:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2023-11-26 10:42:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2023-11-26 10:42:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 10:42:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 10:42:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 10:42:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 10:42:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-26 10:42:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-26 10:42:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-26 10:42:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-26 10:42:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-11-26 10:42:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-11-26 10:42:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-11-26 10:42:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-11-26 10:42:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-11-26 10:42:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-11-26 10:42:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-11-26 10:42:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2023-11-26 10:42:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2023-11-26 10:42:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:42:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-26 10:42:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-26 10:42:43,001 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:43,003 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:45,360 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:45,399 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:45,399 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-26 10:42:45,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:45 BoogieIcfgContainer [2023-11-26 10:42:45,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:45,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:45,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:45,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:45,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:42" (1/3) ... [2023-11-26 10:42:45,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b78c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:45, skipping insertion in model container [2023-11-26 10:42:45,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:42" (2/3) ... [2023-11-26 10:42:45,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b78c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:45, skipping insertion in model container [2023-11-26 10:42:45,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:45" (3/3) ... [2023-11-26 10:42:45,411 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2023-11-26 10:42:45,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:45,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:42:45,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:45,503 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;@33af1d06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:45,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:42:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 80 states have (on average 1.725) internal successors, (138), 81 states have internal predecessors, (138), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:42:45,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 10:42:45,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:45,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:45,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:45,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:45,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1194043807, now seen corresponding path program 1 times [2023-11-26 10:42:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:42:45,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041880558] [2023-11-26 10:42:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:45,539 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 [2023-11-26 10:42:45,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:42:45,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:42:45,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:42:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:45,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:42:45,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:45,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:45,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:42:45,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041880558] [2023-11-26 10:42:45,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041880558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:45,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:45,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991830912] [2023-11-26 10:42:45,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:45,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:45,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:42:45,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:45,928 INFO L87 Difference]: Start difference. First operand has 85 states, 80 states have (on average 1.725) internal successors, (138), 81 states have internal predecessors, (138), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-26 10:42:46,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:46,011 INFO L93 Difference]: Finished difference Result 169 states and 285 transitions. [2023-11-26 10:42:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:46,016 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-26 10:42:46,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:46,027 INFO L225 Difference]: With dead ends: 169 [2023-11-26 10:42:46,027 INFO L226 Difference]: Without dead ends: 83 [2023-11-26 10:42:46,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:46,036 INFO L413 NwaCegarLoop]: 103 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, 103 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 [2023-11-26 10:42:46,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:46,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-26 10:42:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-26 10:42:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 79 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:42:46,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 105 transitions. [2023-11-26 10:42:46,096 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 105 transitions. Word has length 14 [2023-11-26 10:42:46,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:46,102 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 105 transitions. [2023-11-26 10:42:46,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-26 10:42:46,103 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 105 transitions. [2023-11-26 10:42:46,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 10:42:46,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:46,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:46,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 10:42:46,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:42:46,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:42:46,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:46,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1437365582, now seen corresponding path program 1 times [2023-11-26 10:42:46,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:42:46,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925195284] [2023-11-26 10:42:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:46,312 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 [2023-11-26 10:42:46,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:42:46,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:42:46,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:42:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:46,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 10:42:46,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:46,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-26 10:42:46,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-11-26 10:42:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:47,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:47,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:42:47,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925195284] [2023-11-26 10:42:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925195284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:47,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:42:47,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337259985] [2023-11-26 10:42:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:47,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:42:47,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:42:47,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:42:47,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:42:47,313 INFO L87 Difference]: Start difference. First operand 83 states and 105 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2023-11-26 10:42:53,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:42:56,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:42:58,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:43:02,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:43:06,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:43:10,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:43:14,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:43:14,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:14,607 INFO L93 Difference]: Finished difference Result 184 states and 234 transitions. [2023-11-26 10:43:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:43:14,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2023-11-26 10:43:14,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:14,663 INFO L225 Difference]: With dead ends: 184 [2023-11-26 10:43:14,663 INFO L226 Difference]: Without dead ends: 117 [2023-11-26 10:43:14,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:43:14,665 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 149 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 11 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:14,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 350 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 123 Invalid, 7 Unknown, 0 Unchecked, 26.8s Time] [2023-11-26 10:43:14,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-26 10:43:14,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 93. [2023-11-26 10:43:14,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.247191011235955) internal successors, (111), 89 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:43:14,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2023-11-26 10:43:14,697 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 19 [2023-11-26 10:43:14,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:14,698 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2023-11-26 10:43:14,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2023-11-26 10:43:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2023-11-26 10:43:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 10:43:14,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:14,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:14,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:14,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:43:14,901 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:14,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:14,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1695531020, now seen corresponding path program 1 times [2023-11-26 10:43:14,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:43:14,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772806734] [2023-11-26 10:43:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:14,902 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 [2023-11-26 10:43:14,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:43:14,903 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:43:14,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bf5c332-4630-417e-8df1-8a6885c830c3/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 10:43:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:15,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-26 10:43:15,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:19,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:19,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:43:19,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772806734] [2023-11-26 10:43:19,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772806734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:19,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:19,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:43:19,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414919073] [2023-11-26 10:43:19,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:19,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 10:43:19,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:43:19,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 10:43:19,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:43:19,249 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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) [2023-11-26 10:43:32,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []