./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl --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 d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:19:20,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:19:20,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:19:20,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:19:20,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:19:20,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:19:20,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:19:20,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:19:20,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:19:20,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:19:20,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:19:20,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:19:20,394 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:19:20,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:19:20,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:19:20,396 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:19:20,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:19:20,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:19:20,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:19:20,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:19:20,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:19:20,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:19:20,399 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:19:20,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:19:20,400 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:19:20,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:19:20,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:19:20,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:19:20,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:20,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:19:20,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:19:20,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:19:20,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:19:20,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:19:20,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:19:20,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:19:20,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:19:20,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:19:20,406 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:19:20,407 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_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 [2023-11-12 02:19:20,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:19:20,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:19:20,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:19:20,758 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:19:20,758 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:19:20,759 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2023-11-12 02:19:23,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:19:24,091 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:19:24,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2023-11-12 02:19:24,100 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data/2a370baf3/f6dc621669714604acbdcf7cd398993b/FLAG851c74e6a [2023-11-12 02:19:24,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data/2a370baf3/f6dc621669714604acbdcf7cd398993b [2023-11-12 02:19:24,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:19:24,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:19:24,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:24,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:19:24,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:19:24,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d2df01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24, skipping insertion in model container [2023-11-12 02:19:24,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,151 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:19:24,387 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_182e69c9-c41f-4e24-99d9-82c7813e1f3a/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2023-11-12 02:19:24,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:24,405 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:19:24,442 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_182e69c9-c41f-4e24-99d9-82c7813e1f3a/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2023-11-12 02:19:24,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:24,458 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:19:24,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24 WrapperNode [2023-11-12 02:19:24,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:24,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:24,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:19:24,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:19:24,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,499 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 103 [2023-11-12 02:19:24,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:24,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:19:24,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:19:24,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:19:24,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:19:24,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:19:24,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:19:24,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:19:24,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (1/1) ... [2023-11-12 02:19:24,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:24,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:24,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:19:24,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:19:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:19:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:19:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:19:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 02:19:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:19:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 02:19:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:19:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:19:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:19:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:19:24,748 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:19:24,750 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:19:25,035 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:19:25,041 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:19:25,044 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:19:25,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:25 BoogieIcfgContainer [2023-11-12 02:19:25,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:19:25,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:19:25,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:19:25,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:19:25,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:19:24" (1/3) ... [2023-11-12 02:19:25,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79095e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:25, skipping insertion in model container [2023-11-12 02:19:25,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:24" (2/3) ... [2023-11-12 02:19:25,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79095e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:25, skipping insertion in model container [2023-11-12 02:19:25,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:25" (3/3) ... [2023-11-12 02:19:25,058 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2023-11-12 02:19:25,078 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:19:25,078 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:19:25,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:25,158 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;@3ed2fea6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:25,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:19:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2023-11-12 02:19:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:19:25,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:25,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:25,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:25,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:25,183 INFO L85 PathProgramCache]: Analyzing trace with hash -959108981, now seen corresponding path program 1 times [2023-11-12 02:19:25,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:25,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572000362] [2023-11-12 02:19:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:25,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:25,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:25,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572000362] [2023-11-12 02:19:25,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572000362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:25,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:25,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:25,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877535969] [2023-11-12 02:19:25,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:25,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:19:25,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:25,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:19:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:19:25,432 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:25,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:25,456 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2023-11-12 02:19:25,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:19:25,459 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:19:25,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:25,470 INFO L225 Difference]: With dead ends: 66 [2023-11-12 02:19:25,470 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 02:19:25,473 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 [2023-11-12 02:19:25,479 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:25,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:19:25,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 02:19:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 02:19:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2023-11-12 02:19:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2023-11-12 02:19:25,520 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 10 [2023-11-12 02:19:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:25,521 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2023-11-12 02:19:25,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:25,522 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2023-11-12 02:19:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:19:25,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:25,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:25,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:19:25,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:25,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:25,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1000551118, now seen corresponding path program 1 times [2023-11-12 02:19:25,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:25,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151734616] [2023-11-12 02:19:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:25,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:25,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:19:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:25,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:19:25,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:19:25,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:19:25,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:19:25,733 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:19:25,736 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:19:25,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:19:25 BoogieIcfgContainer [2023-11-12 02:19:25,757 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:19:25,757 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:19:25,758 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:19:25,758 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:19:25,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:25" (3/4) ... [2023-11-12 02:19:25,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:19:25,762 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:19:25,763 INFO L158 Benchmark]: Toolchain (without parser) took 1643.06ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 113.7MB in the beginning and 173.2MB in the end (delta: -59.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:25,763 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 153.1MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:25,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.06ms. Allocated memory is still 153.1MB. Free memory was 113.3MB in the beginning and 102.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:19:25,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.51ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 100.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:19:25,765 INFO L158 Benchmark]: Boogie Preprocessor took 31.84ms. Allocated memory is still 153.1MB. Free memory was 100.4MB in the beginning and 99.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:25,765 INFO L158 Benchmark]: RCFGBuilder took 513.74ms. Allocated memory is still 153.1MB. Free memory was 99.1MB in the beginning and 84.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:19:25,766 INFO L158 Benchmark]: TraceAbstraction took 706.50ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 84.0MB in the beginning and 173.2MB in the end (delta: -89.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:25,766 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 205.5MB. Free memory is still 173.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:25,770 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 153.1MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.06ms. Allocated memory is still 153.1MB. Free memory was 113.3MB in the beginning and 102.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.51ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 100.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.84ms. Allocated memory is still 153.1MB. Free memory was 100.4MB in the beginning and 99.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 513.74ms. Allocated memory is still 153.1MB. Free memory was 99.1MB in the beginning and 84.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 706.50ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 84.0MB in the beginning and 173.2MB in the end (delta: -89.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 205.5MB. Free memory is still 173.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 73]: 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 someBinaryFLOATComparisonOperation at line 60, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L68] float x = 0.0f / 0.0f; [L69] CALL, EXPR floor_float(x) [L17] __int32_t i0, j0; [L18] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000009] [L20] ieee_float_shape_type gf_u; [L21] EXPR gf_u.value = (x) [L22] EXPR gf_u.word [L22] EXPR (i0) = gf_u.word [L19-L23] { ieee_float_shape_type gf_u; gf_u.value = (x); (i0) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, i0=2147483647, x=1000000000000000000000000000009] [L24] ix = (i0 & 0x7fffffff) [L25] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000009] [L26] COND FALSE !(j0 < 23) VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000009] [L46] COND TRUE !((ix) < 0x7f800000L) [L47] return x + x; VAL [\old(x)=1000000000000000000000000000009, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000009] [L69] RET, EXPR floor_float(x) [L69] float res = floor_float(x); [L72] CALL, EXPR isnan_float(res) [L60] return x != x; VAL [\old(x)=1000000000000000000000000000008, \result=0, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000008] [L72] RET, EXPR isnan_float(res) [L72] COND TRUE !isnan_float(res) [L73] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000008, x=1000000000000000000000000000009] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 0 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=34occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2023-11-12 02:19:25,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl --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 d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:19:28,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:19:28,549 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:19:28,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:19:28,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:19:28,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:19:28,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:19:28,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:19:28,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:19:28,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:19:28,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:19:28,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:19:28,601 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:19:28,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:19:28,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:19:28,604 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:19:28,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:19:28,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:19:28,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:19:28,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:19:28,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:19:28,608 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:19:28,608 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:19:28,609 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:19:28,609 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:19:28,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:19:28,610 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:19:28,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:19:28,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:19:28,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:19:28,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:28,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:19:28,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:19:28,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:19:28,614 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:19:28,614 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:19:28,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:19:28,615 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:19:28,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:19:28,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:19:28,616 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:19:28,617 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:19:28,617 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_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 [2023-11-12 02:19:29,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:19:29,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:19:29,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:19:29,108 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:19:29,112 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:19:29,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2023-11-12 02:19:32,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:19:32,667 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:19:32,668 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2023-11-12 02:19:32,679 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data/ab8e61567/ffecef425b7f4f5eb0a4dba7cac8c234/FLAG9b5c288ad [2023-11-12 02:19:32,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/data/ab8e61567/ffecef425b7f4f5eb0a4dba7cac8c234 [2023-11-12 02:19:32,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:19:32,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:19:32,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:32,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:19:32,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:19:32,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:32" (1/1) ... [2023-11-12 02:19:32,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70df74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:32, skipping insertion in model container [2023-11-12 02:19:32,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:32" (1/1) ... [2023-11-12 02:19:32,751 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:19:32,959 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_182e69c9-c41f-4e24-99d9-82c7813e1f3a/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2023-11-12 02:19:32,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:32,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:19:33,039 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_182e69c9-c41f-4e24-99d9-82c7813e1f3a/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2023-11-12 02:19:33,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:33,059 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:19:33,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33 WrapperNode [2023-11-12 02:19:33,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:33,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:33,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:19:33,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:19:33,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,121 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2023-11-12 02:19:33,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:33,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:19:33,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:19:33,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:19:33,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:19:33,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:19:33,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:19:33,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:19:33,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (1/1) ... [2023-11-12 02:19:33,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:33,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:33,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:19:33,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:19:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:19:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:19:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:19:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-12 02:19:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:19:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:19:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:19:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-12 02:19:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:19:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:19:33,462 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:19:33,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:19:34,003 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:19:34,009 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:19:34,009 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:19:34,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:34 BoogieIcfgContainer [2023-11-12 02:19:34,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:19:34,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:19:34,015 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:19:34,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:19:34,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:19:32" (1/3) ... [2023-11-12 02:19:34,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132d9ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:34, skipping insertion in model container [2023-11-12 02:19:34,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:33" (2/3) ... [2023-11-12 02:19:34,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132d9ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:34, skipping insertion in model container [2023-11-12 02:19:34,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:34" (3/3) ... [2023-11-12 02:19:34,022 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2023-11-12 02:19:34,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:19:34,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:19:34,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:34,097 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;@69537b06, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:34,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:19:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 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) [2023-11-12 02:19:34,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:19:34,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:34,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:34,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:34,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:34,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2023-11-12 02:19:34,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106944641] [2023-11-12 02:19:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:34,130 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 [2023-11-12 02:19:34,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:34,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:19:34,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:34,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:19:34,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:34,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:34,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:19:34,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106944641] [2023-11-12 02:19:34,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106944641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:34,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:34,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:34,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864446672] [2023-11-12 02:19:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:34,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:19:34,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:19:34,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:19:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:19:34,343 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:34,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:34,360 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2023-11-12 02:19:34,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:19:34,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:19:34,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:34,387 INFO L225 Difference]: With dead ends: 50 [2023-11-12 02:19:34,387 INFO L226 Difference]: Without dead ends: 23 [2023-11-12 02:19:34,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:19:34,394 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:34,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:19:34,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-12 02:19:34,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-12 02:19:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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) [2023-11-12 02:19:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2023-11-12 02:19:34,428 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2023-11-12 02:19:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:34,429 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2023-11-12 02:19:34,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:34,429 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-12 02:19:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:19:34,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:34,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:34,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:34,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:34,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:34,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2023-11-12 02:19:34,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:34,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273971338] [2023-11-12 02:19:34,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:34,647 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 [2023-11-12 02:19:34,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:34,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:19:34,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:34,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 02:19:34,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:34,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:19:34,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:19:34,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273971338] [2023-11-12 02:19:34,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273971338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:34,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:34,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:19:34,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444127774] [2023-11-12 02:19:34,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:34,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:19:34,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:19:34,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:19:34,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:19:34,977 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:35,398 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2023-11-12 02:19:35,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:19:35,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:19:35,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:35,399 INFO L225 Difference]: With dead ends: 34 [2023-11-12 02:19:35,399 INFO L226 Difference]: Without dead ends: 18 [2023-11-12 02:19:35,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:19:35,402 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:35,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 57 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:19:35,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-12 02:19:35,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-12 02:19:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-12 02:19:35,407 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2023-11-12 02:19:35,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:35,407 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-11-12 02:19:35,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,407 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-12 02:19:35,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:19:35,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:35,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:35,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:35,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:35,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:35,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2023-11-12 02:19:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:35,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730168871] [2023-11-12 02:19:35,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:35,625 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 [2023-11-12 02:19:35,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:35,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:19:35,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:35,769 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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)] Exception during sending of exit command (exit): Broken pipe [2023-11-12 02:19:35,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 139 [2023-11-12 02:19:35,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:19:35,970 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 37 more [2023-11-12 02:19:35,975 INFO L158 Benchmark]: Toolchain (without parser) took 3263.33ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 55.0MB in the beginning and 54.8MB in the end (delta: 228.2kB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-11-12 02:19:35,975 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:35,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.88ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 43.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:19:35,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.27ms. Allocated memory is still 79.7MB. Free memory was 43.3MB in the beginning and 41.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:19:35,977 INFO L158 Benchmark]: Boogie Preprocessor took 107.46ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 79.0MB in the end (delta: -37.3MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2023-11-12 02:19:35,977 INFO L158 Benchmark]: RCFGBuilder took 779.41ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 66.4MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:19:35,978 INFO L158 Benchmark]: TraceAbstraction took 1958.95ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 54.8MB in the end (delta: 10.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2023-11-12 02:19:35,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.88ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 43.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.27ms. Allocated memory is still 79.7MB. Free memory was 43.3MB in the beginning and 41.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 107.46ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 79.0MB in the end (delta: -37.3MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * RCFGBuilder took 779.41ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 66.4MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1958.95ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 54.8MB in the end (delta: 10.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-12 02:19:36,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_182e69c9-c41f-4e24-99d9-82c7813e1f3a/bin/uautomizer-verify-uTZkv6EMXl/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) with exit command (exit)) Received EOF on stdin. No stderr output.