./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx --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 fc8d9f198c941dbfc5c9560047ba7ce9021782378982a3316378371e936db38e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:04:01,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:04:01,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 21:04:01,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:04:01,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:04:01,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:04:01,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:04:01,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:04:01,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:04:01,906 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:04:01,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:04:01,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:04:01,908 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:04:01,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:04:01,909 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:04:01,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:04:01,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:04:01,911 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:04:01,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:04:01,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:04:01,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:04:01,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:04:01,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:04:01,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:04:01,914 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:04:01,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:04:01,915 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:04:01,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:04:01,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:04:01,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:04:01,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:04:01,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:04:01,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:04:01,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:04:01,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:04:01,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:04:01,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:04:01,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:04:01,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:04:01,920 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:04:01,921 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:04:01,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:04:01,921 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_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc8d9f198c941dbfc5c9560047ba7ce9021782378982a3316378371e936db38e [2023-11-21 21:04:02,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:04:02,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:04:02,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:04:02,270 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:04:02,271 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:04:02,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i [2023-11-21 21:04:05,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:04:05,755 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:04:05,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i [2023-11-21 21:04:05,778 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data/92b5bb99f/3f3e737ff6a94c9c985ecbccb44b2bd2/FLAGcc4138402 [2023-11-21 21:04:05,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data/92b5bb99f/3f3e737ff6a94c9c985ecbccb44b2bd2 [2023-11-21 21:04:05,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:04:05,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:04:05,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:04:05,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:04:05,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:04:05,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:05" (1/1) ... [2023-11-21 21:04:05,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc32b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:05, skipping insertion in model container [2023-11-21 21:04:05,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:05" (1/1) ... [2023-11-21 21:04:05,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:04:06,136 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:04:06,503 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 21:04:06,504 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_cdb21255-1954-4dfd-8507-109a06a120bf/sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i[62989,63002] [2023-11-21 21:04:06,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:04:06,521 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:04:06,544 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:04:06,591 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 21:04:06,593 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_cdb21255-1954-4dfd-8507-109a06a120bf/sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i[62989,63002] [2023-11-21 21:04:06,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:04:06,713 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:04:06,713 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:04:06,721 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:04:06,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06 WrapperNode [2023-11-21 21:04:06,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:04:06,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:04:06,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:04:06,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:04:06,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,790 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-11-21 21:04:06,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:04:06,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:04:06,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:04:06,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:04:06,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,811 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,822 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 21:04:06,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:04:06,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:04:06,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:04:06,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:04:06,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (1/1) ... [2023-11-21 21:04:06,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:04:06,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:04:06,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:04:06,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:04:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:04:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:04:06,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:04:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 21:04:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:04:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:04:07,153 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:04:07,156 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:04:07,278 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:04:07,356 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:04:07,356 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:04:07,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:07 BoogieIcfgContainer [2023-11-21 21:04:07,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:04:07,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:04:07,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:04:07,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:04:07,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:04:05" (1/3) ... [2023-11-21 21:04:07,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39337b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:07, skipping insertion in model container [2023-11-21 21:04:07,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:06" (2/3) ... [2023-11-21 21:04:07,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39337b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:07, skipping insertion in model container [2023-11-21 21:04:07,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:07" (3/3) ... [2023-11-21 21:04:07,370 INFO L112 eAbstractionObserver]: Analyzing ICFG log_0_safe.c-amalgamation.i [2023-11-21 21:04:07,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:04:07,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:04:07,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:04:07,443 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;@26fd10ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:04:07,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:04:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-21 21:04:07,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 21:04:07,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:04:07,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 21:04:07,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:04:07,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 21:04:07,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:04:07,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082195182] [2023-11-21 21:04:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:07,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:04:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:04:07,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:04:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:04:07,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:04:07,591 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:04:07,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:04:07,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:04:07,599 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:04:07,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:04:07,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:04:07 BoogieIcfgContainer [2023-11-21 21:04:07,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:04:07,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:04:07,618 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:04:07,618 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:04:07,618 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:07" (3/4) ... [2023-11-21 21:04:07,621 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:04:07,622 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:04:07,623 INFO L158 Benchmark]: Toolchain (without parser) took 1825.17ms. Allocated memory is still 148.9MB. Free memory was 108.2MB in the beginning and 96.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-21 21:04:07,623 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:04:07,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 923.33ms. Allocated memory is still 148.9MB. Free memory was 108.2MB in the beginning and 52.2MB in the end (delta: 55.9MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-21 21:04:07,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.64ms. Allocated memory is still 148.9MB. Free memory was 52.2MB in the beginning and 49.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:04:07,626 INFO L158 Benchmark]: Boogie Preprocessor took 47.31ms. Allocated memory is still 148.9MB. Free memory was 49.4MB in the beginning and 48.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:04:07,626 INFO L158 Benchmark]: RCFGBuilder took 518.57ms. Allocated memory is still 148.9MB. Free memory was 47.4MB in the beginning and 109.6MB in the end (delta: -62.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 21:04:07,627 INFO L158 Benchmark]: TraceAbstraction took 255.98ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 96.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:04:07,628 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 148.9MB. Free memory was 96.1MB in the beginning and 96.1MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:04:07,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 104.9MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 923.33ms. Allocated memory is still 148.9MB. Free memory was 108.2MB in the beginning and 52.2MB in the end (delta: 55.9MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.64ms. Allocated memory is still 148.9MB. Free memory was 52.2MB in the beginning and 49.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.31ms. Allocated memory is still 148.9MB. Free memory was 49.4MB in the beginning and 48.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 518.57ms. Allocated memory is still 148.9MB. Free memory was 47.4MB in the beginning and 109.6MB in the end (delta: -62.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 255.98ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 96.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 148.9MB. Free memory was 96.1MB in the beginning and 96.1MB in the end (delta: 2.6kB). 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: 850]: 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 logf at line 849, overapproximation of someBinaryFLOATComparisonOperation at line 848. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isless(x, 0.0f))) [L849] float y = logf(x); [L850] COND TRUE !(__builtin_isnan (y)) [L850] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-21 21:04:07,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx --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 fc8d9f198c941dbfc5c9560047ba7ce9021782378982a3316378371e936db38e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:04:10,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:04:10,356 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 21:04:10,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:04:10,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:04:10,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:04:10,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:04:10,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:04:10,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:04:10,408 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:04:10,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:04:10,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:04:10,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:04:10,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:04:10,412 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:04:10,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:04:10,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:04:10,414 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:04:10,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:04:10,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:04:10,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:04:10,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:04:10,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:04:10,417 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 21:04:10,417 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 21:04:10,418 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 21:04:10,418 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:04:10,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:04:10,419 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:04:10,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:04:10,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:04:10,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:04:10,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:04:10,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:04:10,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:04:10,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:04:10,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:04:10,422 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 21:04:10,422 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 21:04:10,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:04:10,423 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:04:10,423 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:04:10,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:04:10,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:04:10,424 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 21:04:10,424 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_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc8d9f198c941dbfc5c9560047ba7ce9021782378982a3316378371e936db38e [2023-11-21 21:04:10,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:04:10,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:04:10,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:04:10,926 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:04:10,928 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:04:10,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i [2023-11-21 21:04:14,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:04:14,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:04:14,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i [2023-11-21 21:04:14,507 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data/90c2507cb/3f3080d349ed40cd856a27fbe3412079/FLAGdaf25694b [2023-11-21 21:04:14,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/data/90c2507cb/3f3080d349ed40cd856a27fbe3412079 [2023-11-21 21:04:14,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:04:14,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:04:14,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:04:14,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:04:14,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:04:14,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:14" (1/1) ... [2023-11-21 21:04:14,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d425ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:14, skipping insertion in model container [2023-11-21 21:04:14,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:14" (1/1) ... [2023-11-21 21:04:14,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:04:14,853 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:04:15,585 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 21:04:15,587 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_cdb21255-1954-4dfd-8507-109a06a120bf/sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i[62989,63002] [2023-11-21 21:04:15,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:04:15,609 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:04:15,637 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:04:15,662 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 21:04:15,662 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_cdb21255-1954-4dfd-8507-109a06a120bf/sv-benchmarks/c/neural-networks/log_0_safe.c-amalgamation.i[62989,63002] [2023-11-21 21:04:15,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:04:15,880 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:04:15,883 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:04:15,889 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:04:15,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15 WrapperNode [2023-11-21 21:04:15,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:04:15,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:04:15,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:04:15,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:04:15,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:15,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:15,957 INFO L138 Inliner]: procedures = 560, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-11-21 21:04:15,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:04:15,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:04:15,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:04:15,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:04:15,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:15,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:15,985 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:15,994 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 21:04:15,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:15,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:16,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:16,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:16,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:16,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:16,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:04:16,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:04:16,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:04:16,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:04:16,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (1/1) ... [2023-11-21 21:04:16,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:04:16,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:04:16,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:04:16,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:04:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 21:04:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 21:04:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:04:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:04:16,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:04:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 21:04:16,255 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:04:16,258 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:04:16,401 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:04:16,472 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:04:16,472 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:04:16,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:16 BoogieIcfgContainer [2023-11-21 21:04:16,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:04:16,476 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:04:16,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:04:16,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:04:16,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:04:14" (1/3) ... [2023-11-21 21:04:16,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f6f12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:16, skipping insertion in model container [2023-11-21 21:04:16,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15" (2/3) ... [2023-11-21 21:04:16,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f6f12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:16, skipping insertion in model container [2023-11-21 21:04:16,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:16" (3/3) ... [2023-11-21 21:04:16,483 INFO L112 eAbstractionObserver]: Analyzing ICFG log_0_safe.c-amalgamation.i [2023-11-21 21:04:16,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:04:16,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:04:16,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:04:16,562 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;@725fc0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:04:16,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:04:16,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-21 21:04:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 21:04:16,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:04:16,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 21:04:16,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:04:16,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 21:04:16,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:04:16,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309574473] [2023-11-21 21:04:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:16,600 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 [2023-11-21 21:04:16,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:04:16,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:04:16,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:04:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:04:16,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:04:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:04:16,740 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 21:04:16,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:04:16,746 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:04:16,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:04:16,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:04:16,956 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:04:16,961 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:04:16,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:04:16 BoogieIcfgContainer [2023-11-21 21:04:16,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:04:16,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:04:16,977 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:04:16,978 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:04:16,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:16" (3/4) ... [2023-11-21 21:04:16,981 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:04:16,982 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:04:16,983 INFO L158 Benchmark]: Toolchain (without parser) took 2452.23ms. Allocated memory is still 125.8MB. Free memory was 99.4MB in the beginning and 75.7MB in the end (delta: 23.7MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-11-21 21:04:16,984 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 77.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:04:16,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1357.28ms. Allocated memory is still 125.8MB. Free memory was 99.4MB in the beginning and 66.7MB in the end (delta: 32.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-11-21 21:04:16,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.09ms. Allocated memory is still 125.8MB. Free memory was 66.7MB in the beginning and 63.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:04:16,986 INFO L158 Benchmark]: Boogie Preprocessor took 51.09ms. Allocated memory is still 125.8MB. Free memory was 63.8MB in the beginning and 102.2MB in the end (delta: -38.4MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-11-21 21:04:16,987 INFO L158 Benchmark]: RCFGBuilder took 463.79ms. Allocated memory is still 125.8MB. Free memory was 102.2MB in the beginning and 89.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:04:16,989 INFO L158 Benchmark]: TraceAbstraction took 500.27ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 76.4MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:04:16,992 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 125.8MB. Free memory was 76.4MB in the beginning and 75.7MB in the end (delta: 749.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:04:16,996 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 77.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1357.28ms. Allocated memory is still 125.8MB. Free memory was 99.4MB in the beginning and 66.7MB in the end (delta: 32.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.09ms. Allocated memory is still 125.8MB. Free memory was 66.7MB in the beginning and 63.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.09ms. Allocated memory is still 125.8MB. Free memory was 63.8MB in the beginning and 102.2MB in the end (delta: -38.4MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.79ms. Allocated memory is still 125.8MB. Free memory was 102.2MB in the beginning and 89.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 500.27ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 76.4MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 125.8MB. Free memory was 76.4MB in the beginning and 75.7MB in the end (delta: 749.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 850]: 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 logf at line 849. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isless(x, 0.0f))) [L849] float y = logf(x); [L850] COND TRUE !(__builtin_isnan (y)) [L850] reach_error() VAL [x=-2.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-21 21:04:17,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb21255-1954-4dfd-8507-109a06a120bf/bin/uautomizer-verify-bycVGegfSx/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: UNKNOWN: Overapproximated counterexample