./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:57:21,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:57:21,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:57:21,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:57:21,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:57:22,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:57:22,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:57:22,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:57:22,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:57:22,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:57:22,044 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:57:22,044 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:57:22,045 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:57:22,047 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:57:22,048 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:57:22,048 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:57:22,049 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:57:22,049 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:57:22,050 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:57:22,050 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:57:22,051 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:57:22,052 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:57:22,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:57:22,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:57:22,054 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:57:22,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:57:22,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:57:22,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:57:22,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:57:22,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:57:22,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:57:22,057 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:57:22,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:57:22,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:57:22,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:57:22,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:57:22,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:57:22,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:57:22,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:57:22,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:57:22,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:57:22,061 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:57:22,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:57:22,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:57:22,062 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:57:22,062 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:57:22,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:57:22,063 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab [2023-11-21 19:57:22,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:57:22,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:57:22,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:57:22,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:57:22,440 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:57:22,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2023-11-21 19:57:26,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:57:26,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:57:26,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2023-11-21 19:57:26,430 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data/eebd41688/2e5b5019f1494fbfad3e45d2348abe8b/FLAG08540e42e [2023-11-21 19:57:26,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data/eebd41688/2e5b5019f1494fbfad3e45d2348abe8b [2023-11-21 19:57:26,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:57:26,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:57:26,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:57:26,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:57:26,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:57:26,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:57:26" (1/1) ... [2023-11-21 19:57:26,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ece0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:26, skipping insertion in model container [2023-11-21 19:57:26,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:57:26" (1/1) ... [2023-11-21 19:57:26,720 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:57:26,956 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:57:27,518 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:57:27,523 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_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i[63016,63029] [2023-11-21 19:57:27,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:57:27,540 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:57:27,558 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:57:27,582 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:57:27,584 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_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i[63016,63029] [2023-11-21 19:57:27,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:57:27,852 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:57:27,852 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:57:27,861 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:57:27,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27 WrapperNode [2023-11-21 19:57:27,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:57:27,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:57:27,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:57:27,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:57:27,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,927 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-21 19:57:27,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:57:27,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:57:27,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:57:27,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:57:27,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:57:27,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:57:27,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:57:27,972 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:57:27,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (1/1) ... [2023-11-21 19:57:27,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:57:27,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:57:28,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:57:28,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:57:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:57:28,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:57:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:57:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 19:57:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:57:28,245 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:57:28,247 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:57:28,397 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:57:28,496 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:57:28,500 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:57:28,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:57:28 BoogieIcfgContainer [2023-11-21 19:57:28,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:57:28,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:57:28,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:57:28,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:57:28,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:57:26" (1/3) ... [2023-11-21 19:57:28,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54daf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:57:28, skipping insertion in model container [2023-11-21 19:57:28,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:27" (2/3) ... [2023-11-21 19:57:28,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54daf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:57:28, skipping insertion in model container [2023-11-21 19:57:28,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:57:28" (3/3) ... [2023-11-21 19:57:28,524 INFO L112 eAbstractionObserver]: Analyzing ICFG exp_1_safe.c-amalgamation.i [2023-11-21 19:57:28,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:57:28,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:57:28,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:57:28,643 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=FINITE_AUTOMATA, 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;@3f1b06b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:57:28,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:57:28,649 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 19:57:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 19:57:28,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:57:28,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 19:57:28,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:57:28,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:57:28,670 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 19:57:28,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:57:28,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391234003] [2023-11-21 19:57:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:57:28,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:57:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:57:28,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:57:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:57:28,873 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 19:57:28,877 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:57:28,879 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:57:28,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:57:28,887 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:57:28,893 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:57:28,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:57:28 BoogieIcfgContainer [2023-11-21 19:57:28,919 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:57:28,921 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:57:28,921 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:57:28,922 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:57:28,922 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:57:28" (3/4) ... [2023-11-21 19:57:28,928 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:57:28,930 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:57:28,932 INFO L158 Benchmark]: Toolchain (without parser) took 2299.36ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 84.1MB in the beginning and 94.3MB in the end (delta: -10.2MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2023-11-21 19:57:28,932 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:57:28,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1228.11ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 83.6MB in the beginning and 122.8MB in the end (delta: -39.1MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2023-11-21 19:57:28,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.45ms. Allocated memory is still 178.3MB. Free memory was 122.8MB in the beginning and 119.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:57:28,942 INFO L158 Benchmark]: Boogie Preprocessor took 41.65ms. Allocated memory is still 178.3MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:57:28,943 INFO L158 Benchmark]: RCFGBuilder took 532.66ms. Allocated memory is still 178.3MB. Free memory was 118.6MB in the beginning and 108.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 19:57:28,945 INFO L158 Benchmark]: TraceAbstraction took 409.31ms. Allocated memory is still 178.3MB. Free memory was 107.2MB in the beginning and 94.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:57:28,946 INFO L158 Benchmark]: Witness Printer took 8.88ms. Allocated memory is still 178.3MB. Free memory was 94.6MB in the beginning and 94.3MB in the end (delta: 261.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:57:28,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1228.11ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 83.6MB in the beginning and 122.8MB in the end (delta: -39.1MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.45ms. Allocated memory is still 178.3MB. Free memory was 122.8MB in the beginning and 119.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.65ms. Allocated memory is still 178.3MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.66ms. Allocated memory is still 178.3MB. Free memory was 118.6MB in the beginning and 108.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 409.31ms. Allocated memory is still 178.3MB. Free memory was 107.2MB in the beginning and 94.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 8.88ms. Allocated memory is still 178.3MB. Free memory was 94.6MB in the beginning and 94.3MB in the end (delta: 261.8kB). 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: 851]: 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 851, overapproximation of someBinaryArithmeticFLOAToperation at line 850. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(!__builtin_isnan (x))) [L849] float y = expf(x); [L850] float z = x + 1.0f; [L851] COND TRUE !(__builtin_isgreaterequal(y, z)) [L851] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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 19:57:29,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:57:31,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:57:32,127 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 19:57:32,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:57:32,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:57:32,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:57:32,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:57:32,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:57:32,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:57:32,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:57:32,204 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:57:32,205 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:57:32,206 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:57:32,208 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:57:32,208 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:57:32,209 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:57:32,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:57:32,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:57:32,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:57:32,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:57:32,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:57:32,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:57:32,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:57:32,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:57:32,215 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:57:32,216 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:57:32,216 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:57:32,217 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:57:32,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:57:32,218 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:57:32,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:57:32,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:57:32,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:57:32,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:57:32,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:57:32,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:57:32,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:57:32,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:57:32,222 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:57:32,223 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:57:32,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:57:32,224 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:57:32,224 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:57:32,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:57:32,225 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab [2023-11-21 19:57:32,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:57:32,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:57:32,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:57:32,786 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:57:32,787 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:57:32,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2023-11-21 19:57:36,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:57:36,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:57:36,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2023-11-21 19:57:36,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data/c2ea1699d/f27a0268097a42258f8b3c15bb03399e/FLAG705e2a6fa [2023-11-21 19:57:36,928 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/data/c2ea1699d/f27a0268097a42258f8b3c15bb03399e [2023-11-21 19:57:36,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:57:36,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:57:36,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:57:36,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:57:36,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:57:36,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:57:36" (1/1) ... [2023-11-21 19:57:36,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775bb8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:36, skipping insertion in model container [2023-11-21 19:57:36,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:57:36" (1/1) ... [2023-11-21 19:57:37,001 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:57:37,267 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:57:37,725 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:57:37,728 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_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i[63016,63029] [2023-11-21 19:57:37,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:57:37,746 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:57:37,768 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:57:37,843 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:57:37,844 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_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i[63016,63029] [2023-11-21 19:57:37,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:57:38,006 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:57:38,006 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:57:38,015 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:57:38,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38 WrapperNode [2023-11-21 19:57:38,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:57:38,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:57:38,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:57:38,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:57:38,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,080 INFO L138 Inliner]: procedures = 560, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-21 19:57:38,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:57:38,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:57:38,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:57:38,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:57:38,092 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:57:38,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:57:38,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:57:38,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:57:38,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (1/1) ... [2023-11-21 19:57:38,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:57:38,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:57:38,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:57:38,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:57:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:57:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:57:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:57:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:57:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 19:57:38,380 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:57:38,382 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:57:38,606 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:57:38,717 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:57:38,718 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:57:38,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:57:38 BoogieIcfgContainer [2023-11-21 19:57:38,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:57:38,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:57:38,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:57:38,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:57:38,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:57:36" (1/3) ... [2023-11-21 19:57:38,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ccec37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:57:38, skipping insertion in model container [2023-11-21 19:57:38,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:57:38" (2/3) ... [2023-11-21 19:57:38,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ccec37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:57:38, skipping insertion in model container [2023-11-21 19:57:38,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:57:38" (3/3) ... [2023-11-21 19:57:38,736 INFO L112 eAbstractionObserver]: Analyzing ICFG exp_1_safe.c-amalgamation.i [2023-11-21 19:57:38,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:57:38,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:57:38,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:57:38,849 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=FINITE_AUTOMATA, 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;@7aa1b276, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:57:38,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:57:38,854 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 19:57:38,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 19:57:38,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:57:38,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 19:57:38,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:57:38,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:57:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 19:57:38,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:57:38,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874650346] [2023-11-21 19:57:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:57:38,885 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 19:57:38,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:57:38,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/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 19:57:38,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/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 19:57:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:57:39,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:57:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:57:39,086 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-21 19:57:39,088 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:57:39,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:57:39,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 19:57:39,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/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 19:57:39,296 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:57:39,301 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:57:39,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:57:39 BoogieIcfgContainer [2023-11-21 19:57:39,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:57:39,317 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:57:39,317 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:57:39,318 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:57:39,318 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:57:38" (3/4) ... [2023-11-21 19:57:39,320 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:57:39,322 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:57:39,323 INFO L158 Benchmark]: Toolchain (without parser) took 2390.47ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 57.4MB in the beginning and 85.7MB in the end (delta: -28.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-21 19:57:39,324 INFO L158 Benchmark]: CDTParser took 2.92ms. Allocated memory is still 83.9MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:57:39,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1082.12ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 57.2MB in the beginning and 81.3MB in the end (delta: -24.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 19:57:39,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.20ms. Allocated memory is still 121.6MB. Free memory was 80.7MB in the beginning and 78.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:57:39,326 INFO L158 Benchmark]: Boogie Preprocessor took 31.41ms. Allocated memory is still 121.6MB. Free memory was 78.1MB in the beginning and 76.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:57:39,327 INFO L158 Benchmark]: RCFGBuilder took 606.80ms. Allocated memory is still 121.6MB. Free memory was 76.5MB in the beginning and 63.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:57:39,328 INFO L158 Benchmark]: TraceAbstraction took 592.49ms. Allocated memory is still 121.6MB. Free memory was 63.4MB in the beginning and 85.7MB in the end (delta: -22.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:57:39,328 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 121.6MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:57:39,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.92ms. Allocated memory is still 83.9MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1082.12ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 57.2MB in the beginning and 81.3MB in the end (delta: -24.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.20ms. Allocated memory is still 121.6MB. Free memory was 80.7MB in the beginning and 78.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.41ms. Allocated memory is still 121.6MB. Free memory was 78.1MB in the beginning and 76.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.80ms. Allocated memory is still 121.6MB. Free memory was 76.5MB in the beginning and 63.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 592.49ms. Allocated memory is still 121.6MB. Free memory was 63.4MB in the beginning and 85.7MB in the end (delta: -22.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 121.6MB. Free memory is still 85.7MB. 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: 851]: 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 expf at line 849. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(!__builtin_isnan (x))) [L849] float y = expf(x); [L850] float z = x + 1.0f; VAL [x=0.0, z=1.0] [L851] COND TRUE !(__builtin_isgreaterequal(y, z)) VAL [x=0.0, y=0.0, z=1.0] [L851] reach_error() VAL [x=0.0, y=0.0, z=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 0.1s 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 19:57:39,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfc60b3a-49fb-4c85-9ff1-ca2de102fa65/bin/utaipan-verify-QoSU8krkJ5/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