./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX --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 5f2f275be1bc64878f3fa8c0cc98d410f75766d8acda1f5a74b32c4e3f3632e7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:47:04,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:47:04,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:47:04,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:47:04,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:47:04,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:47:04,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:47:04,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:47:04,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:47:04,453 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:47:04,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:47:04,454 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:47:04,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:47:04,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:47:04,456 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:47:04,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:47:04,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:47:04,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:47:04,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:47:04,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:47:04,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:47:04,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:47:04,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:47:04,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:47:04,466 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:47:04,466 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:47:04,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:47:04,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:47:04,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:47:04,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:47:04,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:47:04,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:47:04,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:47:04,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:47:04,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:47:04,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:47:04,470 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:47:04,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:47:04,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:47:04,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:47:04,471 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:47:04,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:47:04,473 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_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f2f275be1bc64878f3fa8c0cc98d410f75766d8acda1f5a74b32c4e3f3632e7 [2024-11-08 17:47:04,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:47:04,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:47:04,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:47:04,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:47:04,782 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:47:04,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 17:47:06,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:47:07,177 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:47:07,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i [2024-11-08 17:47:07,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data/237de7975/300406be8efd4372ba210b0d1639a50e/FLAG327691d12 [2024-11-08 17:47:07,234 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data/237de7975/300406be8efd4372ba210b0d1639a50e [2024-11-08 17:47:07,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:47:07,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:47:07,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:47:07,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:47:07,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:47:07,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:47:07" (1/1) ... [2024-11-08 17:47:07,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20134efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:07, skipping insertion in model container [2024-11-08 17:47:07,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:47:07" (1/1) ... [2024-11-08 17:47:07,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:47:08,032 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-08 17:47:08,034 WARN L250 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_16b957a3-f722-48df-b2d9-bb44c1babffc/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-08 17:47:08,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:47:08,048 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:47:08,095 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-08 17:47:08,096 WARN L250 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_16b957a3-f722-48df-b2d9-bb44c1babffc/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-08 17:47:08,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:47:08,293 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:47:08,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08 WrapperNode [2024-11-08 17:47:08,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:47:08,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:47:08,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:47:08,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:47:08,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,348 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-08 17:47:08,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:47:08,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:47:08,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:47:08,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:47:08,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,375 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-08 17:47:08,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:47:08,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:47:08,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:47:08,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:47:08,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (1/1) ... [2024-11-08 17:47:08,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:47:08,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:47:08,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:47:08,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:47:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:47:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:47:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:47:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:47:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:47:08,572 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:47:08,575 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:47:08,634 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-08 17:47:08,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:47:08,644 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:47:08,644 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:47:08,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:47:08 BoogieIcfgContainer [2024-11-08 17:47:08,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:47:08,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:47:08,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:47:08,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:47:08,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:47:07" (1/3) ... [2024-11-08 17:47:08,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347c67aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:47:08, skipping insertion in model container [2024-11-08 17:47:08,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:08" (2/3) ... [2024-11-08 17:47:08,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347c67aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:47:08, skipping insertion in model container [2024-11-08 17:47:08,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:47:08" (3/3) ... [2024-11-08 17:47:08,654 INFO L112 eAbstractionObserver]: Analyzing ICFG exp_4_unsafe.c-amalgamation.i [2024-11-08 17:47:08,672 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:47:08,672 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:47:08,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:47:08,745 INFO L333 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, 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;@76087038, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:47:08,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:47:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-08 17:47:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 17:47:08,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:47:08,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:47:08,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:47:08,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:47:08,766 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-08 17:47:08,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:47:08,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635094279] [2024-11-08 17:47:08,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:47:08,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:47:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:47:08,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:47:08,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:47:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635094279] [2024-11-08 17:47:08,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635094279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:47:08,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:47:08,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:47:08,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818833424] [2024-11-08 17:47:08,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:47:08,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:47:08,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:47:09,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:47:09,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:47:09,004 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-08 17:47:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:47:09,016 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-08 17:47:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:47:09,018 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2024-11-08 17:47:09,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:47:09,026 INFO L225 Difference]: With dead ends: 19 [2024-11-08 17:47:09,026 INFO L226 Difference]: Without dead ends: 7 [2024-11-08 17:47:09,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:47:09,032 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:47:09,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:47:09,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-08 17:47:09,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-08 17:47:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2024-11-08 17:47:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-08 17:47:09,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-08 17:47:09,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:47:09,058 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-08 17:47:09,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-08 17:47:09,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-08 17:47:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 17:47:09,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:47:09,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:47:09,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:47:09,060 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:47:09,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:47:09,061 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-08 17:47:09,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:47:09,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240684382] [2024-11-08 17:47:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:47:09,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:47:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:47:09,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:47:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:47:09,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:47:09,106 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:47:09,108 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:47:09,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:47:09,113 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:47:09,125 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:47:09,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:47:09 BoogieIcfgContainer [2024-11-08 17:47:09,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:47:09,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:47:09,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:47:09,130 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:47:09,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:47:08" (3/4) ... [2024-11-08 17:47:09,133 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:47:09,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:47:09,136 INFO L158 Benchmark]: Toolchain (without parser) took 1894.51ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 67.5MB in the end (delta: 35.8MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-11-08 17:47:09,136 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:47:09,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1050.66ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 105.2MB in the end (delta: -1.9MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2024-11-08 17:47:09,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.79ms. Allocated memory is still 146.8MB. Free memory was 105.2MB in the beginning and 102.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:47:09,138 INFO L158 Benchmark]: Boogie Preprocessor took 42.86ms. Allocated memory is still 146.8MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:47:09,138 INFO L158 Benchmark]: RCFGBuilder took 251.58ms. Allocated memory is still 146.8MB. Free memory was 101.0MB in the beginning and 91.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 17:47:09,139 INFO L158 Benchmark]: TraceAbstraction took 482.25ms. Allocated memory is still 146.8MB. Free memory was 90.5MB in the beginning and 68.1MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 17:47:09,139 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 146.8MB. Free memory was 68.1MB in the beginning and 67.5MB in the end (delta: 653.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:47:09,142 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1050.66ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 105.2MB in the end (delta: -1.9MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.79ms. Allocated memory is still 146.8MB. Free memory was 105.2MB in the beginning and 102.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.86ms. Allocated memory is still 146.8MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 251.58ms. Allocated memory is still 146.8MB. Free memory was 101.0MB in the beginning and 91.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 482.25ms. Allocated memory is still 146.8MB. Free memory was 90.5MB in the beginning and 68.1MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 146.8MB. Free memory was 68.1MB in the beginning and 67.5MB in the end (delta: 653.3kB). 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: 853]: 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 853, overapproximation of someBinaryArithmeticFLOAToperation at line 849. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isgreaterequal(x1, -88.0f) && __builtin_islessequal(x1, 88.0f))) [L849] float x2 = x1 + 1e-2f; [L850] float y1 = expf(x1); [L851] float y2 = expf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] COND TRUE !(__builtin_isgreaterequal(derivative, y2)) [L853] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 17:47:09,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX --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 5f2f275be1bc64878f3fa8c0cc98d410f75766d8acda1f5a74b32c4e3f3632e7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:47:11,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:47:11,714 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 17:47:11,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:47:11,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:47:11,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:47:11,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:47:11,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:47:11,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:47:11,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:47:11,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:47:11,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:47:11,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:47:11,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:47:11,753 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:47:11,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:47:11,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:47:11,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:47:11,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:47:11,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:47:11,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:47:11,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:47:11,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:47:11,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:47:11,760 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:47:11,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:47:11,760 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:47:11,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:47:11,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:47:11,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:47:11,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:47:11,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:47:11,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:47:11,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:47:11,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:47:11,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:47:11,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:47:11,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:47:11,766 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:47:11,766 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:47:11,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:47:11,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:47:11,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:47:11,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:47:11,779 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_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f2f275be1bc64878f3fa8c0cc98d410f75766d8acda1f5a74b32c4e3f3632e7 [2024-11-08 17:47:12,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:47:12,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:47:12,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:47:12,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:47:12,191 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:47:12,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 17:47:14,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:47:14,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:47:14,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i [2024-11-08 17:47:14,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data/adc6ad0f1/9f6aa13e348945129158fe43ed85debc/FLAG9895a89c7 [2024-11-08 17:47:14,799 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/data/adc6ad0f1/9f6aa13e348945129158fe43ed85debc [2024-11-08 17:47:14,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:47:14,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:47:14,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:47:14,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:47:14,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:47:14,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:47:14" (1/1) ... [2024-11-08 17:47:14,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4efaed29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:14, skipping insertion in model container [2024-11-08 17:47:14,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:47:14" (1/1) ... [2024-11-08 17:47:14,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:47:15,673 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-08 17:47:15,674 WARN L250 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_16b957a3-f722-48df-b2d9-bb44c1babffc/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-08 17:47:15,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:47:15,692 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:47:15,745 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-08 17:47:15,746 WARN L250 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_16b957a3-f722-48df-b2d9-bb44c1babffc/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-08 17:47:15,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:47:15,939 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:47:15,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15 WrapperNode [2024-11-08 17:47:15,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:47:15,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:47:15,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:47:15,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:47:15,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:15,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,008 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-11-08 17:47:16,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:47:16,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:47:16,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:47:16,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:47:16,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,036 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-08 17:47:16,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:47:16,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:47:16,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:47:16,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:47:16,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (1/1) ... [2024-11-08 17:47:16,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:47:16,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:47:16,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:47:16,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:47:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:47:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 17:47:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:47:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:47:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:47:16,246 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:47:16,248 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:47:16,664 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-08 17:47:16,664 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:47:16,677 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:47:16,677 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:47:16,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:47:16 BoogieIcfgContainer [2024-11-08 17:47:16,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:47:16,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:47:16,682 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:47:16,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:47:16,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:47:14" (1/3) ... [2024-11-08 17:47:16,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4312d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:47:16, skipping insertion in model container [2024-11-08 17:47:16,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:47:15" (2/3) ... [2024-11-08 17:47:16,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4312d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:47:16, skipping insertion in model container [2024-11-08 17:47:16,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:47:16" (3/3) ... [2024-11-08 17:47:16,692 INFO L112 eAbstractionObserver]: Analyzing ICFG exp_4_unsafe.c-amalgamation.i [2024-11-08 17:47:16,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:47:16,714 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:47:16,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:47:16,796 INFO L333 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, 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;@40f476f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:47:16,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:47:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-08 17:47:16,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 17:47:16,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:47:16,810 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:47:16,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:47:16,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:47:16,818 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-08 17:47:16,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:47:16,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519901398] [2024-11-08 17:47:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:47:16,833 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 [2024-11-08 17:47:16,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:47:16,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 17:47:16,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:47:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:47:17,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 17:47:17,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:47:17,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:47:17,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:47:17,156 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:47:17,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519901398] [2024-11-08 17:47:17,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519901398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:47:17,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:47:17,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:47:17,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329825740] [2024-11-08 17:47:17,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:47:17,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:47:17,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:47:17,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:47:17,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:47:17,203 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-08 17:47:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:47:17,216 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-08 17:47:17,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:47:17,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2024-11-08 17:47:17,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:47:17,232 INFO L225 Difference]: With dead ends: 19 [2024-11-08 17:47:17,232 INFO L226 Difference]: Without dead ends: 7 [2024-11-08 17:47:17,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:47:17,242 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:47:17,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:47:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-08 17:47:17,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-08 17:47:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2024-11-08 17:47:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-08 17:47:17,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-08 17:47:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:47:17,284 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-08 17:47:17,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-08 17:47:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-08 17:47:17,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 17:47:17,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:47:17,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:47:17,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:47:17,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:47:17,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:47:17,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:47:17,488 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-08 17:47:17,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:47:17,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100078489] [2024-11-08 17:47:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:47:17,489 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 [2024-11-08 17:47:17,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:47:17,491 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 17:47:17,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 17:47:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:47:17,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:47:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:47:18,096 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 17:47:18,096 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:47:18,098 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:47:18,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-08 17:47:18,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:47:18,313 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:47:18,341 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:47:18,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:47:18 BoogieIcfgContainer [2024-11-08 17:47:18,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:47:18,348 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:47:18,348 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:47:18,348 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:47:18,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:47:16" (3/4) ... [2024-11-08 17:47:18,351 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:47:18,356 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:47:18,361 INFO L158 Benchmark]: Toolchain (without parser) took 3550.80ms. Allocated memory was 65.0MB in the beginning and 123.7MB in the end (delta: 58.7MB). Free memory was 32.1MB in the beginning and 94.2MB in the end (delta: -62.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:47:18,362 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:47:18,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1131.94ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 32.0MB in the beginning and 51.3MB in the end (delta: -19.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-11-08 17:47:18,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.18ms. Allocated memory is still 90.2MB. Free memory was 51.3MB in the beginning and 48.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:47:18,363 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 90.2MB. Free memory was 48.4MB in the beginning and 46.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:47:18,364 INFO L158 Benchmark]: RCFGBuilder took 627.62ms. Allocated memory is still 90.2MB. Free memory was 46.3MB in the beginning and 60.2MB in the end (delta: -13.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-08 17:47:18,364 INFO L158 Benchmark]: TraceAbstraction took 1666.37ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 59.3MB in the beginning and 94.2MB in the end (delta: -34.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-11-08 17:47:18,365 INFO L158 Benchmark]: Witness Printer took 8.81ms. Allocated memory is still 123.7MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:47:18,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1131.94ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 32.0MB in the beginning and 51.3MB in the end (delta: -19.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.18ms. Allocated memory is still 90.2MB. Free memory was 51.3MB in the beginning and 48.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 90.2MB. Free memory was 48.4MB in the beginning and 46.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.62ms. Allocated memory is still 90.2MB. Free memory was 46.3MB in the beginning and 60.2MB in the end (delta: -13.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1666.37ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 59.3MB in the beginning and 94.2MB in the end (delta: -34.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Witness Printer took 8.81ms. Allocated memory is still 123.7MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 853]: 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 850. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(__builtin_isgreaterequal(x1, -88.0f) && __builtin_islessequal(x1, 88.0f))) VAL [x1=0.0] [L849] float x2 = x1 + 1e-2f; [L850] float y1 = expf(x1); [L851] float y2 = expf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; VAL [derivative=-204.6875, y2=-2.046875] [L853] COND TRUE !(__builtin_isgreaterequal(derivative, y2)) [L853] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 17:47:18,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16b957a3-f722-48df-b2d9-bb44c1babffc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample