./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC --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 0.3.0-dev-6497de0 [2024-11-24 00:13:19,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:13:20,073 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:13:20,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:13:20,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:13:20,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:13:20,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:13:20,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:13:20,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:13:20,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:13:20,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:13:20,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:13:20,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:13:20,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:13:20,124 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:13:20,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:13:20,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:13:20,126 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:13:20,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:13:20,126 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:13:20,126 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:13:20,126 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:13:20,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:13:20,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:13:20,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:13:20,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:13:20,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:13:20,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:13:20,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:13:20,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:13:20,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:13:20,129 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:13:20,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:13:20,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:13:20,129 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-24 00:13:20,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:13:20,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:13:20,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:13:20,494 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:13:20,494 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:13:20,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i [2024-11-24 00:13:23,712 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/f0916f065/ebfa5ef9fb634319b04b0bfb7b077668/FLAG490bcf87f [2024-11-24 00:13:24,160 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:13:24,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i [2024-11-24 00:13:24,190 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/f0916f065/ebfa5ef9fb634319b04b0bfb7b077668/FLAG490bcf87f [2024-11-24 00:13:24,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/f0916f065/ebfa5ef9fb634319b04b0bfb7b077668 [2024-11-24 00:13:24,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:13:24,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:13:24,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:13:24,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:13:24,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:13:24,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:13:24" (1/1) ... [2024-11-24 00:13:24,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c112e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:24, skipping insertion in model container [2024-11-24 00:13:24,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:13:24" (1/1) ... [2024-11-24 00:13:24,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:13:24,917 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-24 00:13:24,922 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_916ab5bb-4953-41bf-83da-aa31ba433ace/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-24 00:13:24,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:13:24,936 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:13:24,997 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-24 00:13:24,997 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_916ab5bb-4953-41bf-83da-aa31ba433ace/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-24 00:13:24,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:13:25,199 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:13:25,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25 WrapperNode [2024-11-24 00:13:25,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:13:25,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:13:25,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:13:25,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:13:25,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,269 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-24 00:13:25,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:13:25,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:13:25,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:13:25,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:13:25,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,291 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]. [2024-11-24 00:13:25,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,295 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:13:25,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:13:25,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:13:25,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:13:25,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (1/1) ... [2024-11-24 00:13:25,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:13:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:25,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:13:25,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:13:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:13:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:13:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:13:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:13:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:13:25,494 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:13:25,496 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:13:25,556 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-24 00:13:25,556 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:13:25,565 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:13:25,565 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:13:25,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:13:25 BoogieIcfgContainer [2024-11-24 00:13:25,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:13:25,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:13:25,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:13:25,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:13:25,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:13:24" (1/3) ... [2024-11-24 00:13:25,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3578c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:13:25, skipping insertion in model container [2024-11-24 00:13:25,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:25" (2/3) ... [2024-11-24 00:13:25,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3578c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:13:25, skipping insertion in model container [2024-11-24 00:13:25,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:13:25" (3/3) ... [2024-11-24 00:13:25,576 INFO L128 eAbstractionObserver]: Analyzing ICFG exp_4_unsafe.c-amalgamation.i [2024-11-24 00:13:25,594 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:13:25,595 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG exp_4_unsafe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:13:25,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:13:25,679 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;@7e2d85c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:13:25,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:13:25,684 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) [2024-11-24 00:13:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:13:25,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:25,691 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:13:25,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:25,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-24 00:13:25,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:25,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336511352] [2024-11-24 00:13:25,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:25,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:13:25,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:25,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336511352] [2024-11-24 00:13:25,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336511352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:13:25,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:13:25,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:13:25,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465550949] [2024-11-24 00:13:25,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:25,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:13:25,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:25,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:13:25,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:13:25,918 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) [2024-11-24 00:13:25,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:25,928 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-24 00:13:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:13:25,931 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 [2024-11-24 00:13:25,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:25,938 INFO L225 Difference]: With dead ends: 19 [2024-11-24 00:13:25,938 INFO L226 Difference]: Without dead ends: 7 [2024-11-24 00:13:25,942 INFO L434 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 [2024-11-24 00:13:25,947 INFO L435 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 [2024-11-24 00:13:25,948 INFO L436 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] [2024-11-24 00:13:25,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-24 00:13:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-24 00:13:25,968 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) [2024-11-24 00:13:25,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-24 00:13:25,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-24 00:13:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:25,973 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-24 00:13:25,973 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) [2024-11-24 00:13:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-24 00:13:25,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:13:25,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:25,974 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:13:25,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:13:25,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:25,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:25,975 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-24 00:13:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:25,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51841386] [2024-11-24 00:13:25,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:25,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:13:25,993 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:13:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:13:26,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:13:26,016 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:13:26,018 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:13:26,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:13:26,024 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:13:26,037 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:13:26,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:13:26 BoogieIcfgContainer [2024-11-24 00:13:26,041 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:13:26,042 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:13:26,042 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:13:26,042 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:13:26,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:13:25" (3/4) ... [2024-11-24 00:13:26,046 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:13:26,047 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:13:26,048 INFO L158 Benchmark]: Toolchain (without parser) took 1833.87ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 52.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-11-24 00:13:26,049 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:13:26,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 985.89ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 84.3MB in the end (delta: 7.4MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2024-11-24 00:13:26,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.05ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 82.0MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:13:26,050 INFO L158 Benchmark]: Boogie Preprocessor took 31.20ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:13:26,050 INFO L158 Benchmark]: RCFGBuilder took 264.88ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 71.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:13:26,051 INFO L158 Benchmark]: TraceAbstraction took 473.01ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 52.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:13:26,051 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 52.0MB in the end (delta: 584.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:13:26,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 985.89ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 84.3MB in the end (delta: 7.4MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.05ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 82.0MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.20ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 264.88ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 71.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 473.01ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 52.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 52.0MB in the end (delta: 584.8kB). 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: 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 someBinaryFLOATComparisonOperation at line 848, 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:13:26,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC --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 0.3.0-dev-6497de0 [2024-11-24 00:13:28,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:13:29,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:13:29,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:13:29,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:13:29,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:13:29,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:13:29,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:13:29,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:13:29,077 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:13:29,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:13:29,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:13:29,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:13:29,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:13:29,078 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:13:29,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:13:29,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:13:29,078 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:13:29,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:13:29,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:13:29,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:13:29,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:13:29,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:13:29,079 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:13:29,079 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:13:29,079 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:13:29,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:13:29,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:13:29,080 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:13:29,080 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:13:29,080 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:13:29,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:13:29,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:13:29,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:13:29,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:13:29,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:13:29,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:13:29,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:13:29,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:13:29,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:13:29,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:13:29,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:13:29,082 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:13:29,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:13:29,082 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:13:29,082 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:13:29,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:13:29,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:13:29,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:13:29,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:13:29,083 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-24 00:13:29,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:13:29,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:13:29,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:13:29,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:13:29,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:13:29,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i [2024-11-24 00:13:32,392 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/62108c843/75faa63bcd25484e9c5803dac2b96696/FLAG58987a0af [2024-11-24 00:13:32,702 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:13:32,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i [2024-11-24 00:13:32,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/62108c843/75faa63bcd25484e9c5803dac2b96696/FLAG58987a0af [2024-11-24 00:13:32,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/data/62108c843/75faa63bcd25484e9c5803dac2b96696 [2024-11-24 00:13:32,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:13:32,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:13:32,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:13:32,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:13:32,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:13:32,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:13:32" (1/1) ... [2024-11-24 00:13:32,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac54717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:32, skipping insertion in model container [2024-11-24 00:13:32,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:13:32" (1/1) ... [2024-11-24 00:13:33,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:13:33,674 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-24 00:13:33,679 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_916ab5bb-4953-41bf-83da-aa31ba433ace/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-24 00:13:33,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:13:33,693 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:13:33,777 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-24 00:13:33,778 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_916ab5bb-4953-41bf-83da-aa31ba433ace/sv-benchmarks/c/neural-networks/exp_4_unsafe.c-amalgamation.i[63145,63158] [2024-11-24 00:13:33,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:13:33,944 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:13:33,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33 WrapperNode [2024-11-24 00:13:33,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:13:33,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:13:33,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:13:33,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:13:33,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:33,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:33,992 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-11-24 00:13:33,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:13:33,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:13:33,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:13:33,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:13:34,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,016 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]. [2024-11-24 00:13:34,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,022 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:13:34,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:13:34,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:13:34,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:13:34,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (1/1) ... [2024-11-24 00:13:34,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:13:34,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:34,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:13:34,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:13:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:13:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:13:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:13:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:13:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:13:34,272 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:13:34,275 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:13:36,095 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-24 00:13:36,095 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:13:36,106 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:13:36,106 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:13:36,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:13:36 BoogieIcfgContainer [2024-11-24 00:13:36,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:13:36,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:13:36,109 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:13:36,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:13:36,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:13:32" (1/3) ... [2024-11-24 00:13:36,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c25f7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:13:36, skipping insertion in model container [2024-11-24 00:13:36,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:13:33" (2/3) ... [2024-11-24 00:13:36,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c25f7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:13:36, skipping insertion in model container [2024-11-24 00:13:36,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:13:36" (3/3) ... [2024-11-24 00:13:36,117 INFO L128 eAbstractionObserver]: Analyzing ICFG exp_4_unsafe.c-amalgamation.i [2024-11-24 00:13:36,133 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:13:36,134 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG exp_4_unsafe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 00:13:36,182 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:13:36,199 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;@6018201b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:13:36,200 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:13:36,205 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) [2024-11-24 00:13:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:13:36,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:36,212 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:13:36,212 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:36,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:36,222 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-24 00:13:36,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:36,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921369229] [2024-11-24 00:13:36,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:36,237 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 [2024-11-24 00:13:36,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:36,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 00:13:36,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:13:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:36,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:13:36,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:13:36,621 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:13:36,622 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:36,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921369229] [2024-11-24 00:13:36,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921369229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:13:36,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:13:36,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:13:36,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192557773] [2024-11-24 00:13:36,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:36,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:13:36,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:13:36,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:13:36,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:13:36,647 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) [2024-11-24 00:13:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:36,657 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-24 00:13:36,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:13:36,659 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 [2024-11-24 00:13:36,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:36,665 INFO L225 Difference]: With dead ends: 19 [2024-11-24 00:13:36,665 INFO L226 Difference]: Without dead ends: 7 [2024-11-24 00:13:36,667 INFO L434 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 [2024-11-24 00:13:36,670 INFO L435 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 [2024-11-24 00:13:36,671 INFO L436 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] [2024-11-24 00:13:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-24 00:13:36,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-24 00:13:36,693 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) [2024-11-24 00:13:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-24 00:13:36,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-24 00:13:36,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:36,698 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-24 00:13:36,699 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) [2024-11-24 00:13:36,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-24 00:13:36,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:13:36,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:36,699 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:13:36,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 00:13:36,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:13:36,900 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:36,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:36,901 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-24 00:13:36,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:36,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156275995] [2024-11-24 00:13:36,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:36,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:36,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:36,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 00:13:36,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:13:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:13:37,167 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:13:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:13:37,439 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-24 00:13:37,439 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:13:37,441 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:13:37,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:13:37,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:13:37,650 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:13:37,667 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:13:37,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:13:37 BoogieIcfgContainer [2024-11-24 00:13:37,671 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:13:37,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:13:37,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:13:37,672 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:13:37,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:13:36" (3/4) ... [2024-11-24 00:13:37,675 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:13:37,676 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:13:37,676 INFO L158 Benchmark]: Toolchain (without parser) took 4706.33ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 50.3MB in the end (delta: 7.8MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-24 00:13:37,677 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 83.9MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:13:37,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 973.58ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 36.4MB in the end (delta: 21.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-11-24 00:13:37,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.03ms. Allocated memory is still 83.9MB. Free memory was 36.4MB in the beginning and 33.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:13:37,678 INFO L158 Benchmark]: Boogie Preprocessor took 60.99ms. Allocated memory is still 83.9MB. Free memory was 33.6MB in the beginning and 55.5MB in the end (delta: -21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:13:37,678 INFO L158 Benchmark]: RCFGBuilder took 2051.93ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 46.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:13:37,679 INFO L158 Benchmark]: TraceAbstraction took 1561.89ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 50.3MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:13:37,679 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 3.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:13:37,681 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 83.9MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 973.58ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 36.4MB in the end (delta: 21.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.03ms. Allocated memory is still 83.9MB. Free memory was 36.4MB in the beginning and 33.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.99ms. Allocated memory is still 83.9MB. Free memory was 33.6MB in the beginning and 55.5MB in the end (delta: -21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 2051.93ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 46.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1561.89ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 50.3MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 3.8kB). 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: 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: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:13:37,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_916ab5bb-4953-41bf-83da-aa31ba433ace/bin/uautomizer-verify-LYvppIcaGC/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample