./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/log_3_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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:15:07,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:15:07,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:15:07,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:15:07,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:15:08,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:15:08,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:15:08,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:15:08,003 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:15:08,003 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:15:08,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:15:08,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:15:08,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:15:08,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:15:08,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:15:08,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:15:08,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:15:08,006 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:15:08,007 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:15:08,008 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:15:08,008 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:15:08,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:15:08,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:15:08,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:15:08,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:08,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:15:08,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:15:08,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:15:08,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:15:08,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:08,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:15:08,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:15:08,011 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:15:08,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:15:08,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:15:08,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:15:08,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:15:08,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:15:08,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:15:08,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:15:08,012 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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 -> 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 [2024-11-23 23:15:08,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:15:08,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:15:08,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:15:08,469 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:15:08,469 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:15:08,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i [2024-11-23 23:15:11,657 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/6b5915c5a/a95dec221bec458287833cd80040b27c/FLAG75c15732a [2024-11-23 23:15:12,058 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:15:12,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i [2024-11-23 23:15:12,092 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/6b5915c5a/a95dec221bec458287833cd80040b27c/FLAG75c15732a [2024-11-23 23:15:12,228 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/6b5915c5a/a95dec221bec458287833cd80040b27c [2024-11-23 23:15:12,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:15:12,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:15:12,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:15:12,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:15:12,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:15:12,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:12" (1/1) ... [2024-11-23 23:15:12,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d5cdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:12, skipping insertion in model container [2024-11-23 23:15:12,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:12" (1/1) ... [2024-11-23 23:15:12,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:15:12,843 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-23 23:15:12,848 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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-23 23:15:12,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:15:12,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:15:12,927 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-23 23:15:12,928 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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-23 23:15:12,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:15:13,081 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:15:13,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13 WrapperNode [2024-11-23 23:15:13,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:15:13,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:15:13,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:15:13,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:15:13,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,135 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2024-11-23 23:15:13,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:15:13,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:15:13,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:15:13,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:15:13,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,166 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]. [2024-11-23 23:15:13,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,174 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:15:13,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:15:13,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:15:13,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:15:13,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (1/1) ... [2024-11-23 23:15:13,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:13,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:15:13,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:15:13,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:15:13,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:15:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:15:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:15:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:15:13,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:15:13,360 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:15:13,362 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:15:13,422 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-23 23:15:13,422 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:15:13,430 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:15:13,431 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:15:13,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:13 BoogieIcfgContainer [2024-11-23 23:15:13,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:15:13,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:15:13,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:15:13,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:15:13,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:15:12" (1/3) ... [2024-11-23 23:15:13,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca1370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:15:13, skipping insertion in model container [2024-11-23 23:15:13,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:13" (2/3) ... [2024-11-23 23:15:13,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca1370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:15:13, skipping insertion in model container [2024-11-23 23:15:13,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:13" (3/3) ... [2024-11-23 23:15:13,440 INFO L128 eAbstractionObserver]: Analyzing ICFG log_3_unsafe.c-amalgamation.i [2024-11-23 23:15:13,459 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:15:13,461 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG log_3_unsafe.c-amalgamation.i that has 1 procedures, 12 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:15:13,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:15:13,532 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;@5f749f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:15:13,533 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:15:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2024-11-23 23:15:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-23 23:15:13,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:13,544 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:13,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:13,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:13,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028935, now seen corresponding path program 1 times [2024-11-23 23:15:13,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:13,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38600851] [2024-11-23 23:15:13,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:13,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38600851] [2024-11-23 23:15:13,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38600851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:13,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:13,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:15:13,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427187470] [2024-11-23 23:15:13,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:13,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:15:13,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:13,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:15:13,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:15:13,747 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-23 23:15:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:13,759 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-23 23:15:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:15:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-23 23:15:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:13,768 INFO L225 Difference]: With dead ends: 20 [2024-11-23 23:15:13,769 INFO L226 Difference]: Without dead ends: 8 [2024-11-23 23:15:13,771 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 [2024-11-23 23:15:13,775 INFO L435 NwaCegarLoop]: 12 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, 12 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 [2024-11-23 23:15:13,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:15:13,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-23 23:15:13,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-23 23:15:13,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2024-11-23 23:15:13,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-23 23:15:13,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2024-11-23 23:15:13,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:13,808 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-11-23 23:15:13,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-23 23:15:13,808 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-23 23:15:13,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-23 23:15:13,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:13,809 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:13,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:15:13,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:13,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:13,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1805088517, now seen corresponding path program 1 times [2024-11-23 23:15:13,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:13,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025696637] [2024-11-23 23:15:13,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:15:13,841 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:15:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:15:13,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:15:13,897 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:15:13,898 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:15:13,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:15:13,907 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 23:15:13,930 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:15:13,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:15:13 BoogieIcfgContainer [2024-11-23 23:15:13,938 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:15:13,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:15:13,939 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:15:13,939 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:15:13,940 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:13" (3/4) ... [2024-11-23 23:15:13,943 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:15:13,943 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:15:13,945 INFO L158 Benchmark]: Toolchain (without parser) took 1712.69ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 55.9MB in the end (delta: 35.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2024-11-23 23:15:13,945 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:13,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.36ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 89.1MB in the end (delta: 2.0MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-23 23:15:13,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.54ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 86.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:13,946 INFO L158 Benchmark]: Boogie Preprocessor took 47.61ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 85.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:13,948 INFO L158 Benchmark]: RCFGBuilder took 242.91ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 75.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:15:13,948 INFO L158 Benchmark]: TraceAbstraction took 505.08ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 55.9MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:15:13,948 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:13,950 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.36ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 89.1MB in the end (delta: 2.0MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.54ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 86.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.61ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 85.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 242.91ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 75.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 505.08ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 55.9MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory is still 55.9MB. 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: 854]: 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 854, overapproximation of someBinaryFLOATComparisonOperation at line 849, overapproximation of someBinaryArithmeticFLOAToperation at line 848, overapproximation of someBinaryArithmeticFLOAToperation at line 852. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d1 = 1.0f / x1; [L854] COND TRUE !(__builtin_isgreaterequal(derivative, d1)) [L854] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 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, 12 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, 12 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=12occurred 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, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2024-11-23 23:15:13,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:15:16,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:15:16,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:15:16,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:15:16,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:15:16,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:15:16,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:15:16,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:15:16,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:15:16,914 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:15:16,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:15:16,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:15:16,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:15:16,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:15:16,917 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:15:16,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:15:16,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:15:16,918 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:15:16,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:15:16,919 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:15:16,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:15:16,920 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:15:16,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:15:16,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:15:16,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:15:16,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:16,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:15:16,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:15:16,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:15:16,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:15:16,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:16,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:15:16,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:15:16,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:15:16,922 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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 -> 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 [2024-11-23 23:15:17,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:15:17,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:15:17,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:15:17,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:15:17,343 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:15:17,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i [2024-11-23 23:15:20,719 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/876be7835/2d3c31d49fb646fa9a77155f9e22d59f/FLAG45fac8cb1 [2024-11-23 23:15:21,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:15:21,216 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i [2024-11-23 23:15:21,240 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/876be7835/2d3c31d49fb646fa9a77155f9e22d59f/FLAG45fac8cb1 [2024-11-23 23:15:21,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/data/876be7835/2d3c31d49fb646fa9a77155f9e22d59f [2024-11-23 23:15:21,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:15:21,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:15:21,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:15:21,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:15:21,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:15:21,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:21" (1/1) ... [2024-11-23 23:15:21,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a2f777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:21, skipping insertion in model container [2024-11-23 23:15:21,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:15:21" (1/1) ... [2024-11-23 23:15:21,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:15:22,042 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-23 23:15:22,047 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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-23 23:15:22,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:15:22,065 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:15:22,122 WARN L1675 CHandler]: Possible shadowing of function y1 [2024-11-23 23:15:22,123 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_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-23 23:15:22,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:15:22,291 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:15:22,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22 WrapperNode [2024-11-23 23:15:22,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:15:22,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:15:22,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:15:22,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:15:22,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,345 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2024-11-23 23:15:22,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:15:22,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:15:22,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:15:22,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:15:22,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,371 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]. [2024-11-23 23:15:22,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,378 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:15:22,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:15:22,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:15:22,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:15:22,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (1/1) ... [2024-11-23 23:15:22,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:15:22,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:15:22,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:15:22,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:15:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:15:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 23:15:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:15:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:15:22,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:15:22,613 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:15:22,619 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:15:25,991 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-23 23:15:25,991 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:15:26,000 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:15:26,000 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:15:26,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:26 BoogieIcfgContainer [2024-11-23 23:15:26,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:15:26,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:15:26,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:15:26,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:15:26,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:15:21" (1/3) ... [2024-11-23 23:15:26,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a1ffa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:15:26, skipping insertion in model container [2024-11-23 23:15:26,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:15:22" (2/3) ... [2024-11-23 23:15:26,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a1ffa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:15:26, skipping insertion in model container [2024-11-23 23:15:26,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:26" (3/3) ... [2024-11-23 23:15:26,011 INFO L128 eAbstractionObserver]: Analyzing ICFG log_3_unsafe.c-amalgamation.i [2024-11-23 23:15:26,027 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:15:26,029 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG log_3_unsafe.c-amalgamation.i that has 1 procedures, 11 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:15:26,077 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:15:26,088 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;@6afeada2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:15:26,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:15:26,092 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) [2024-11-23 23:15:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-23 23:15:26,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:26,097 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-23 23:15:26,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:26,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-23 23:15:26,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:15:26,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314125954] [2024-11-23 23:15:26,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:26,113 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 [2024-11-23 23:15:26,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:15:26,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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) [2024-11-23 23:15:26,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 [2024-11-23 23:15:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:26,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:15:26,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:15:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:15:26,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:15:26,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:15:26,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314125954] [2024-11-23 23:15:26,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314125954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:15:26,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:15:26,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:15:26,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311131344] [2024-11-23 23:15:26,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:15:26,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:15:26,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:15:26,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:15:26,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:15:26,547 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) [2024-11-23 23:15:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:26,559 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-23 23:15:26,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:15:26,561 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 [2024-11-23 23:15:26,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:26,567 INFO L225 Difference]: With dead ends: 19 [2024-11-23 23:15:26,568 INFO L226 Difference]: Without dead ends: 7 [2024-11-23 23:15:26,572 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 [2024-11-23 23:15:26,576 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 [2024-11-23 23:15:26,577 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] [2024-11-23 23:15:26,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-23 23:15:26,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-23 23:15:26,598 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) [2024-11-23 23:15:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-23 23:15:26,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-23 23:15:26,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:26,606 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-23 23:15:26,607 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) [2024-11-23 23:15:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-23 23:15:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-23 23:15:26,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:26,608 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-23 23:15:26,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 [2024-11-23 23:15:26,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 [2024-11-23 23:15:26,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:15:26,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-23 23:15:26,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:15:26,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010434777] [2024-11-23 23:15:26,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:15:26,811 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 [2024-11-23 23:15:26,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:15:26,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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) [2024-11-23 23:15:26,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 [2024-11-23 23:15:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:15:27,207 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:15:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:15:27,584 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-23 23:15:27,584 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:15:27,585 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:15:27,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 [2024-11-23 23:15:27,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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 [2024-11-23 23:15:27,795 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 23:15:27,810 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:15:27,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:15:27 BoogieIcfgContainer [2024-11-23 23:15:27,813 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:15:27,814 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:15:27,814 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:15:27,814 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:15:27,815 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:15:26" (3/4) ... [2024-11-23 23:15:27,817 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:15:27,818 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:15:27,819 INFO L158 Benchmark]: Toolchain (without parser) took 6552.43ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 51.8MB in the end (delta: 6.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-23 23:15:27,819 INFO L158 Benchmark]: CDTParser took 2.24ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:27,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1024.79ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 37.9MB in the end (delta: 20.0MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-11-23 23:15:27,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.74ms. Allocated memory is still 83.9MB. Free memory was 37.9MB in the beginning and 35.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:27,820 INFO L158 Benchmark]: Boogie Preprocessor took 39.69ms. Allocated memory is still 83.9MB. Free memory was 35.1MB in the beginning and 33.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:27,820 INFO L158 Benchmark]: RCFGBuilder took 3614.11ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 48.0MB in the end (delta: -14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:15:27,820 INFO L158 Benchmark]: TraceAbstraction took 1810.17ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 52.3MB in the end (delta: -4.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-11-23 23:15:27,821 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 51.8MB in the end (delta: 421.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:15:27,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.24ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1024.79ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 37.9MB in the end (delta: 20.0MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.74ms. Allocated memory is still 83.9MB. Free memory was 37.9MB in the beginning and 35.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.69ms. Allocated memory is still 83.9MB. Free memory was 35.1MB in the beginning and 33.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3614.11ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 48.0MB in the end (delta: -14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1810.17ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 52.3MB in the end (delta: -4.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 51.8MB in the end (delta: 421.1kB). 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: 854]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of logf at line 850, overapproximation of __builtin_isinf_sign at line 849. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; VAL [x1=8589934592] [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d1 = 1.0f / x1; VAL [d1=0.00000000011641532182693481, derivative=0.0] [L854] COND TRUE !(__builtin_isgreaterequal(derivative, d1)) [L854] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, 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, 0.7s 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 [2024-11-23 23:15:27,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bf0451-e2e1-4cf2-9ba0-f7781a9ad721/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