./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:55:14,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:55:14,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:55:14,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:55:14,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:55:14,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:55:14,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:55:14,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:55:14,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:55:14,525 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:55:14,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:55:14,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:55:14,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:55:14,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:55:14,531 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:55:14,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:55:14,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:55:14,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:55:14,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:55:14,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:55:14,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:55:14,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:55:14,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:55:14,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:55:14,534 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:55:14,534 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:55:14,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:55:14,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:55:14,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:55:14,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:55:14,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:55:14,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:55:14,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:55:14,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:55:14,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:55:14,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:55:14,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:55:14,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:55:14,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:55:14,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:55:14,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:55:14,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:55:14,540 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab [2024-10-12 17:55:14,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:55:14,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:55:14,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:55:14,850 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:55:14,850 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:55:14,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2024-10-12 17:55:16,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:55:16,566 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:55:16,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2024-10-12 17:55:16,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24c86b228/b6a9cbd98eb64242a83cf216c6005308/FLAG9cc950346 [2024-10-12 17:55:16,608 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24c86b228/b6a9cbd98eb64242a83cf216c6005308 [2024-10-12 17:55:16,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:55:16,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:55:16,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:55:16,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:55:16,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:55:16,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:55:16" (1/1) ... [2024-10-12 17:55:16,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0a6e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:16, skipping insertion in model container [2024-10-12 17:55:16,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:55:16" (1/1) ... [2024-10-12 17:55:16,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:55:17,151 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2916) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$132(StandardFunctionHandler.java:605) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1586) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2547) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2547) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2547) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1736) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:233) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:387) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1613) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3465) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2491) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:639) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-10-12 17:55:17,156 INFO L158 Benchmark]: Toolchain (without parser) took 542.72ms. Allocated memory is still 184.5MB. Free memory was 125.2MB in the beginning and 108.8MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 17:55:17,157 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory was 149.3MB in the beginning and 149.0MB in the end (delta: 293.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:55:17,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.27ms. Allocated memory is still 184.5MB. Free memory was 125.2MB in the beginning and 108.8MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 17:55:17,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory was 149.3MB in the beginning and 149.0MB in the end (delta: 293.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.27ms. Allocated memory is still 184.5MB. Free memory was 125.2MB in the beginning and 108.8MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:55:19,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:55:19,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 17:55:19,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:55:19,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:55:19,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:55:19,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:55:19,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:55:19,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:55:19,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:55:19,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:55:19,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:55:19,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:55:19,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:55:19,293 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:55:19,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:55:19,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:55:19,296 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:55:19,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:55:19,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:55:19,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:55:19,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:55:19,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:55:19,299 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 17:55:19,299 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 17:55:19,299 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:55:19,300 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 17:55:19,300 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:55:19,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:55:19,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:55:19,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:55:19,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:55:19,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:55:19,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:55:19,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:55:19,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:55:19,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:55:19,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:55:19,311 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 17:55:19,311 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 17:55:19,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:55:19,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:55:19,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:55:19,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:55:19,313 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 17:55:19,313 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc7be18842fd79931346956a992b6547d2ca6922379c0dd3837a0815e9ffa9ab [2024-10-12 17:55:19,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:55:19,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:55:19,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:55:19,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:55:19,649 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:55:19,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2024-10-12 17:55:21,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:55:21,616 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:55:21,625 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i [2024-10-12 17:55:21,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ced3c41/64534f4b5d2a49ec975f1f5e172cca2a/FLAG6a5bb4770 [2024-10-12 17:55:21,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ced3c41/64534f4b5d2a49ec975f1f5e172cca2a [2024-10-12 17:55:21,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:55:21,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:55:21,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:55:21,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:55:21,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:55:21,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:55:21" (1/1) ... [2024-10-12 17:55:21,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3477852d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:21, skipping insertion in model container [2024-10-12 17:55:21,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:55:21" (1/1) ... [2024-10-12 17:55:21,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:55:22,636 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i[63016,63029] [2024-10-12 17:55:22,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:55:22,655 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:55:22,695 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/exp_1_safe.c-amalgamation.i[63016,63029] [2024-10-12 17:55:22,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:55:22,800 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:55:22,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22 WrapperNode [2024-10-12 17:55:22,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:55:22,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:55:22,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:55:22,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:55:22,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,860 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-10-12 17:55:22,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:55:22,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:55:22,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:55:22,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:55:22,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,890 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]. [2024-10-12 17:55:22,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:55:22,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:55:22,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:55:22,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:55:22,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (1/1) ... [2024-10-12 17:55:22,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:55:22,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:55:22,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:55:22,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:55:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 17:55:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-12 17:55:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:55:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:55:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:55:23,080 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:55:23,082 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:55:23,254 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-10-12 17:55:23,255 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:55:23,294 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:55:23,294 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 17:55:23,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:55:23 BoogieIcfgContainer [2024-10-12 17:55:23,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:55:23,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:55:23,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:55:23,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:55:23,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:55:21" (1/3) ... [2024-10-12 17:55:23,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387916b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:55:23, skipping insertion in model container [2024-10-12 17:55:23,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:55:22" (2/3) ... [2024-10-12 17:55:23,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387916b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:55:23, skipping insertion in model container [2024-10-12 17:55:23,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:55:23" (3/3) ... [2024-10-12 17:55:23,302 INFO L112 eAbstractionObserver]: Analyzing ICFG exp_1_safe.c-amalgamation.i [2024-10-12 17:55:23,319 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:55:23,320 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:55:23,375 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:55:23,384 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;@71f52247, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:55:23,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:55:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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) [2024-10-12 17:55:23,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-12 17:55:23,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:55:23,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-12 17:55:23,398 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:55:23,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:55:23,405 INFO L85 PathProgramCache]: Analyzing trace with hash 49104602, now seen corresponding path program 1 times [2024-10-12 17:55:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:55:23,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158094962] [2024-10-12 17:55:23,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:55:23,419 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 [2024-10-12 17:55:23,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:55:23,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-12 17:55:23,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-12 17:55:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:55:23,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 17:55:23,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:55:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:55:23,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:55:23,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:55:23,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158094962] [2024-10-12 17:55:23,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158094962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:55:23,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:55:23,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:55:23,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519697977] [2024-10-12 17:55:23,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:55:23,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:55:23,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:55:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:55:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:55:23,590 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-12 17:55:23,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:55:23,615 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-10-12 17:55:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:55:23,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-12 17:55:23,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:55:23,625 INFO L225 Difference]: With dead ends: 14 [2024-10-12 17:55:23,625 INFO L226 Difference]: Without dead ends: 6 [2024-10-12 17:55:23,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:55:23,632 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:55:23,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:55:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2024-10-12 17:55:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-10-12 17:55:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2024-10-12 17:55:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2024-10-12 17:55:23,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2024-10-12 17:55:23,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:55:23,669 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2024-10-12 17:55:23,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-12 17:55:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2024-10-12 17:55:23,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-12 17:55:23,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:55:23,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-12 17:55:23,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-12 17:55:23,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-12 17:55:23,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:55:23,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:55:23,872 INFO L85 PathProgramCache]: Analyzing trace with hash 49164184, now seen corresponding path program 1 times [2024-10-12 17:55:23,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:55:23,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139397685] [2024-10-12 17:55:23,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:55:23,873 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 [2024-10-12 17:55:23,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:55:23,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-12 17:55:23,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-12 17:55:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:55:23,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:55:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:55:24,021 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-12 17:55:24,021 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:55:24,023 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:55:24,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-12 17:55:24,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-12 17:55:24,228 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-12 17:55:24,240 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:55:24,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:55:24 BoogieIcfgContainer [2024-10-12 17:55:24,243 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:55:24,244 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:55:24,244 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:55:24,244 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:55:24,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:55:23" (3/4) ... [2024-10-12 17:55:24,246 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 17:55:24,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:55:24,248 INFO L158 Benchmark]: Toolchain (without parser) took 2385.80ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 33.5MB in the beginning and 39.2MB in the end (delta: -5.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-10-12 17:55:24,248 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 41.9MB. Free memory was 25.5MB in the beginning and 25.4MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:55:24,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 937.12ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 33.2MB in the beginning and 30.7MB in the end (delta: 2.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-10-12 17:55:24,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.22ms. Allocated memory is still 67.1MB. Free memory was 30.7MB in the beginning and 28.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:55:24,249 INFO L158 Benchmark]: Boogie Preprocessor took 39.77ms. Allocated memory is still 67.1MB. Free memory was 28.0MB in the beginning and 25.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:55:24,249 INFO L158 Benchmark]: RCFGBuilder took 389.19ms. Allocated memory is still 67.1MB. Free memory was 25.9MB in the beginning and 31.3MB in the end (delta: -5.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:55:24,251 INFO L158 Benchmark]: TraceAbstraction took 946.57ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 30.6MB in the beginning and 39.7MB in the end (delta: -9.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-10-12 17:55:24,251 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.2MB in the end (delta: 466.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:55:24,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 41.9MB. Free memory was 25.5MB in the beginning and 25.4MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 937.12ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 33.2MB in the beginning and 30.7MB in the end (delta: 2.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.22ms. Allocated memory is still 67.1MB. Free memory was 30.7MB in the beginning and 28.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.77ms. Allocated memory is still 67.1MB. Free memory was 28.0MB in the beginning and 25.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 389.19ms. Allocated memory is still 67.1MB. Free memory was 25.9MB in the beginning and 31.3MB in the end (delta: -5.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 946.57ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 30.6MB in the beginning and 39.7MB in the end (delta: -9.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.2MB in the end (delta: 466.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 851]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of expf at line 849. Possible FailurePath: [L847] float x = __VERIFIER_nondet_float(); [L848] COND FALSE !(!(!__builtin_isnan (x))) VAL [x=0.0] [L849] float y = expf(x); [L850] float z = x + 1.0f; VAL [y=0.0, z=1.0] [L851] COND TRUE !(__builtin_isgreaterequal(y, z)) [L851] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-12 17:55:24,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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