./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-div1.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/floats-cbmc-regression/float-div1.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 dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:00:10,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:00:10,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:00:10,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:00:10,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:00:10,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:00:10,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:00:10,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:00:10,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:00:10,096 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:00:10,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:00:10,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:00:10,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:00:10,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:00:10,098 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:00:10,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:00:10,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:00:10,099 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:00:10,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:00:10,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:00:10,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:00:10,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:00:10,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:00:10,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:00:10,101 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:00:10,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:00:10,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:00:10,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:00:10,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:00:10,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:00:10,102 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:00:10,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:00:10,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:00:10,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:00:10,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:00:10,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:00:10,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:00:10,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:00:10,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:00:10,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:00:10,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:00:10,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:00:10,104 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 [2024-10-12 17:00:10,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:00:10,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:00:10,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:00:10,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:00:10,323 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:00:10,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2024-10-12 17:00:11,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:00:11,741 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:00:11,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2024-10-12 17:00:11,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc994b8/0347ec1f843a4f8681792272fab3e023/FLAGb86273a58 [2024-10-12 17:00:12,102 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc994b8/0347ec1f843a4f8681792272fab3e023 [2024-10-12 17:00:12,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:00:12,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:00:12,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:00:12,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:00:12,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:00:12,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:00:12" (1/1) ... [2024-10-12 17:00:12,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f110349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:12, skipping insertion in model container [2024-10-12 17:00:12,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:00:12" (1/1) ... [2024-10-12 17:00:12,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:00:12,459 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: fpclassify 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.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:1203) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:280) 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:788) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) 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:789) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:788) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:661) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:536) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1591) 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:1494) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) 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 17:00:12,464 INFO L158 Benchmark]: Toolchain (without parser) took 357.96ms. Allocated memory is still 123.7MB. Free memory was 68.0MB in the beginning and 54.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 17:00:12,464 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 123.7MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:00:12,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.48ms. Allocated memory is still 123.7MB. Free memory was 68.0MB in the beginning and 54.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 17:00:12,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 123.7MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.48ms. Allocated memory is still 123.7MB. Free memory was 68.0MB in the beginning and 54.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. 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: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: 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/floats-cbmc-regression/float-div1.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 dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:00:14,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:00:14,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 17:00:14,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:00:14,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:00:14,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:00:14,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:00:14,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:00:14,144 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:00:14,144 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:00:14,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:00:14,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:00:14,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:00:14,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:00:14,146 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:00:14,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:00:14,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:00:14,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:00:14,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:00:14,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:00:14,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:00:14,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:00:14,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:00:14,151 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 17:00:14,151 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 17:00:14,151 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:00:14,151 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 17:00:14,152 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:00:14,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:00:14,153 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:00:14,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:00:14,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:00:14,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:00:14,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:00:14,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:00:14,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:00:14,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:00:14,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:00:14,154 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 17:00:14,154 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 17:00:14,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:00:14,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:00:14,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:00:14,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:00:14,156 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 17:00:14,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 [2024-10-12 17:00:14,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:00:14,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:00:14,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:00:14,427 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:00:14,428 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:00:14,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2024-10-12 17:00:15,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:00:15,894 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:00:15,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2024-10-12 17:00:15,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fff59636/7e1f21811a0c41f49aee2058a6a48de0/FLAG2114f5cd2 [2024-10-12 17:00:15,919 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fff59636/7e1f21811a0c41f49aee2058a6a48de0 [2024-10-12 17:00:15,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:00:15,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:00:15,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:00:15,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:00:15,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:00:15,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:00:15" (1/1) ... [2024-10-12 17:00:15,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1fc93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:15, skipping insertion in model container [2024-10-12 17:00:15,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:00:15" (1/1) ... [2024-10-12 17:00:15,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:00:16,348 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/floats-cbmc-regression/float-div1.i[40610,40623] [2024-10-12 17:00:16,360 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/floats-cbmc-regression/float-div1.i[40902,40915] [2024-10-12 17:00:16,362 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/floats-cbmc-regression/float-div1.i[40949,40962] [2024-10-12 17:00:16,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:00:16,375 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:00:16,404 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/floats-cbmc-regression/float-div1.i[40610,40623] [2024-10-12 17:00:16,411 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/floats-cbmc-regression/float-div1.i[40902,40915] [2024-10-12 17:00:16,411 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/floats-cbmc-regression/float-div1.i[40949,40962] [2024-10-12 17:00:16,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:00:16,505 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:00:16,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16 WrapperNode [2024-10-12 17:00:16,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:00:16,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:00:16,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:00:16,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:00:16,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,559 INFO L138 Inliner]: procedures = 450, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 34 [2024-10-12 17:00:16,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:00:16,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:00:16,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:00:16,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:00:16,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,582 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 17:00:16,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,596 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:00:16,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:00:16,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:00:16,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:00:16,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (1/1) ... [2024-10-12 17:00:16,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:00:16,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:00:16,633 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 17:00:16,637 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 17:00:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 17:00:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:00:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:00:16,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:00:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 17:00:16,674 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 17:00:16,752 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:00:16,754 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:00:21,754 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-12 17:00:21,754 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:00:21,773 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:00:21,773 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 17:00:21,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:00:21 BoogieIcfgContainer [2024-10-12 17:00:21,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:00:21,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:00:21,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:00:21,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:00:21,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:00:15" (1/3) ... [2024-10-12 17:00:21,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477789cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:00:21, skipping insertion in model container [2024-10-12 17:00:21,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:00:16" (2/3) ... [2024-10-12 17:00:21,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477789cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:00:21, skipping insertion in model container [2024-10-12 17:00:21,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:00:21" (3/3) ... [2024-10-12 17:00:21,781 INFO L112 eAbstractionObserver]: Analyzing ICFG float-div1.i [2024-10-12 17:00:21,793 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:00:21,794 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-12 17:00:21,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:00:21,851 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;@20284a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:00:21,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-12 17:00:21,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.5) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 17:00:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-12 17:00:21,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:00:21,860 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:00:21,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:00:21,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:00:21,865 INFO L85 PathProgramCache]: Analyzing trace with hash -445238460, now seen corresponding path program 1 times [2024-10-12 17:00:21,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:00:21,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966164618] [2024-10-12 17:00:21,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:00:21,876 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 17:00:21,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:00:21,879 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 17:00:21,880 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 17:00:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:00:22,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 17:00:22,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:00:22,189 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 17:00:22,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:00:22,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:00:22,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966164618] [2024-10-12 17:00:22,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966164618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:00:22,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:00:22,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:00:22,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840761083] [2024-10-12 17:00:22,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:00:22,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:00:22,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:00:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:00:22,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:00:22,216 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.5) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 17:00:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:00:22,248 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2024-10-12 17:00:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:00:22,250 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-10-12 17:00:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:00:22,254 INFO L225 Difference]: With dead ends: 40 [2024-10-12 17:00:22,254 INFO L226 Difference]: Without dead ends: 19 [2024-10-12 17:00:22,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 17:00:22,258 INFO L432 NwaCegarLoop]: 19 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, 19 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 17:00:22,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:00:22,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-12 17:00:22,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-12 17:00:22,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 17:00:22,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-10-12 17:00:22,282 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2024-10-12 17:00:22,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:00:22,282 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-10-12 17:00:22,282 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 17:00:22,283 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-10-12 17:00:22,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-12 17:00:22,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:00:22,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:00:22,293 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 17:00:22,485 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 17:00:22,486 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:00:22,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:00:22,487 INFO L85 PathProgramCache]: Analyzing trace with hash -387980158, now seen corresponding path program 1 times [2024-10-12 17:00:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:00:22,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191739545] [2024-10-12 17:00:22,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:00:22,488 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 17:00:22,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:00:22,490 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 17:00:22,491 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 17:00:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:00:22,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-12 17:00:22,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:00:37,659 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-12 17:00:41,719 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_inductiveStepHunt_~startState#1_9| (_ FloatingPoint 8 24))) (and (fp.isNormal |v_ULTIMATE.start_inductiveStepHunt_~startState#1_9|) (= |c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0#1| (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |v_ULTIMATE.start_inductiveStepHunt_~startState#1_9| (fp.div c_currentRoundingMode .cse0 |v_ULTIMATE.start_inductiveStepHunt_~startState#1_9|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))))) (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) |v_ULTIMATE.start_inductiveStepHunt_~startState#1_9|))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-10-12 17:00:58,273 WARN L286 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-12 17:01:02,324 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 17:01:02,325 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:01:02,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:01:02,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191739545] [2024-10-12 17:01:02,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191739545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:01:02,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:01:02,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 17:01:02,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430385062] [2024-10-12 17:01:02,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:01:02,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 17:01:02,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:01:02,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 17:01:02,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=27, Unknown=1, NotChecked=10, Total=56 [2024-10-12 17:01:02,331 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 17:01:05,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:01:06,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:01:06,669 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2024-10-12 17:01:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 17:01:06,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-10-12 17:01:06,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:01:06,671 INFO L225 Difference]: With dead ends: 23 [2024-10-12 17:01:06,671 INFO L226 Difference]: Without dead ends: 21 [2024-10-12 17:01:06,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=18, Invalid=27, Unknown=1, NotChecked=10, Total=56 [2024-10-12 17:01:06,672 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-12 17:01:06,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 19 Unchecked, 4.3s Time] [2024-10-12 17:01:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-10-12 17:01:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-12 17:01:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 17:01:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2024-10-12 17:01:06,677 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 9 [2024-10-12 17:01:06,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:01:06,677 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2024-10-12 17:01:06,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 17:01:06,677 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2024-10-12 17:01:06,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 17:01:06,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:01:06,678 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:01:06,690 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-10-12 17:01:06,878 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 17:01:06,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:01:06,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:01:06,880 INFO L85 PathProgramCache]: Analyzing trace with hash -247934116, now seen corresponding path program 1 times [2024-10-12 17:01:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:01:06,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822719330] [2024-10-12 17:01:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:01:06,881 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 17:01:06,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:01:06,882 INFO L229 MonitoredProcess]: Starting monitored process 4 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 17:01:06,911 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 (4)] Waiting until timeout for monitored process [2024-10-12 17:01:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:01:07,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 17:01:07,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:01:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 17:01:07,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:01:07,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:01:07,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822719330] [2024-10-12 17:01:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822719330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:01:07,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:01:07,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:01:07,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728880366] [2024-10-12 17:01:07,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:01:07,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 17:01:07,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:01:07,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 17:01:07,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:01:07,466 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 17:01:11,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:01:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:01:11,845 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2024-10-12 17:01:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 17:01:11,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-12 17:01:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:01:11,847 INFO L225 Difference]: With dead ends: 21 [2024-10-12 17:01:11,847 INFO L226 Difference]: Without dead ends: 19 [2024-10-12 17:01:11,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:01:11,848 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-10-12 17:01:11,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-10-12 17:01:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-12 17:01:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-12 17:01:11,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 17:01:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2024-10-12 17:01:11,852 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2024-10-12 17:01:11,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:01:11,853 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2024-10-12 17:01:11,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-12 17:01:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2024-10-12 17:01:11,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 17:01:11,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:01:11,854 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:01:11,867 INFO L540 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 (4)] Forceful destruction successful, exit code 0 [2024-10-12 17:01:12,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 17:01:12,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:01:12,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:01:12,055 INFO L85 PathProgramCache]: Analyzing trace with hash 903981084, now seen corresponding path program 1 times [2024-10-12 17:01:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:01:12,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233178521] [2024-10-12 17:01:12,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:01:12,056 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 17:01:12,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:01:12,060 INFO L229 MonitoredProcess]: Starting monitored process 5 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 17:01:12,061 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 (5)] Waiting until timeout for monitored process [2024-10-12 17:01:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:01:12,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 17:01:12,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:01:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 17:01:17,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:01:17,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:01:17,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233178521] [2024-10-12 17:01:17,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233178521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:01:17,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:01:17,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 17:01:17,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11949970] [2024-10-12 17:01:17,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:01:17,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 17:01:17,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:01:17,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 17:01:17,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-12 17:01:17,273 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 17:01:21,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:01:25,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:01:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:01:27,095 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2024-10-12 17:01:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 17:01:27,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-10-12 17:01:27,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:01:27,111 INFO L225 Difference]: With dead ends: 19 [2024-10-12 17:01:27,111 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 17:01:27,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-12 17:01:27,113 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-10-12 17:01:27,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2024-10-12 17:01:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 17:01:27,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 17:01:27,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 17:01:27,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 17:01:27,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-10-12 17:01:27,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:01:27,115 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 17:01:27,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 17:01:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 17:01:27,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 17:01:27,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-12 17:01:27,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-10-12 17:01:27,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-10-12 17:01:27,130 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 (5)] Ended with exit code 0 [2024-10-12 17:01:27,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 17:01:27,321 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-12 17:01:27,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 17:01:27,513 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:01:27,523 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:01:27,524 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-12 17:01:27,527 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:01:27,527 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-12 17:01:27,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:01:27 BoogieIcfgContainer [2024-10-12 17:01:27,529 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:01:27,529 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:01:27,530 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:01:27,530 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:01:27,530 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:00:21" (3/4) ... [2024-10-12 17:01:27,533 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 17:01:27,536 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-12 17:01:27,539 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-12 17:01:27,540 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 17:01:27,540 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 17:01:27,540 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 17:01:27,611 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 17:01:27,612 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 17:01:27,612 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:01:27,612 INFO L158 Benchmark]: Toolchain (without parser) took 71690.14ms. Allocated memory was 60.8MB in the beginning and 98.6MB in the end (delta: 37.7MB). Free memory was 31.9MB in the beginning and 54.0MB in the end (delta: -22.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-10-12 17:01:27,612 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:01:27,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.05ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 31.6MB in the beginning and 44.0MB in the end (delta: -12.4MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-10-12 17:01:27,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.07ms. Allocated memory is still 81.8MB. Free memory was 44.0MB in the beginning and 41.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:01:27,613 INFO L158 Benchmark]: Boogie Preprocessor took 39.81ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 17:01:27,613 INFO L158 Benchmark]: RCFGBuilder took 5171.28ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 52.2MB in the end (delta: -13.2MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-10-12 17:01:27,613 INFO L158 Benchmark]: TraceAbstraction took 65754.48ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 51.7MB in the beginning and 58.9MB in the end (delta: -7.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-10-12 17:01:27,613 INFO L158 Benchmark]: Witness Printer took 82.20ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 54.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 17:01:27,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.05ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 31.6MB in the beginning and 44.0MB in the end (delta: -12.4MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.07ms. Allocated memory is still 81.8MB. Free memory was 44.0MB in the beginning and 41.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.81ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 5171.28ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 52.2MB in the end (delta: -13.2MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 65754.48ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 51.7MB in the beginning and 58.9MB in the end (delta: -7.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Witness Printer took 82.20ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 54.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 384]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 391]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 392]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 65.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 18.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 18.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 19 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 41 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 44.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 3 QuantifiedInterpolants, 267 SizeOfPredicates, 3 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - ProcedureContractResult [Line: 2]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (0 != cond) RESULT: Ultimate proved your program to be correct! [2024-10-12 17:01:27,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE