./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 22:49:44,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 22:49:44,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 22:49:44,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 22:49:44,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 22:49:44,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 22:49:44,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 22:49:44,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 22:49:44,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 22:49:44,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 22:49:44,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 22:49:44,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 22:49:44,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 22:49:44,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 22:49:44,921 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 22:49:44,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 22:49:44,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 22:49:44,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 22:49:44,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 22:49:44,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 22:49:44,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 22:49:44,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 22:49:44,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 22:49:44,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 22:49:44,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 22:49:44,925 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 22:49:44,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 22:49:44,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 22:49:44,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 22:49:44,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 22:49:44,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 22:49:44,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 22:49:44,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 22:49:44,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 22:49:44,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:49:44,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 22:49:44,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 22:49:44,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 22:49:44,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 22:49:44,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 22:49:44,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 22:49:44,929 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 22:49:44,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 22:49:44,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 22:49:44,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a [2024-11-22 22:49:45,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 22:49:45,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 22:49:45,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 22:49:45,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 22:49:45,265 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 22:49:45,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2024-11-22 22:49:46,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 22:49:46,905 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 22:49:46,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2024-11-22 22:49:46,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/762c4dd73/9be120a1bf56442eb07d80b537798b00/FLAGb03e4cfd5 [2024-11-22 22:49:46,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/762c4dd73/9be120a1bf56442eb07d80b537798b00 [2024-11-22 22:49:46,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 22:49:46,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 22:49:46,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 22:49:46,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 22:49:46,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 22:49:46,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:49:46" (1/1) ... [2024-11-22 22:49:46,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fc92cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:46, skipping insertion in model container [2024-11-22 22:49:46,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:49:46" (1/1) ... [2024-11-22 22:49:46,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 22:49:47,190 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: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1601) 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:790) 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:1509) 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:1165) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1148) 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:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1628) 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:3506) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2498) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:640) 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) [2024-11-22 22:49:47,195 INFO L158 Benchmark]: Toolchain (without parser) took 265.64ms. Allocated memory is still 172.0MB. Free memory was 99.1MB in the beginning and 133.9MB in the end (delta: -34.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 22:49:47,195 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 172.0MB. Free memory was 144.9MB in the beginning and 144.7MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 22:49:47,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.37ms. Allocated memory is still 172.0MB. Free memory was 98.8MB in the beginning and 133.9MB in the end (delta: -35.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 22:49:47,197 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 172.0MB. Free memory was 144.9MB in the beginning and 144.7MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.37ms. Allocated memory is still 172.0MB. Free memory was 98.8MB in the beginning and 133.9MB in the end (delta: -35.1MB). Peak memory consumption was 6.3MB. 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: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) 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 ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 22:49:49,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 22:49:49,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-22 22:49:49,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 22:49:49,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 22:49:49,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 22:49:49,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 22:49:49,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 22:49:49,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 22:49:49,294 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 22:49:49,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 22:49:49,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 22:49:49,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 22:49:49,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 22:49:49,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 22:49:49,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 22:49:49,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 22:49:49,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 22:49:49,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 22:49:49,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 22:49:49,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 22:49:49,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 22:49:49,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 22:49:49,305 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 22:49:49,305 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 22:49:49,305 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 22:49:49,305 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 22:49:49,306 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 22:49:49,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 22:49:49,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 22:49:49,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 22:49:49,306 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 22:49:49,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 22:49:49,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 22:49:49,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 22:49:49,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 22:49:49,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:49:49,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 22:49:49,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 22:49:49,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 22:49:49,320 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 22:49:49,321 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 22:49:49,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 22:49:49,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 22:49:49,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 22:49:49,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 22:49:49,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce929d4b8e516d9e6e8f9406197408f50e5e07a2a68710af0cc8588994ada67a [2024-11-22 22:49:49,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 22:49:49,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 22:49:49,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 22:49:49,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 22:49:49,645 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 22:49:49,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2024-11-22 22:49:51,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 22:49:51,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 22:49:51,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2024-11-22 22:49:51,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b4215f9a/4c3c238d4a0c4769a68d58575bbe991a/FLAG03a8f013d [2024-11-22 22:49:51,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b4215f9a/4c3c238d4a0c4769a68d58575bbe991a [2024-11-22 22:49:51,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 22:49:51,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 22:49:51,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 22:49:51,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 22:49:51,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 22:49:51,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a22b752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51, skipping insertion in model container [2024-11-22 22:49:51,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 22:49:51,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:49:51,681 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 22:49:51,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:49:51,738 INFO L204 MainTranslator]: Completed translation [2024-11-22 22:49:51,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51 WrapperNode [2024-11-22 22:49:51,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 22:49:51,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 22:49:51,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 22:49:51,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 22:49:51,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,778 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-22 22:49:51,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 22:49:51,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 22:49:51,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 22:49:51,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 22:49:51,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,808 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,832 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-22 22:49:51,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 22:49:51,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 22:49:51,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 22:49:51,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 22:49:51,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (1/1) ... [2024-11-22 22:49:51,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:49:51,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:49:51,900 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) [2024-11-22 22:49:51,902 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 [2024-11-22 22:49:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 22:49:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 22:49:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-22 22:49:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 22:49:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 22:49:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 22:49:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 22:49:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 22:49:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 22:49:52,031 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 22:49:52,035 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 22:49:57,515 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-22 22:49:57,516 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 22:49:57,529 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 22:49:57,529 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 22:49:57,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:49:57 BoogieIcfgContainer [2024-11-22 22:49:57,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 22:49:57,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 22:49:57,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 22:49:57,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 22:49:57,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:49:51" (1/3) ... [2024-11-22 22:49:57,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffae6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:49:57, skipping insertion in model container [2024-11-22 22:49:57,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:49:51" (2/3) ... [2024-11-22 22:49:57,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffae6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:49:57, skipping insertion in model container [2024-11-22 22:49:57,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:49:57" (3/3) ... [2024-11-22 22:49:57,539 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_unwindbound5.i [2024-11-22 22:49:57,554 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 22:49:57,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 22:49:57,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 22:49:57,617 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;@46d799bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 22:49:57,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 22:49:57,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:49:57,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 22:49:57,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:49:57,627 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:49:57,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 22:49:57,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:49:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1741385281, now seen corresponding path program 1 times [2024-11-22 22:49:57,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 22:49:57,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571585355] [2024-11-22 22:49:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:49:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 22:49:57,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 22:49:57,645 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) [2024-11-22 22:49:57,648 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 [2024-11-22 22:49:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:49:57,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 22:49:57,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:49:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 22:49:57,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:49:57,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 22:49:57,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571585355] [2024-11-22 22:49:57,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571585355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:49:57,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:49:57,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:49:57,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509634657] [2024-11-22 22:49:57,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:49:57,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 22:49:57,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 22:49:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 22:49:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:49:57,929 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 22:49:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:49:57,951 INFO L93 Difference]: Finished difference Result 63 states and 93 transitions. [2024-11-22 22:49:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 22:49:57,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-22 22:49:57,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:49:57,961 INFO L225 Difference]: With dead ends: 63 [2024-11-22 22:49:57,962 INFO L226 Difference]: Without dead ends: 26 [2024-11-22 22:49:57,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:49:57,970 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:49:57,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:49:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-22 22:49:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-22 22:49:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:49:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-22 22:49:58,013 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 15 [2024-11-22 22:49:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:49:58,014 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-22 22:49:58,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 22:49:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-22 22:49:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 22:49:58,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:49:58,016 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:49:58,033 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 (2)] Forceful destruction successful, exit code 0 [2024-11-22 22:49:58,217 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 [2024-11-22 22:49:58,218 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 22:49:58,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:49:58,219 INFO L85 PathProgramCache]: Analyzing trace with hash -410163315, now seen corresponding path program 1 times [2024-11-22 22:49:58,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 22:49:58,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521655766] [2024-11-22 22:49:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:49:58,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 22:49:58,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 22:49:58,224 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) [2024-11-22 22:49:58,225 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 [2024-11-22 22:49:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:49:58,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 22:49:58,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:49:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:49:59,619 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:49:59,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 22:49:59,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521655766] [2024-11-22 22:49:59,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521655766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:49:59,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:49:59,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:49:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167026448] [2024-11-22 22:49:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:49:59,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:49:59,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 22:49:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:49:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:49:59,623 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-22 22:50:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:50:00,202 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-11-22 22:50:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:50:00,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2024-11-22 22:50:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:50:00,203 INFO L225 Difference]: With dead ends: 31 [2024-11-22 22:50:00,204 INFO L226 Difference]: Without dead ends: 30 [2024-11-22 22:50:00,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:50:00,205 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 22:50:00,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 76 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 22:50:00,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-22 22:50:00,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-22 22:50:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:50:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-22 22:50:00,212 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 16 [2024-11-22 22:50:00,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:50:00,213 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-22 22:50:00,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-22 22:50:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-22 22:50:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 22:50:00,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:50:00,215 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:50:00,229 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 [2024-11-22 22:50:00,416 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 [2024-11-22 22:50:00,416 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 22:50:00,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:50:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1864935099, now seen corresponding path program 1 times [2024-11-22 22:50:00,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 22:50:00,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381512774] [2024-11-22 22:50:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:50:00,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 22:50:00,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 22:50:00,422 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) [2024-11-22 22:50:00,423 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 [2024-11-22 22:50:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:50:00,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:50:00,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:50:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:50:03,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:50:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 22:50:07,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 22:50:07,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381512774] [2024-11-22 22:50:07,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381512774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:50:07,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:50:07,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2024-11-22 22:50:07,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784856279] [2024-11-22 22:50:07,246 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:50:07,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:50:07,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 22:50:07,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:50:07,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:50:07,249 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-22 22:50:14,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:50:14,495 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2024-11-22 22:50:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 22:50:14,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 42 [2024-11-22 22:50:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:50:14,497 INFO L225 Difference]: With dead ends: 78 [2024-11-22 22:50:14,497 INFO L226 Difference]: Without dead ends: 77 [2024-11-22 22:50:14,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2024-11-22 22:50:14,498 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 59 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-22 22:50:14,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 140 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-22 22:50:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-22 22:50:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-22 22:50:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 22:50:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2024-11-22 22:50:14,519 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 42 [2024-11-22 22:50:14,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:50:14,519 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions. [2024-11-22 22:50:14,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-22 22:50:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2024-11-22 22:50:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 22:50:14,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:50:14,524 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:50:14,547 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 (4)] Ended with exit code 0 [2024-11-22 22:50:14,725 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 [2024-11-22 22:50:14,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 22:50:14,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:50:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1972669627, now seen corresponding path program 2 times [2024-11-22 22:50:14,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 22:50:14,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935387784] [2024-11-22 22:50:14,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:50:14,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 22:50:14,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 22:50:14,730 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) [2024-11-22 22:50:14,733 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 [2024-11-22 22:50:15,290 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:50:15,290 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:50:15,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 22:50:15,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:50:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 22:50:25,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:50:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-22 22:50:37,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 22:50:37,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935387784] [2024-11-22 22:50:37,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935387784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:50:37,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:50:37,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2024-11-22 22:50:37,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957013060] [2024-11-22 22:50:37,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:50:37,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 22:50:37,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 22:50:37,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 22:50:37,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-11-22 22:50:37,389 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-22 22:51:08,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:08,929 INFO L93 Difference]: Finished difference Result 174 states and 240 transitions. [2024-11-22 22:51:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-22 22:51:08,929 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) Word has length 120 [2024-11-22 22:51:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:08,932 INFO L225 Difference]: With dead ends: 174 [2024-11-22 22:51:08,932 INFO L226 Difference]: Without dead ends: 173 [2024-11-22 22:51:08,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=533, Invalid=1447, Unknown=0, NotChecked=0, Total=1980 [2024-11-22 22:51:08,935 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 294 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:08,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 975 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time] [2024-11-22 22:51:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-22 22:51:08,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-22 22:51:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 119 states have internal predecessors, (150), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-22 22:51:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 234 transitions. [2024-11-22 22:51:08,962 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 234 transitions. Word has length 120 [2024-11-22 22:51:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:08,962 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 234 transitions. [2024-11-22 22:51:08,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-22 22:51:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 234 transitions. [2024-11-22 22:51:08,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-22 22:51:08,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:51:08,970 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:51:09,015 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 [2024-11-22 22:51:09,171 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 [2024-11-22 22:51:09,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 22:51:09,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:51:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1974824999, now seen corresponding path program 3 times [2024-11-22 22:51:09,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 22:51:09,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788297296] [2024-11-22 22:51:09,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:51:09,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 22:51:09,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 22:51:09,175 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2024-11-22 22:51:09,175 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 (6)] Waiting until timeout for monitored process [2024-11-22 22:51:09,437 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 22:51:09,437 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:51:09,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:51:09,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:51:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3604 backedges. 669 proven. 0 refuted. 0 times theorem prover too weak. 2935 trivial. 0 not checked. [2024-11-22 22:51:11,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:51:11,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 22:51:11,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788297296] [2024-11-22 22:51:11,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788297296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:51:11,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:51:11,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 22:51:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053552723] [2024-11-22 22:51:11,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:51:11,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 22:51:11,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 22:51:11,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 22:51:11,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:51:11,382 INFO L87 Difference]: Start difference. First operand 173 states and 234 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 22:51:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:51:13,115 INFO L93 Difference]: Finished difference Result 173 states and 234 transitions. [2024-11-22 22:51:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:51:13,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 276 [2024-11-22 22:51:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:51:13,151 INFO L225 Difference]: With dead ends: 173 [2024-11-22 22:51:13,151 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 22:51:13,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:51:13,153 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:51:13,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 22:51:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 22:51:13,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 22:51:13,159 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) [2024-11-22 22:51:13,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 22:51:13,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2024-11-22 22:51:13,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:51:13,161 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 22:51:13,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 22:51:13,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 22:51:13,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 22:51:13,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-22 22:51:13,164 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-22 22:51:13,182 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 (6)] Ended with exit code 0 [2024-11-22 22:51:13,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2024-11-22 22:51:13,369 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-11-22 22:51:13,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 22:51:18,565 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 22:51:18,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:51:18 BoogieIcfgContainer [2024-11-22 22:51:18,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 22:51:18,585 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 22:51:18,586 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 22:51:18,586 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 22:51:18,587 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:49:57" (3/4) ... [2024-11-22 22:51:18,589 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 22:51:18,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-22 22:51:18,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-22 22:51:18,599 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-22 22:51:18,599 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-22 22:51:18,600 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-22 22:51:18,600 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 22:51:18,600 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 22:51:18,695 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 22:51:18,695 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 22:51:18,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 22:51:18,696 INFO L158 Benchmark]: Toolchain (without parser) took 87276.25ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 40.8MB in the beginning and 52.3MB in the end (delta: -11.4MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-11-22 22:51:18,696 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 35.5MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 22:51:18,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.98ms. Allocated memory is still 60.8MB. Free memory was 40.7MB in the beginning and 26.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-22 22:51:18,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.47ms. Allocated memory is still 60.8MB. Free memory was 26.0MB in the beginning and 24.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 22:51:18,697 INFO L158 Benchmark]: Boogie Preprocessor took 80.89ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 24.3MB in the beginning and 62.8MB in the end (delta: -38.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-11-22 22:51:18,697 INFO L158 Benchmark]: RCFGBuilder took 5665.50ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 46.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-22 22:51:18,697 INFO L158 Benchmark]: TraceAbstraction took 81052.93ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 57.3MB in the end (delta: -11.9MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-11-22 22:51:18,698 INFO L158 Benchmark]: Witness Printer took 110.16ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 52.3MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 22:51:18,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 35.5MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.98ms. Allocated memory is still 60.8MB. Free memory was 40.7MB in the beginning and 26.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.47ms. Allocated memory is still 60.8MB. Free memory was 26.0MB in the beginning and 24.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.89ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 24.3MB in the beginning and 62.8MB in the end (delta: -38.6MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * RCFGBuilder took 5665.50ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 46.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 81052.93ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 57.3MB in the end (delta: -11.9MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 110.16ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 52.3MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 75.8s, OverallIterations: 5, TraceHistogramMax: 40, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 41.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 24.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 373 mSDsluCounter, 1300 SdHoareTripleChecker+Invalid, 23.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1091 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 541 IncrementalHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 209 mSDtfsCounter, 541 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 29.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=4, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 31.8s InterpolantComputationTime, 469 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 624 ConstructedInterpolants, 0 QuantifiedInterpolants, 1486 SizeOfPredicates, 14 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 4252/4786 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 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((counter + -1) % 4294967296) < 5) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (0 == counter) Ensures: ((0 == counter) && (counter == \old(counter))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (((counter + -1) % 4294967296) < 5) Ensures: ((((counter + -1) % 4294967296) < 5) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-22 22:51:18,918 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-22 22:51:18,960 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