./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1becd92d028c10a3314710ad229c598abcd9e8ddee3b4e3816d9caa8036aeafa --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:51:36,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:51:36,480 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-29 10:51:36,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:51:36,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:51:36,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:51:36,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:51:36,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:51:36,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:51:36,507 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:51:36,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:51:36,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:51:36,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:51:36,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:51:36,508 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:51:36,510 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:51:36,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:51:36,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:51:36,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:51:36,511 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1becd92d028c10a3314710ad229c598abcd9e8ddee3b4e3816d9caa8036aeafa [2025-04-29 10:51:36,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:51:36,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:51:36,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:51:36,727 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:51:36,727 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:51:36,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c [2025-04-29 10:51:37,950 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b58166f/c49a151b6ec443c39e8b6d3fb6a879b0/FLAG7b4332808 [2025-04-29 10:51:38,127 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:51:38,128 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c [2025-04-29 10:51:38,129 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:51:38,129 WARN L117 ultiparseSymbolTable]: System include fenv.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:51:38,129 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:51:38,133 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b58166f/c49a151b6ec443c39e8b6d3fb6a879b0/FLAG7b4332808 [2025-04-29 10:51:39,001 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46b58166f/c49a151b6ec443c39e8b6d3fb6a879b0 [2025-04-29 10:51:39,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:51:39,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:51:39,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:51:39,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:51:39,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:51:39,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:51:39" (1/1) ... [2025-04-29 10:51:39,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9f542b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:39, skipping insertion in model container [2025-04-29 10:51:39,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:51:39" (1/1) ... [2025-04-29 10:51:39,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:51:39,144 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c[261,274] [2025-04-29 10:51:39,151 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf 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.library.MathLibraryModel.handleUnaryFloatFunction(MathLibraryModel.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.library.LibraryModelHandler.translateStandardFunction(LibraryModelHandler.java:124) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:154) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2652) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:166) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:180) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:665) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1709) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:154) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1597) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1228) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:145) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:391) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1731) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3613) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2596) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:699) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:114) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-29 10:51:39,156 INFO L158 Benchmark]: Toolchain (without parser) took 151.84ms. Allocated memory is still 201.3MB. Free memory was 158.5MB in the beginning and 147.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:51:39,156 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:51:39,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.41ms. Allocated memory is still 201.3MB. Free memory was 158.1MB in the beginning and 147.2MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:51:39,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.41ms. Allocated memory is still 201.3MB. Free memory was 158.1MB in the beginning and 147.2MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. 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: isinf de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf: 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/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1becd92d028c10a3314710ad229c598abcd9e8ddee3b4e3816d9caa8036aeafa --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:51:40,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:51:40,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-29 10:51:40,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:51:40,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:51:40,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:51:40,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:51:40,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:51:40,814 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:51:40,814 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:51:40,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:51:40,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:51:40,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:51:40,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:51:40,814 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:51:40,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:51:40,815 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:51:40,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:51:40,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:51:40,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:51:40,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:51:40,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:51:40,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:51:40,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:51:40,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:51:40,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:51:40,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:51:40,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:51:40,819 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:51:40,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:51:40,820 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-29 10:51:40,820 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:40,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:51:40,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:51:40,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:51:40,820 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1becd92d028c10a3314710ad229c598abcd9e8ddee3b4e3816d9caa8036aeafa [2025-04-29 10:51:41,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:51:41,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:51:41,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:51:41,065 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:51:41,065 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:51:41,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c [2025-04-29 10:51:42,308 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c75f53d/a72146b4c86a43539b6244d0b498368e/FLAG81d0f66e5 [2025-04-29 10:51:42,482 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:51:42,482 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c [2025-04-29 10:51:42,483 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:51:42,483 WARN L117 ultiparseSymbolTable]: System include fenv.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:51:42,483 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:51:42,488 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c75f53d/a72146b4c86a43539b6244d0b498368e/FLAG81d0f66e5 [2025-04-29 10:51:43,308 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c75f53d/a72146b4c86a43539b6244d0b498368e [2025-04-29 10:51:43,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:51:43,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:51:43,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:51:43,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:51:43,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:51:43,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235da940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43, skipping insertion in model container [2025-04-29 10:51:43,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:51:43,440 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c[261,274] [2025-04-29 10:51:43,451 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:51:43,459 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:51:43,474 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/round_nondet.c[261,274] [2025-04-29 10:51:43,478 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:51:43,489 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:51:43,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43 WrapperNode [2025-04-29 10:51:43,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:51:43,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:51:43,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:51:43,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:51:43,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,514 INFO L138 Inliner]: procedures = 9, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2025-04-29 10:51:43,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:51:43,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:51:43,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:51:43,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:51:43,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,533 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 10:51:43,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,541 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:51:43,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:51:43,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:51:43,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:51:43,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (1/1) ... [2025-04-29 10:51:43,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:51:43,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:51:43,580 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) [2025-04-29 10:51:43,583 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 [2025-04-29 10:51:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2025-04-29 10:51:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2025-04-29 10:51:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:51:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:51:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-04-29 10:51:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-04-29 10:51:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-04-29 10:51:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-04-29 10:51:43,650 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:51:43,651 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:51:43,759 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-04-29 10:51:43,759 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:51:43,765 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:51:43,765 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 10:51:43,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:51:43 BoogieIcfgContainer [2025-04-29 10:51:43,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:51:43,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:51:43,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:51:43,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:51:43,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:51:43" (1/3) ... [2025-04-29 10:51:43,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc5e51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:51:43, skipping insertion in model container [2025-04-29 10:51:43,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:51:43" (2/3) ... [2025-04-29 10:51:43,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc5e51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:51:43, skipping insertion in model container [2025-04-29 10:51:43,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:51:43" (3/3) ... [2025-04-29 10:51:43,772 INFO L128 eAbstractionObserver]: Analyzing ICFG round_nondet.c [2025-04-29 10:51:43,783 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:51:43,785 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG round_nondet.c that has 4 procedures, 35 locations, 55 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-29 10:51:43,830 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:51:43,840 INFO L340 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;@d922450, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:51:43,840 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-29 10:51:43,843 INFO L278 IsEmpty]: Start isEmpty. Operand has 35 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-04-29 10:51:43,847 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-04-29 10:51:43,848 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:51:43,848 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:51:43,849 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:51:43,853 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:51:43,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1502520411, now seen corresponding path program 1 times [2025-04-29 10:51:43,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:51:43,862 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523634208] [2025-04-29 10:51:43,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:43,863 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 [2025-04-29 10:51:43,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:51:43,886 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) [2025-04-29 10:51:43,888 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 [2025-04-29 10:51:43,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-29 10:51:43,945 ERROR L246 FreeRefinementEngine]: Caught known exception: unknown symbol: roundNearestTiesToAway (line: 309) [2025-04-29 10:51:43,945 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1369390341] [2025-04-29 10:51:43,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:43,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:43,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-04-29 10:51:43,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-04-29 10:51:43,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2025-04-29 10:51:43,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-29 10:51:44,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-29 10:51:44,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:51:44,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:51:44,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-04-29 10:51:44,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 10:51:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-29 10:51:44,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 10:51:44,024 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 10:51:44,025 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523634208] [2025-04-29 10:51:44,025 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-29 10:51:44,025 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1369390341] [2025-04-29 10:51:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1369390341] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:51:44,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:51:44,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 10:51:44,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114528535] [2025-04-29 10:51:44,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:51:44,030 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-29 10:51:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 10:51:44,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-29 10:51:44,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 10:51:44,044 INFO L87 Difference]: Start difference. First operand has 35 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:51:44,060 INFO L93 Difference]: Finished difference Result 67 states and 95 transitions. [2025-04-29 10:51:44,061 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-29 10:51:44,062 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2025-04-29 10:51:44,062 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:51:44,066 INFO L225 Difference]: With dead ends: 67 [2025-04-29 10:51:44,066 INFO L226 Difference]: Without dead ends: 32 [2025-04-29 10:51:44,068 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 10:51:44,070 INFO L437 NwaCegarLoop]: 44 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, 44 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 [2025-04-29 10:51:44,070 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 10:51:44,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-04-29 10:51:44,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2025-04-29 10:51:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-04-29 10:51:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2025-04-29 10:51:44,097 INFO L79 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 27 [2025-04-29 10:51:44,097 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:51:44,097 INFO L485 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2025-04-29 10:51:44,097 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:44,097 INFO L278 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2025-04-29 10:51:44,098 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-04-29 10:51:44,098 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:51:44,098 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:51:44,100 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 [2025-04-29 10:51:44,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2025-04-29 10:51:44,499 WARN L466 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=3,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:44,499 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:51:44,499 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:51:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1007136155, now seen corresponding path program 1 times [2025-04-29 10:51:44,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:51:44,500 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307260847] [2025-04-29 10:51:44,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:44,500 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 [2025-04-29 10:51:44,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:51:44,502 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) [2025-04-29 10:51:44,503 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 [2025-04-29 10:51:44,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-29 10:51:44,530 ERROR L246 FreeRefinementEngine]: Caught known exception: unknown symbol: roundNearestTiesToAway (line: 313) [2025-04-29 10:51:44,530 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1418643605] [2025-04-29 10:51:44,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:44,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:44,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-04-29 10:51:44,532 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-04-29 10:51:44,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2025-04-29 10:51:44,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-29 10:51:44,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-29 10:51:44,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:51:44,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:51:44,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 10:51:44,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 10:51:44,868 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-29 10:51:44,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 10:51:44,868 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 10:51:44,868 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307260847] [2025-04-29 10:51:44,868 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-29 10:51:44,868 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418643605] [2025-04-29 10:51:44,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1418643605] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:51:44,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:51:44,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 10:51:44,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103793930] [2025-04-29 10:51:44,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:51:44,869 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 10:51:44,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 10:51:44,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 10:51:44,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 10:51:44,870 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:45,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:51:45,134 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2025-04-29 10:51:45,137 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-29 10:51:45,137 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2025-04-29 10:51:45,137 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:51:45,138 INFO L225 Difference]: With dead ends: 81 [2025-04-29 10:51:45,138 INFO L226 Difference]: Without dead ends: 55 [2025-04-29 10:51:45,139 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-04-29 10:51:45,139 INFO L437 NwaCegarLoop]: 42 mSDtfsCounter, 20 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-29 10:51:45,139 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 134 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-29 10:51:45,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-04-29 10:51:45,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2025-04-29 10:51:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 states have internal predecessors, (37), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 12 states have call successors, (13) [2025-04-29 10:51:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2025-04-29 10:51:45,151 INFO L79 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 27 [2025-04-29 10:51:45,151 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:51:45,151 INFO L485 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2025-04-29 10:51:45,151 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:45,151 INFO L278 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2025-04-29 10:51:45,151 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-04-29 10:51:45,151 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:51:45,151 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:51:45,154 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 [2025-04-29 10:51:45,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2025-04-29 10:51:45,552 WARN L466 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:45,552 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:51:45,552 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:51:45,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1139151692, now seen corresponding path program 1 times [2025-04-29 10:51:45,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:51:45,553 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558273969] [2025-04-29 10:51:45,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:45,553 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 [2025-04-29 10:51:45,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:51:45,556 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) [2025-04-29 10:51:45,556 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 [2025-04-29 10:51:45,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 10:51:45,574 ERROR L246 FreeRefinementEngine]: Caught known exception: unknown symbol: roundNearestTiesToAway (line: 315) [2025-04-29 10:51:45,574 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [286713296] [2025-04-29 10:51:45,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:45,575 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:45,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-04-29 10:51:45,576 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-04-29 10:51:45,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2025-04-29 10:51:45,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 10:51:45,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-29 10:51:45,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:51:45,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:51:45,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 10:51:45,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 10:51:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-29 10:51:45,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 10:51:45,746 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 10:51:45,746 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558273969] [2025-04-29 10:51:45,746 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-29 10:51:45,746 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [286713296] [2025-04-29 10:51:45,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [286713296] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:51:45,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:51:45,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 10:51:45,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050638153] [2025-04-29 10:51:45,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:51:45,746 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 10:51:45,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 10:51:45,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 10:51:45,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 10:51:45,747 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:51:45,780 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2025-04-29 10:51:45,782 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 10:51:45,782 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2025-04-29 10:51:45,782 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:51:45,783 INFO L225 Difference]: With dead ends: 59 [2025-04-29 10:51:45,783 INFO L226 Difference]: Without dead ends: 39 [2025-04-29 10:51:45,783 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-04-29 10:51:45,783 INFO L437 NwaCegarLoop]: 41 mSDtfsCounter, 5 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 10:51:45,784 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 130 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 10:51:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-04-29 10:51:45,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-04-29 10:51:45,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-04-29 10:51:45,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2025-04-29 10:51:45,791 INFO L79 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 28 [2025-04-29 10:51:45,791 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:51:45,791 INFO L485 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2025-04-29 10:51:45,791 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:45,791 INFO L278 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2025-04-29 10:51:45,792 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-04-29 10:51:45,792 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:51:45,792 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:51:45,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2025-04-29 10:51:45,994 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 [2025-04-29 10:51:46,192 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2025-04-29 10:51:46,193 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:51:46,193 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:51:46,193 INFO L85 PathProgramCache]: Analyzing trace with hash -812548960, now seen corresponding path program 1 times [2025-04-29 10:51:46,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:51:46,193 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863545298] [2025-04-29 10:51:46,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:46,193 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 [2025-04-29 10:51:46,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:51:46,195 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2025-04-29 10:51:46,196 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 (8)] Waiting until timeout for monitored process [2025-04-29 10:51:46,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-29 10:51:46,209 ERROR L246 FreeRefinementEngine]: Caught known exception: unknown symbol: roundNearestTiesToAway (line: 317) [2025-04-29 10:51:46,209 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1104474815] [2025-04-29 10:51:46,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:46,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:46,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-04-29 10:51:46,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-04-29 10:51:46,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2025-04-29 10:51:46,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-29 10:51:46,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-29 10:51:46,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:51:46,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:51:46,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 10:51:46,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 10:51:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-29 10:51:46,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 10:51:46,389 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 10:51:46,389 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863545298] [2025-04-29 10:51:46,389 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-29 10:51:46,390 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1104474815] [2025-04-29 10:51:46,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1104474815] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:51:46,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:51:46,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 10:51:46,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721808803] [2025-04-29 10:51:46,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:51:46,390 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 10:51:46,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 10:51:46,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 10:51:46,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 10:51:46,391 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:46,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:51:46,426 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2025-04-29 10:51:46,426 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 10:51:46,427 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2025-04-29 10:51:46,427 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:51:46,427 INFO L225 Difference]: With dead ends: 59 [2025-04-29 10:51:46,427 INFO L226 Difference]: Without dead ends: 39 [2025-04-29 10:51:46,428 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-29 10:51:46,428 INFO L437 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 10:51:46,428 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 129 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 10:51:46,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-04-29 10:51:46,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-04-29 10:51:46,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-04-29 10:51:46,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2025-04-29 10:51:46,432 INFO L79 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2025-04-29 10:51:46,432 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:51:46,432 INFO L485 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2025-04-29 10:51:46,432 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:46,433 INFO L278 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2025-04-29 10:51:46,433 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-04-29 10:51:46,433 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:51:46,433 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:51:46,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2025-04-29 10:51:46,635 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 (8)] Forceful destruction successful, exit code 0 [2025-04-29 10:51:46,833 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /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 [2025-04-29 10:51:46,834 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:51:46,834 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:51:46,834 INFO L85 PathProgramCache]: Analyzing trace with hash 846318223, now seen corresponding path program 1 times [2025-04-29 10:51:46,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:51:46,834 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993504735] [2025-04-29 10:51:46,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:46,834 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 [2025-04-29 10:51:46,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:51:46,836 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2025-04-29 10:51:46,837 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 (10)] Waiting until timeout for monitored process [2025-04-29 10:51:46,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 10:51:46,849 ERROR L246 FreeRefinementEngine]: Caught known exception: unknown symbol: roundNearestTiesToAway (line: 319) [2025-04-29 10:51:46,849 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1253322829] [2025-04-29 10:51:46,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:46,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-04-29 10:51:46,851 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-04-29 10:51:46,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2025-04-29 10:51:46,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 10:51:46,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-29 10:51:46,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:51:46,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 10:51:46,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 10:51:46,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 10:51:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-29 10:51:46,999 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 10:51:46,999 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 10:51:46,999 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993504735] [2025-04-29 10:51:46,999 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-29 10:51:46,999 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1253322829] [2025-04-29 10:51:46,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1253322829] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 10:51:46,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 10:51:46,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 10:51:46,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470457776] [2025-04-29 10:51:46,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 10:51:46,999 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 10:51:46,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 10:51:47,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 10:51:47,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 10:51:47,000 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 10:51:47,022 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2025-04-29 10:51:47,022 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 10:51:47,022 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2025-04-29 10:51:47,022 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 10:51:47,022 INFO L225 Difference]: With dead ends: 59 [2025-04-29 10:51:47,022 INFO L226 Difference]: Without dead ends: 39 [2025-04-29 10:51:47,023 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-29 10:51:47,023 INFO L437 NwaCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 10:51:47,023 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 127 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 10:51:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-04-29 10:51:47,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-04-29 10:51:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-04-29 10:51:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2025-04-29 10:51:47,027 INFO L79 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 30 [2025-04-29 10:51:47,028 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 10:51:47,028 INFO L485 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2025-04-29 10:51:47,028 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-04-29 10:51:47,028 INFO L278 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2025-04-29 10:51:47,028 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-04-29 10:51:47,028 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:51:47,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 10:51:47,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2025-04-29 10:51:47,230 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 (10)] Forceful destruction successful, exit code 0 [2025-04-29 10:51:47,429 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /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 [2025-04-29 10:51:47,429 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:51:47,429 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:51:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash 36971597, now seen corresponding path program 1 times [2025-04-29 10:51:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:51:47,430 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454730548] [2025-04-29 10:51:47,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:47,430 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 [2025-04-29 10:51:47,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:51:47,433 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2025-04-29 10:51:47,434 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 (12)] Waiting until timeout for monitored process [2025-04-29 10:51:47,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 10:51:47,450 ERROR L246 FreeRefinementEngine]: Caught known exception: unknown symbol: roundNearestTiesToAway (line: 315) [2025-04-29 10:51:47,450 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [885179289] [2025-04-29 10:51:47,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:51:47,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-04-29 10:51:47,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-04-29 10:51:47,454 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-04-29 10:51:47,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2025-04-29 10:51:47,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 10:51:47,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-29 10:51:47,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:51:47,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:51:47,534 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 10:51:47,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 10:51:47,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-29 10:51:47,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:51:47,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat