./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1 --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 fffafeb9226906a2b46ec5ef64bbbcb0cca40cbc27ac0739e5765ba82ad348ec --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:13:19,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:13:19,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:13:19,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:13:19,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:13:19,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:13:19,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:13:19,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:13:19,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:13:19,610 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:13:19,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:13:19,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:13:19,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:13:19,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:13:19,610 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:13:19,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:13:19,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:13:19,611 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:13:19,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:19,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:19,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:13:19,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:13:19,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:13:19,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:13:19,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:13:19,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:13:19,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:13:19,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:13:19,613 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1 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 -> fffafeb9226906a2b46ec5ef64bbbcb0cca40cbc27ac0739e5765ba82ad348ec [2024-12-02 10:13:19,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:13:19,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:13:19,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:13:19,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:13:19,856 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:13:19,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i [2024-12-02 10:13:22,482 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/39484b25d/5dfdf86bda42493590e2f86a45e602a9/FLAG4d886b1a9 [2024-12-02 10:13:22,759 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:13:22,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i [2024-12-02 10:13:22,776 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/39484b25d/5dfdf86bda42493590e2f86a45e602a9/FLAG4d886b1a9 [2024-12-02 10:13:23,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/39484b25d/5dfdf86bda42493590e2f86a45e602a9 [2024-12-02 10:13:23,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:13:23,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:13:23,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:13:23,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:13:23,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:13:23,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:13:23" (1/1) ... [2024-12-02 10:13:23,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b1e8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:23, skipping insertion in model container [2024-12-02 10:13:23,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:13:23" (1/1) ... [2024-12-02 10:13:23,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:13:23,576 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$150(StandardFunctionHandler.java:621) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2556) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:782) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2556) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2556) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1752) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:233) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-02 10:13:23,581 INFO L158 Benchmark]: Toolchain (without parser) took 526.07ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 100.6MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:13:23,582 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 82.6MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:13:23,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.60ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 100.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:13:23,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 82.6MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.60ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 100.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) 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: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1 --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 fffafeb9226906a2b46ec5ef64bbbcb0cca40cbc27ac0739e5765ba82ad348ec --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:13:25,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:13:25,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 10:13:25,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:13:25,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:13:25,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:13:25,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:13:25,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:13:25,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:13:25,414 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:13:25,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:13:25,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:13:25,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:13:25,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:13:25,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:13:25,416 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:13:25,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:25,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:25,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:13:25,417 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 10:13:25,418 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 10:13:25,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:13:25,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:13:25,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:13:25,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:13:25,418 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1 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 -> fffafeb9226906a2b46ec5ef64bbbcb0cca40cbc27ac0739e5765ba82ad348ec [2024-12-02 10:13:25,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:13:25,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:13:25,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:13:25,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:13:25,662 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:13:25,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i [2024-12-02 10:13:28,337 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/bb22e8ac0/9d9645786ff3474b92c47d616cc61ab5/FLAGf340e954f [2024-12-02 10:13:28,559 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:13:28,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i [2024-12-02 10:13:28,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/bb22e8ac0/9d9645786ff3474b92c47d616cc61ab5/FLAGf340e954f [2024-12-02 10:13:28,589 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/data/bb22e8ac0/9d9645786ff3474b92c47d616cc61ab5 [2024-12-02 10:13:28,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:13:28,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:13:28,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:13:28,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:13:28,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:13:28,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:13:28" (1/1) ... [2024-12-02 10:13:28,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59633ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:28, skipping insertion in model container [2024-12-02 10:13:28,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:13:28" (1/1) ... [2024-12-02 10:13:28,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:13:29,097 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i[63474,63487] [2024-12-02 10:13:29,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:13:29,107 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:13:29,158 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/sv-benchmarks/c/neural-networks/softmax_7_unsafe.c-amalgamation.i[63474,63487] [2024-12-02 10:13:29,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:13:29,268 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:13:29,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29 WrapperNode [2024-12-02 10:13:29,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:13:29,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:13:29,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:13:29,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:13:29,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,311 INFO L138 Inliner]: procedures = 562, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2024-12-02 10:13:29,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:13:29,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:13:29,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:13:29,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:13:29,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,342 INFO L175 MemorySlicer]: Split 21 memory accesses to 4 slices as follows [2, 4, 7, 8]. 38 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 7, 0]. The 4 writes are split as follows [0, 2, 0, 2]. [2024-12-02 10:13:29,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:13:29,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:13:29,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:13:29,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:13:29,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (1/1) ... [2024-12-02 10:13:29,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:29,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:13:29,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:13:29,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:13:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 10:13:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 10:13:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:13:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 10:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:13:29,503 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:13:29,504 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:13:30,268 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-02 10:13:30,269 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:13:30,277 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:13:30,277 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 10:13:30,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:13:30 BoogieIcfgContainer [2024-12-02 10:13:30,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:13:30,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:13:30,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:13:30,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:13:30,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:13:28" (1/3) ... [2024-12-02 10:13:30,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417e672b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:13:30, skipping insertion in model container [2024-12-02 10:13:30,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:29" (2/3) ... [2024-12-02 10:13:30,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417e672b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:13:30, skipping insertion in model container [2024-12-02 10:13:30,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:13:30" (3/3) ... [2024-12-02 10:13:30,285 INFO L128 eAbstractionObserver]: Analyzing ICFG softmax_7_unsafe.c-amalgamation.i [2024-12-02 10:13:30,299 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:13:30,300 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softmax_7_unsafe.c-amalgamation.i that has 1 procedures, 26 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-12-02 10:13:30,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:13:30,349 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5801b9e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:13:30,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:13:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 10:13:30,357 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:13:30,357 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:30,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:13:30,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:30,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1782050699, now seen corresponding path program 1 times [2024-12-02 10:13:30,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:13:30,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023559757] [2024-12-02 10:13:30,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:30,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:30,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:13:30,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:13:30,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 10:13:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:30,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:13:30,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:30,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:13:30,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:13:30,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023559757] [2024-12-02 10:13:30,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023559757] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:30,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:30,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:13:30,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337567093] [2024-12-02 10:13:30,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:30,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:13:30,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:13:30,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:13:30,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:13:30,531 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:13:30,544 INFO L93 Difference]: Finished difference Result 49 states and 70 transitions. [2024-12-02 10:13:30,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:13:30,545 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-12-02 10:13:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:13:30,551 INFO L225 Difference]: With dead ends: 49 [2024-12-02 10:13:30,551 INFO L226 Difference]: Without dead ends: 22 [2024-12-02 10:13:30,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:13:30,557 INFO L435 NwaCegarLoop]: 30 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, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:13:30,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:13:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-02 10:13:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-12-02 10:13:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2024-12-02 10:13:30,583 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2024-12-02 10:13:30,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:13:30,583 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2024-12-02 10:13:30,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-12-02 10:13:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 10:13:30,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:13:30,584 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:30,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 10:13:30,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:30,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:13:30,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:30,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1779290346, now seen corresponding path program 1 times [2024-12-02 10:13:30,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:13:30,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376297654] [2024-12-02 10:13:30,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:30,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:30,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:13:30,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:13:30,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 10:13:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:30,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:13:30,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:30,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:13:30,953 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:13:30,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376297654] [2024-12-02 10:13:30,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376297654] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:30,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:30,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:13:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981462224] [2024-12-02 10:13:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:30,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:13:30,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:13:30,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:13:30,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:13:30,955 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:31,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:13:31,505 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2024-12-02 10:13:31,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:13:31,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-12-02 10:13:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:13:31,506 INFO L225 Difference]: With dead ends: 38 [2024-12-02 10:13:31,507 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 10:13:31,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:13:31,507 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:13:31,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:13:31,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 10:13:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2024-12-02 10:13:31,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:31,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-12-02 10:13:31,512 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2024-12-02 10:13:31,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:13:31,512 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-12-02 10:13:31,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-12-02 10:13:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 10:13:31,513 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:13:31,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:31,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 10:13:31,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:31,714 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:13:31,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:31,714 INFO L85 PathProgramCache]: Analyzing trace with hash -823616510, now seen corresponding path program 1 times [2024-12-02 10:13:31,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:13:31,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151999402] [2024-12-02 10:13:31,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:31,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:31,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:13:31,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:13:31,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 10:13:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:31,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:13:31,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 10:13:31,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:13:31,888 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:13:31,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151999402] [2024-12-02 10:13:31,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151999402] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:31,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:31,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:13:31,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650681982] [2024-12-02 10:13:31,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:31,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:13:31,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:13:31,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:13:31,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:13:31,890 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:13:32,271 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2024-12-02 10:13:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:13:32,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-12-02 10:13:32,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:13:32,272 INFO L225 Difference]: With dead ends: 36 [2024-12-02 10:13:32,272 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 10:13:32,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:13:32,273 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:13:32,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 29 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:13:32,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 10:13:32,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2024-12-02 10:13:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-12-02 10:13:32,277 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 19 [2024-12-02 10:13:32,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:13:32,278 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-12-02 10:13:32,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:32,278 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-12-02 10:13:32,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 10:13:32,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:13:32,278 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:32,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 10:13:32,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:32,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:13:32,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:32,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2058290682, now seen corresponding path program 1 times [2024-12-02 10:13:32,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:13:32,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388066241] [2024-12-02 10:13:32,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:32,480 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:32,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:13:32,481 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:13:32,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 10:13:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:32,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:13:32,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 10:13:32,838 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:13:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 10:13:32,935 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:13:32,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388066241] [2024-12-02 10:13:32,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388066241] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:13:32,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:13:32,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-12-02 10:13:32,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521998071] [2024-12-02 10:13:32,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:13:32,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:13:32,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:13:32,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:13:32,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:13:32,937 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:34,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:13:34,730 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-12-02 10:13:34,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:34,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-12-02 10:13:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:13:34,732 INFO L225 Difference]: With dead ends: 44 [2024-12-02 10:13:34,732 INFO L226 Difference]: Without dead ends: 34 [2024-12-02 10:13:34,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:13:34,732 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:13:34,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 78 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 10:13:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-12-02 10:13:34,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-12-02 10:13:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-12-02 10:13:34,736 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 23 [2024-12-02 10:13:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:13:34,736 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-12-02 10:13:34,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-12-02 10:13:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 10:13:34,737 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:13:34,737 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] [2024-12-02 10:13:34,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 10:13:34,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:34,937 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:13:34,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:34,938 INFO L85 PathProgramCache]: Analyzing trace with hash 608986098, now seen corresponding path program 2 times [2024-12-02 10:13:34,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:13:34,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997578639] [2024-12-02 10:13:34,938 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:13:34,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:34,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:13:34,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:13:34,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 10:13:35,017 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:13:35,017 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:13:35,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:13:35,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:13:35,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:13:35,034 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:13:35,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997578639] [2024-12-02 10:13:35,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997578639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:35,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:35,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:13:35,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989193229] [2024-12-02 10:13:35,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:35,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:13:35,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:13:35,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:13:35,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:13:35,036 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:35,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:13:35,120 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-12-02 10:13:35,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:13:35,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-12-02 10:13:35,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:13:35,121 INFO L225 Difference]: With dead ends: 34 [2024-12-02 10:13:35,121 INFO L226 Difference]: Without dead ends: 31 [2024-12-02 10:13:35,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:13:35,122 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:13:35,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:13:35,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-12-02 10:13:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-12-02 10:13:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-12-02 10:13:35,127 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 27 [2024-12-02 10:13:35,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:13:35,127 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-12-02 10:13:35,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:35,127 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-12-02 10:13:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 10:13:35,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:13:35,128 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] [2024-12-02 10:13:35,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 10:13:35,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:35,328 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:13:35,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:35,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1118056078, now seen corresponding path program 1 times [2024-12-02 10:13:35,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:13:35,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74223079] [2024-12-02 10:13:35,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:35,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:35,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:13:35,330 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:13:35,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/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 (7)] Waiting until timeout for monitored process [2024-12-02 10:13:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:35,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:13:35,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:13:35,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:13:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:13:35,842 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:13:35,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74223079] [2024-12-02 10:13:35,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74223079] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:13:35,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:13:35,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-12-02 10:13:35,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581607323] [2024-12-02 10:13:35,842 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:13:35,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:35,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:13:35,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:35,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:35,843 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:13:36,021 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2024-12-02 10:13:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:13:36,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-12-02 10:13:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:13:36,023 INFO L225 Difference]: With dead ends: 36 [2024-12-02 10:13:36,023 INFO L226 Difference]: Without dead ends: 33 [2024-12-02 10:13:36,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:36,023 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:13:36,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:13:36,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-12-02 10:13:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-12-02 10:13:36,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-12-02 10:13:36,026 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 29 [2024-12-02 10:13:36,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:13:36,026 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-12-02 10:13:36,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-12-02 10:13:36,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 10:13:36,027 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:13:36,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:36,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/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 (7)] Ended with exit code 0 [2024-12-02 10:13:36,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:36,228 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:13:36,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash 708035114, now seen corresponding path program 2 times [2024-12-02 10:13:36,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:13:36,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605150277] [2024-12-02 10:13:36,229 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:13:36,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:36,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 10:13:36,231 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 10:13:36,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 10:13:37,094 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:13:37,094 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-02 10:13:37,094 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:13:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:13:37,597 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 10:13:37,597 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:13:37,598 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 10:13:37,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 10:13:37,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 10:13:37,802 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-12-02 10:13:37,823 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:13:37,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:13:37 BoogieIcfgContainer [2024-12-02 10:13:37,825 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:13:37,826 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:13:37,826 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:13:37,826 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:13:37,826 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:13:30" (3/4) ... [2024-12-02 10:13:37,828 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 10:13:37,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:13:37,829 INFO L158 Benchmark]: Toolchain (without parser) took 9236.81ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 37.5MB in the end (delta: 30.0MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2024-12-02 10:13:37,829 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:13:37,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.98ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 35.9MB in the end (delta: 31.5MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-12-02 10:13:37,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.18ms. Allocated memory is still 92.3MB. Free memory was 35.9MB in the beginning and 32.9MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:13:37,830 INFO L158 Benchmark]: Boogie Preprocessor took 47.58ms. Allocated memory is still 92.3MB. Free memory was 32.9MB in the beginning and 66.4MB in the end (delta: -33.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-12-02 10:13:37,830 INFO L158 Benchmark]: RCFGBuilder took 917.01ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 51.8MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:13:37,830 INFO L158 Benchmark]: TraceAbstraction took 7546.01ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 38.2MB in the end (delta: 12.8MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-12-02 10:13:37,830 INFO L158 Benchmark]: Witness Printer took 2.57ms. Allocated memory is still 92.3MB. Free memory was 38.2MB in the beginning and 37.5MB in the end (delta: 697.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:13:37,831 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 675.98ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 35.9MB in the end (delta: 31.5MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.18ms. Allocated memory is still 92.3MB. Free memory was 35.9MB in the beginning and 32.9MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.58ms. Allocated memory is still 92.3MB. Free memory was 32.9MB in the beginning and 66.4MB in the end (delta: -33.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 917.01ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 51.8MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7546.01ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 38.2MB in the end (delta: 12.8MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 2.57ms. Allocated memory is still 92.3MB. Free memory was 38.2MB in the beginning and 37.5MB in the end (delta: 697.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 873]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of expf at line 854, overapproximation of __builtin_isinf_sign at line 866, overapproximation of __builtin_isinf_sign at line 867. Possible FailurePath: [L863] float x[2], y[2]; [L864] x[0] = __VERIFIER_nondet_float() [L865] x[1] = __VERIFIER_nondet_float() [L866] EXPR x[0] [L866] COND FALSE !(!(!__builtin_isnan (x[0]) && !__builtin_isinf_sign (x[0]))) [L867] EXPR x[1] [L867] COND FALSE !(!(!__builtin_isnan (x[1]) && !__builtin_isinf_sign (x[1]))) [L868] CALL softmax(x, y, 2) [L847] int i; [L848] EXPR x[0] [L848] float max = x[0]; [L849] i = 1 VAL [i=1, max=-2.0, n=2, x={7:0}, y={3:0}] [L849] COND TRUE i < n VAL [i=1, max=-2.0, n=2, x={7:0}, y={3:0}] [L850] EXPR x[i] [L850] COND TRUE x[i] > max [L851] EXPR x[i] [L851] max = x[i] VAL [i=1, max=0.0, n=2, x={7:0}, y={3:0}] [L849] ++i VAL [i=2, max=0.0, n=2, x={7:0}, y={3:0}] [L849] COND FALSE !(i < n) VAL [max=0.0, n=2, x={7:0}, y={3:0}] [L852] float sum = 0.0f; [L853] i = 0 VAL [i=0, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L853] COND TRUE i < n VAL [i=0, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [i=1, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L853] COND TRUE i < n VAL [i=1, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [i=2, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L853] COND FALSE !(i < n) VAL [max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L858] i = 0 VAL [i=0, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L858] COND TRUE i < n VAL [i=0, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [i=1, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L858] COND TRUE i < n VAL [i=1, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [i=2, max=0.0, n=2, sum=0.0, x={7:0}, y={3:0}] [L858] COND FALSE !(i < n) VAL [max=0.0, sum=0.0, x={7:0}, y={3:0}] [L868] RET softmax(x, y, 2) [L869] int i; [L870] float sum = 0.0f; [L871] i = 0 VAL [i=0, sum=0.0, y={3:0}] [L871] COND TRUE i < 2 VAL [i=0, sum=0.0, y={3:0}] [L872] EXPR y[i] [L872] sum += y[i] [L871] ++i VAL [i=1, sum=NaN, y={3:0}] [L871] COND TRUE i < 2 VAL [i=1, sum=NaN, y={3:0}] [L872] EXPR y[i] [L872] sum += y[i] [L871] ++i VAL [i=2, sum=NaN, y={3:0}] [L871] COND FALSE !(i < 2) VAL [sum=NaN, y={3:0}] [L873] COND TRUE !(sum == 1.0f) VAL [y={3:0}] [L873] reach_error() VAL [y={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 281 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 133 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=6, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 476 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 32/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 10:13:37,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112b8d55-eec5-4064-be5d-9f9381b7fb84/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample