./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softmax_6_safe.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_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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_02cac022-4d95-4ecf-a4c3-153e311a8145/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 9fd98568ec3860a32f20962bde0f0b21c5bbc578b5380b51bf45be518669bd8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:29:55,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:29:55,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:29:55,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:29:55,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:29:55,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:29:55,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:29:55,115 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:29:55,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:29:55,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:29:55,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:29:55,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:29:55,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:29:55,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:29:55,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:29:55,117 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:29:55,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:55,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:29:55,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:29:55,118 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:29:55,119 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:29:55,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:29:55,119 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_02cac022-4d95-4ecf-a4c3-153e311a8145/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 -> 9fd98568ec3860a32f20962bde0f0b21c5bbc578b5380b51bf45be518669bd8c [2024-12-02 13:29:55,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:29:55,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:29:55,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:29:55,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:29:55,364 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:29:55,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i [2024-12-02 13:29:58,071 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/21b8b0ddc/6e5a220645854901b227a054e8e3f15e/FLAG7e98ca54a [2024-12-02 13:29:58,343 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:29:58,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i [2024-12-02 13:29:58,360 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/21b8b0ddc/6e5a220645854901b227a054e8e3f15e/FLAG7e98ca54a [2024-12-02 13:29:58,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/21b8b0ddc/6e5a220645854901b227a054e8e3f15e [2024-12-02 13:29:58,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:29:58,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:29:58,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:29:58,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:29:58,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:29:58,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:58" (1/1) ... [2024-12-02 13:29:58,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268c024f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:58, skipping insertion in model container [2024-12-02 13:29:58,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:58" (1/1) ... [2024-12-02 13:29:58,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:29:59,202 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 13:29:59,209 INFO L158 Benchmark]: Toolchain (without parser) took 554.54ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 98.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:29:59,209 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:59,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.88ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 98.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:29:59,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.88ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 98.8MB in the end (delta: 15.4MB). 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_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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_02cac022-4d95-4ecf-a4c3-153e311a8145/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 9fd98568ec3860a32f20962bde0f0b21c5bbc578b5380b51bf45be518669bd8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:30:00,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:30:01,002 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:30:01,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:30:01,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:30:01,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:30:01,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:30:01,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:30:01,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:30:01,029 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:30:01,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:30:01,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:30:01,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:30:01,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:30:01,029 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:30:01,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:30:01,030 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:30:01,031 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:30:01,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:30:01,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:30:01,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:30:01,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:30:01,033 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_02cac022-4d95-4ecf-a4c3-153e311a8145/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 -> 9fd98568ec3860a32f20962bde0f0b21c5bbc578b5380b51bf45be518669bd8c [2024-12-02 13:30:01,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:30:01,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:30:01,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:30:01,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:30:01,259 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:30:01,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i [2024-12-02 13:30:03,955 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/7fc26582b/22058af272e14296a4b13ab9232cf51d/FLAG10f5e9a0c [2024-12-02 13:30:04,206 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:30:04,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i [2024-12-02 13:30:04,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/7fc26582b/22058af272e14296a4b13ab9232cf51d/FLAG10f5e9a0c [2024-12-02 13:30:04,236 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/data/7fc26582b/22058af272e14296a4b13ab9232cf51d [2024-12-02 13:30:04,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:30:04,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:30:04,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:30:04,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:30:04,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:30:04,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:04,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ff8d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04, skipping insertion in model container [2024-12-02 13:30:04,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:04,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:30:04,748 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_02cac022-4d95-4ecf-a4c3-153e311a8145/sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i[63530,63543] [2024-12-02 13:30:04,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:30:04,758 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:30:04,813 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_02cac022-4d95-4ecf-a4c3-153e311a8145/sv-benchmarks/c/neural-networks/softmax_6_safe.c-amalgamation.i[63530,63543] [2024-12-02 13:30:04,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:30:04,950 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:30:04,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04 WrapperNode [2024-12-02 13:30:04,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:30:04,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:30:04,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:30:04,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:30:04,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:04,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:04,992 INFO L138 Inliner]: procedures = 562, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 107 [2024-12-02 13:30:04,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:30:04,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:30:04,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:30:04,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:30:05,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,021 INFO L175 MemorySlicer]: Split 21 memory accesses to 4 slices as follows [2, 7, 8, 4]. 38 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7, 0, 0]. The 4 writes are split as follows [0, 0, 2, 2]. [2024-12-02 13:30:05,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,030 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:30:05,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:30:05,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:30:05,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:30:05,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (1/1) ... [2024-12-02 13:30:05,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:30:05,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:30:05,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:30:05,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 13:30:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:30:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 13:30:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 13:30:05,180 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:30:05,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:30:06,351 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-02 13:30:06,351 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:30:06,358 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:30:06,359 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 13:30:06,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:30:06 BoogieIcfgContainer [2024-12-02 13:30:06,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:30:06,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:30:06,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:30:06,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:30:06,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:30:04" (1/3) ... [2024-12-02 13:30:06,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caaa007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:30:06, skipping insertion in model container [2024-12-02 13:30:06,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:30:04" (2/3) ... [2024-12-02 13:30:06,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caaa007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:30:06, skipping insertion in model container [2024-12-02 13:30:06,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:30:06" (3/3) ... [2024-12-02 13:30:06,368 INFO L128 eAbstractionObserver]: Analyzing ICFG softmax_6_safe.c-amalgamation.i [2024-12-02 13:30:06,378 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:30:06,379 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softmax_6_safe.c-amalgamation.i that has 1 procedures, 27 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-12-02 13:30:06,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:30:06,425 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;@40a1e76e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:30:06,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:30:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 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 13:30:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 13:30:06,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:06,433 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:06,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:06,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash 591001340, now seen corresponding path program 1 times [2024-12-02 13:30:06,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:06,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581020688] [2024-12-02 13:30:06,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:06,445 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 13:30:06,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:06,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:06,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:06,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:30:06,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:06,594 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 13:30:06,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:06,595 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581020688] [2024-12-02 13:30:06,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581020688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:06,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:06,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:30:06,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073035992] [2024-12-02 13:30:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:06,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:30:06,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:06,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:30:06,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:30:06,617 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.52) internal successors, (38), 26 states have internal predecessors, (38), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 13:30:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:06,627 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2024-12-02 13:30:06,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:30:06,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-12-02 13:30:06,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:06,633 INFO L225 Difference]: With dead ends: 51 [2024-12-02 13:30:06,633 INFO L226 Difference]: Without dead ends: 23 [2024-12-02 13:30:06,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 13:30:06,638 INFO L435 NwaCegarLoop]: 31 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, 31 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 13:30:06,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:06,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-12-02 13:30:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-12-02 13:30:06,657 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 13:30:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-12-02 13:30:06,661 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2024-12-02 13:30:06,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:06,661 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-12-02 13:30:06,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 13:30:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-12-02 13:30:06,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 13:30:06,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:06,662 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:06,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:06,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:06,863 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:06,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -676575961, now seen corresponding path program 1 times [2024-12-02 13:30:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:06,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438321405] [2024-12-02 13:30:06,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:06,865 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 13:30:06,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:06,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:06,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:06,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:30:06,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:07,041 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 13:30:07,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:07,041 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:07,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438321405] [2024-12-02 13:30:07,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438321405] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:07,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:07,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:30:07,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365039213] [2024-12-02 13:30:07,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:07,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:30:07,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:07,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:30:07,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:30:07,044 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 13:30:08,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 13:30:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:08,174 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2024-12-02 13:30:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:30:08,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2024-12-02 13:30:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:08,176 INFO L225 Difference]: With dead ends: 40 [2024-12-02 13:30:08,176 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 13:30:08,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 13:30:08,176 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:08,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 35 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 13:30:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 13:30:08,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2024-12-02 13:30:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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 13:30:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-12-02 13:30:08,180 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 16 [2024-12-02 13:30:08,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:08,181 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-12-02 13:30:08,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 13:30:08,181 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-02 13:30:08,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 13:30:08,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:08,181 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] [2024-12-02 13:30:08,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:08,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:08,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:08,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:08,382 INFO L85 PathProgramCache]: Analyzing trace with hash 237690127, now seen corresponding path program 1 times [2024-12-02 13:30:08,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:08,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725964092] [2024-12-02 13:30:08,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:08,383 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 13:30:08,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:08,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:08,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:08,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:30:08,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:08,581 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 13:30:08,581 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:08,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:08,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725964092] [2024-12-02 13:30:08,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725964092] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:08,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:08,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:30:08,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98297680] [2024-12-02 13:30:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:08,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:30:08,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:08,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:30:08,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:30:08,582 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 13:30:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:09,083 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2024-12-02 13:30:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:30:09,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-12-02 13:30:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:09,084 INFO L225 Difference]: With dead ends: 38 [2024-12-02 13:30:09,084 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 13:30:09,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 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 13:30:09,085 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:09,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 42 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:30:09,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 13:30:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-12-02 13:30:09,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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 13:30:09,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-12-02 13:30:09,091 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2024-12-02 13:30:09,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:09,091 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-12-02 13:30:09,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 13:30:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-12-02 13:30:09,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 13:30:09,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:09,092 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, 1] [2024-12-02 13:30:09,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:09,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:09,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:09,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash -617500137, now seen corresponding path program 1 times [2024-12-02 13:30:09,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:09,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58488544] [2024-12-02 13:30:09,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:09,294 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 13:30:09,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:09,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:09,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:09,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:30:09,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:09,703 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 13:30:09,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:30:09,811 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 13:30:09,811 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:09,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58488544] [2024-12-02 13:30:09,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58488544] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:30:09,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:30:09,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-12-02 13:30:09,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862402135] [2024-12-02 13:30:09,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:30:09,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:30:09,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:09,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:30:09,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:30:09,813 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 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 13:30:11,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:11,549 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2024-12-02 13:30:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:30:11,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 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) Word has length 24 [2024-12-02 13:30:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:11,551 INFO L225 Difference]: With dead ends: 46 [2024-12-02 13:30:11,551 INFO L226 Difference]: Without dead ends: 35 [2024-12-02 13:30:11,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 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 13:30:11,552 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:11,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 63 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 13:30:11,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-12-02 13:30:11,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2024-12-02 13:30:11,557 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 13:30:11,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-12-02 13:30:11,557 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 24 [2024-12-02 13:30:11,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:11,558 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-12-02 13:30:11,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 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 13:30:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-12-02 13:30:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 13:30:11,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:11,558 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] [2024-12-02 13:30:11,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:11,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:11,759 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:11,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1698698015, now seen corresponding path program 2 times [2024-12-02 13:30:11,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:11,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535402503] [2024-12-02 13:30:11,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:30:11,760 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 13:30:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:11,761 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:11,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:11,860 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:30:11,860 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:30:11,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:30:11,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:11,876 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 13:30:11,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:30:11,876 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:11,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535402503] [2024-12-02 13:30:11,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535402503] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:30:11,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:30:11,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:30:11,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270761042] [2024-12-02 13:30:11,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:30:11,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:30:11,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:11,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:30:11,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:30:11,877 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 13:30:11,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:11,920 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2024-12-02 13:30:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:30:11,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 28 [2024-12-02 13:30:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:11,921 INFO L225 Difference]: With dead ends: 36 [2024-12-02 13:30:11,921 INFO L226 Difference]: Without dead ends: 32 [2024-12-02 13:30:11,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 13:30:11,921 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:11,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:30:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-12-02 13:30:11,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2024-12-02 13:30:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 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 13:30:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-12-02 13:30:11,925 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 28 [2024-12-02 13:30:11,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:11,925 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-12-02 13:30:11,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 13:30:11,925 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-12-02 13:30:11,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 13:30:11,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:11,926 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:30:11,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:12,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:12,127 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:12,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash 299998211, now seen corresponding path program 1 times [2024-12-02 13:30:12,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:12,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893537562] [2024-12-02 13:30:12,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:30:12,128 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 13:30:12,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:12,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:12,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:30:12,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:30:12,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:30:12,636 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 13:30:12,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:30:12,680 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 13:30:12,680 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:30:12,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893537562] [2024-12-02 13:30:12,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893537562] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:30:12,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:30:12,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-12-02 13:30:12,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354412173] [2024-12-02 13:30:12,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:30:12,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:30:12,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:30:12,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:30:12,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:30:12,681 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 13:30:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:30:12,828 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2024-12-02 13:30:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:30:12,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2024-12-02 13:30:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:30:12,829 INFO L225 Difference]: With dead ends: 38 [2024-12-02 13:30:12,829 INFO L226 Difference]: Without dead ends: 34 [2024-12-02 13:30:12,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 13:30:12,830 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:30:12,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 91 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:30:12,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-12-02 13:30:12,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2024-12-02 13:30:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.15625) internal successors, (37), 32 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 13:30:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2024-12-02 13:30:12,835 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 30 [2024-12-02 13:30:12,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:30:12,835 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2024-12-02 13:30:12,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 13:30:12,836 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2024-12-02 13:30:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 13:30:12,836 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:30:12,836 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, 1] [2024-12-02 13:30:12,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:13,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:13,037 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:30:13,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:30:13,037 INFO L85 PathProgramCache]: Analyzing trace with hash 474250215, now seen corresponding path program 2 times [2024-12-02 13:30:13,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:30:13,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460801574] [2024-12-02 13:30:13,037 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:30:13,037 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 13:30:13,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:30:13,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:30:13,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:31:06,196 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:31:06,196 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-02 13:31:06,196 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:38:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:38:42,371 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 13:38:42,371 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:38:42,372 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:38:42,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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)] Forceful destruction successful, exit code 0 [2024-12-02 13:38:42,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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 13:38:42,576 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-12-02 13:38:42,608 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:38:42,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:38:42 BoogieIcfgContainer [2024-12-02 13:38:42,610 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:38:42,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:38:42,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:38:42,611 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:38:42,611 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:30:06" (3/4) ... [2024-12-02 13:38:42,613 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:38:42,613 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:38:42,614 INFO L158 Benchmark]: Toolchain (without parser) took 518374.27ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 67.2MB in the beginning and 57.5MB in the end (delta: 9.7MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2024-12-02 13:38:42,614 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:38:42,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.16ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 35.1MB in the end (delta: 31.9MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-12-02 13:38:42,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.91ms. Allocated memory is still 92.3MB. Free memory was 35.1MB in the beginning and 32.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:38:42,615 INFO L158 Benchmark]: Boogie Preprocessor took 45.90ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 32.2MB in the beginning and 107.8MB in the end (delta: -75.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-12-02 13:38:42,615 INFO L158 Benchmark]: RCFGBuilder took 1319.06ms. Allocated memory is still 134.2MB. Free memory was 107.8MB in the beginning and 92.8MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:38:42,615 INFO L158 Benchmark]: TraceAbstraction took 516249.46ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 57.5MB in the end (delta: 34.9MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-12-02 13:38:42,615 INFO L158 Benchmark]: Witness Printer took 2.39ms. Allocated memory is still 134.2MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 24.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:38:42,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.16ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 35.1MB in the end (delta: 31.9MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.91ms. Allocated memory is still 92.3MB. Free memory was 35.1MB in the beginning and 32.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.90ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 32.2MB in the beginning and 107.8MB in the end (delta: -75.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1319.06ms. Allocated memory is still 134.2MB. Free memory was 107.8MB in the beginning and 92.8MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 516249.46ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 57.5MB in the end (delta: 34.9MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Witness Printer took 2.39ms. Allocated memory is still 134.2MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 24.0kB). 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: 874]: 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=-0.0000000000000000000000018627845871526884, n=2, x={67108865:0}, y={-2147483581:0}] [L849] COND TRUE i < n VAL [i=1, max=-0.0000000000000000000000018627845871526884, n=2, x={67108865:0}, y={-2147483581:0}] [L850] EXPR x[i] [L850] COND TRUE x[i] > max [L851] EXPR x[i] [L851] max = x[i] VAL [i=1, max=0.000000000000000000000000000000000000035276332382463803, n=2, x={67108865:0}, y={-2147483581:0}] [L849] ++i VAL [i=2, max=0.000000000000000000000000000000000000035276332382463803, n=2, x={67108865:0}, y={-2147483581:0}] [L849] COND FALSE !(i < n) VAL [max=0.000000000000000000000000000000000000035276332382463803, n=2, x={67108865:0}, y={-2147483581:0}] [L852] float sum = 0.0f; [L853] i = 0 VAL [i=0, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0, x={67108865:0}, y={-2147483581:0}] [L853] COND TRUE i < n VAL [i=0, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0, x={67108865:0}, y={-2147483581:0}] [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [i=1, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.00000000000000000000000000000000001334787754176094, x={67108865:0}, y={-2147483581:0}] [L853] COND TRUE i < n VAL [i=1, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.00000000000000000000000000000000001334787754176094, x={67108865:0}, y={-2147483581:0}] [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [i=2, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L853] COND FALSE !(i < n) VAL [max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L858] i = 0 VAL [i=0, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L858] COND TRUE i < n VAL [i=0, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [i=1, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L858] COND TRUE i < n VAL [i=1, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [i=2, max=0.000000000000000000000000000000000000035276332382463803, n=2, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L858] COND FALSE !(i < n) VAL [max=0.000000000000000000000000000000000000035276332382463803, sum=0.0000000000000000000000000000000000000032587251839812194, x={67108865:0}, y={-2147483581:0}] [L868] RET softmax(x, y, 2) [L869] int i; [L870] float sum = 0.0f; [L871] i = 0 VAL [i=0, sum=0.0, y={-2147483581:0}] [L871] COND TRUE i < 2 VAL [i=0, sum=0.0, y={-2147483581:0}] [L872] EXPR y[i] [L872] sum += y[i] [L871] ++i VAL [i=1, sum=4096.04248046875, y={-2147483581:0}] [L871] COND TRUE i < 2 VAL [i=1, sum=4096.04248046875, y={-2147483581:0}] [L872] EXPR y[i] [L872] sum += y[i] [L871] ++i VAL [i=2, sum=0.999755859375, y={-2147483581:0}] [L871] COND FALSE !(i < 2) VAL [sum=0.999755859375, y={-2147483581:0}] [L873] float diff = fabsf(sum - 1.0f); VAL [diff=0.000244140625, y={-2147483581:0}] [L874] COND TRUE !(__builtin_islessequal(diff, 1e-5f)) VAL [y={-2147483581:0}] [L874] reach_error() VAL [y={-2147483581:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 516.2s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 309 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 139 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 54.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 166 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 274 SizeOfPredicates, 0 NumberOfNonLiveVariables, 482 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 13:38:42,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02cac022-4d95-4ecf-a4c3-153e311a8145/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