./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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_c4813901-d041-4767-a249-41e922039b4a/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 b20c751fe3b4d3ee45d964b20614165b2273f8b92a1ec5e2587eb98f2fd82c00 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:02:39,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:02:39,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:02:39,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:02:39,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:02:39,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:02:39,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:02:39,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:02:39,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:02:39,082 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:02:39,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:02:39,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:02:39,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:02:39,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:02:39,083 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:02:39,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:02:39,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:02:39,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:02:39,085 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:39,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:02:39,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:39,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:02:39,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:02:39,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:02:39,087 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_c4813901-d041-4767-a249-41e922039b4a/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 -> b20c751fe3b4d3ee45d964b20614165b2273f8b92a1ec5e2587eb98f2fd82c00 [2024-12-02 07:02:39,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:02:39,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:02:39,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:02:39,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:02:39,298 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:02:39,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i [2024-12-02 07:02:42,071 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/21ec48229/8541166f67364e04ae297784bb4b911b/FLAG4d3b9f3a0 [2024-12-02 07:02:42,450 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:02:42,451 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i [2024-12-02 07:02:42,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/21ec48229/8541166f67364e04ae297784bb4b911b/FLAG4d3b9f3a0 [2024-12-02 07:02:42,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/21ec48229/8541166f67364e04ae297784bb4b911b [2024-12-02 07:02:42,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:02:42,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:02:42,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:02:42,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:02:42,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:02:42,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:42" (1/1) ... [2024-12-02 07:02:42,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442ed381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:42, skipping insertion in model container [2024-12-02 07:02:42,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:42" (1/1) ... [2024-12-02 07:02:42,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:02:43,712 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_c4813901-d041-4767-a249-41e922039b4a/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i[72229,72242] [2024-12-02 07:02:44,096 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: fabs 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.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:783) 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:783) 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:783) 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:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java: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.handleLoopBody(CHandler.java:3602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1554) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-02 07:02:44,102 INFO L158 Benchmark]: Toolchain (without parser) took 1601.13ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 58.6MB in the end (delta: 52.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-02 07:02:44,102 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:02:44,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1598.76ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 58.6MB in the end (delta: 52.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-02 07:02:44,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1598.76ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 58.6MB in the end (delta: 52.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: 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_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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_c4813901-d041-4767-a249-41e922039b4a/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 b20c751fe3b4d3ee45d964b20614165b2273f8b92a1ec5e2587eb98f2fd82c00 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:02:45,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:02:45,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:02:45,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:02:45,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:02:45,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:02:45,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:02:45,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:02:45,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:02:45,908 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:02:45,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:02:45,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:02:45,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:02:45,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:02:45,909 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:02:45,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:02:45,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:02:45,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:02:45,911 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:02:45,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:02:45,911 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:02:45,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:02:45,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:02:45,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:02:45,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:45,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:45,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:02:45,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:02:45,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:02:45,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:02:45,913 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_c4813901-d041-4767-a249-41e922039b4a/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 -> b20c751fe3b4d3ee45d964b20614165b2273f8b92a1ec5e2587eb98f2fd82c00 [2024-12-02 07:02:46,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:02:46,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:02:46,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:02:46,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:02:46,156 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:02:46,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i [2024-12-02 07:02:48,910 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/ceb21e8ed/a28d1bc93c6c44128325b153d85537a9/FLAG38b6b17e0 [2024-12-02 07:02:49,227 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:02:49,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i [2024-12-02 07:02:49,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/ceb21e8ed/a28d1bc93c6c44128325b153d85537a9/FLAG38b6b17e0 [2024-12-02 07:02:49,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/data/ceb21e8ed/a28d1bc93c6c44128325b153d85537a9 [2024-12-02 07:02:49,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:02:49,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:02:49,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:02:49,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:02:49,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:02:49,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:49" (1/1) ... [2024-12-02 07:02:49,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60089e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49, skipping insertion in model container [2024-12-02 07:02:49,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:49" (1/1) ... [2024-12-02 07:02:49,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:02:50,416 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_c4813901-d041-4767-a249-41e922039b4a/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i[72229,72242] [2024-12-02 07:02:50,802 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 07:02:50,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:02:50,863 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:02:50,912 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_c4813901-d041-4767-a249-41e922039b4a/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_0_unsafe.c-amalgamation.i[72229,72242] [2024-12-02 07:02:51,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:02:51,297 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:02:51,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51 WrapperNode [2024-12-02 07:02:51,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:02:51,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:02:51,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:02:51,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:02:51,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,417 INFO L138 Inliner]: procedures = 780, calls = 2865, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 1048 [2024-12-02 07:02:51,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:02:51,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:02:51,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:02:51,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:02:51,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,465 INFO L175 MemorySlicer]: Split 745 memory accesses to 12 slices as follows [10, 2, 11, 7, 2, 11, 67, 515, 20, 79, 9, 12]. 69 percent of accesses are in the largest equivalence class. The 147 initializations are split as follows [8, 2, 8, 7, 2, 8, 32, 0, 16, 48, 8, 8]. The 548 writes are split as follows [0, 0, 0, 0, 0, 0, 17, 514, 3, 14, 0, 0]. [2024-12-02 07:02:51,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,505 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:02:51,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:02:51,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:02:51,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:02:51,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (1/1) ... [2024-12-02 07:02:51,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:51,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:02:51,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:02:51,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-12-02 07:02:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-12-02 07:02:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-12-02 07:02:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:02:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 07:02:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 07:02:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 07:02:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 07:02:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 07:02:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 07:02:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 07:02:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 07:02:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-12-02 07:02:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-12-02 07:02:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-12-02 07:02:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-12-02 07:02:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:02:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:02:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-12-02 07:02:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-12-02 07:02:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-12-02 07:02:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-12-02 07:02:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 07:02:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 07:02:51,861 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:02:51,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:03:07,008 INFO L? ?]: Removed 166 outVars from TransFormulas that were not future-live. [2024-12-02 07:03:07,008 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:03:07,019 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:03:07,020 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-12-02 07:03:07,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:03:07 BoogieIcfgContainer [2024-12-02 07:03:07,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:03:07,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:03:07,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:03:07,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:03:07,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:02:49" (1/3) ... [2024-12-02 07:03:07,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7685757f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:03:07, skipping insertion in model container [2024-12-02 07:03:07,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:51" (2/3) ... [2024-12-02 07:03:07,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7685757f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:03:07, skipping insertion in model container [2024-12-02 07:03:07,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:03:07" (3/3) ... [2024-12-02 07:03:07,029 INFO L128 eAbstractionObserver]: Analyzing ICFG tanh_w16_r1_case_0_unsafe.c-amalgamation.i [2024-12-02 07:03:07,043 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:03:07,044 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG tanh_w16_r1_case_0_unsafe.c-amalgamation.i that has 17 procedures, 195 locations, 1 initial locations, 32 loop locations, and 1 error locations. [2024-12-02 07:03:07,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:03:07,105 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;@5763269e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:03:07,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:03:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:03:07,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 07:03:07,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:03:07,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:03:07,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:03:07,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:03:07,120 INFO L85 PathProgramCache]: Analyzing trace with hash -796139321, now seen corresponding path program 1 times [2024-12-02 07:03:07,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:03:07,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857519623] [2024-12-02 07:03:07,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:03:07,140 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 07:03:07,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:03:07,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:03:07,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:03:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:03:38,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 5759 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:03:38,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:03:38,278 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 07:03:38,278 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:03:38,278 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:03:38,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857519623] [2024-12-02 07:03:38,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857519623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:03:38,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:03:38,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:03:38,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028756156] [2024-12-02 07:03:38,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:03:38,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:03:38,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:03:38,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:03:38,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:03:38,297 INFO L87 Difference]: Start difference. First operand has 151 states, 137 states have (on average 1.532846715328467) internal successors, (210), 138 states have internal predecessors, (210), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:03:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:03:38,326 INFO L93 Difference]: Finished difference Result 298 states and 448 transitions. [2024-12-02 07:03:38,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:03:38,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-12-02 07:03:38,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:03:38,333 INFO L225 Difference]: With dead ends: 298 [2024-12-02 07:03:38,333 INFO L226 Difference]: Without dead ends: 147 [2024-12-02 07:03:38,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 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 07:03:38,338 INFO L435 NwaCegarLoop]: 196 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, 196 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 07:03:38,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:03:38,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-12-02 07:03:38,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-12-02 07:03:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.328358208955224) internal successors, (178), 134 states have internal predecessors, (178), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:03:38,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 192 transitions. [2024-12-02 07:03:38,373 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 192 transitions. Word has length 35 [2024-12-02 07:03:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:03:38,373 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 192 transitions. [2024-12-02 07:03:38,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:03:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 192 transitions. [2024-12-02 07:03:38,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 07:03:38,375 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:03:38,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:03:38,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:03:38,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:03:38,576 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:03:38,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:03:38,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1555908906, now seen corresponding path program 1 times [2024-12-02 07:03:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:03:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333159285] [2024-12-02 07:03:38,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:03:38,579 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 07:03:38,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:03:38,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:03:38,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:09,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 5759 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:04:09,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:09,685 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 07:04:09,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:04:09,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:04:09,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333159285] [2024-12-02 07:04:09,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333159285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:09,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:09,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645393362] [2024-12-02 07:04:09,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:09,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:04:09,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:04:09,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:04:09,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:09,688 INFO L87 Difference]: Start difference. First operand 147 states and 192 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:04:13,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:04:13,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:13,770 INFO L93 Difference]: Finished difference Result 273 states and 356 transitions. [2024-12-02 07:04:13,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:04:13,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-12-02 07:04:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:13,772 INFO L225 Difference]: With dead ends: 273 [2024-12-02 07:04:13,772 INFO L226 Difference]: Without dead ends: 147 [2024-12-02 07:04:13,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:13,773 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 0 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:13,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 07:04:13,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-12-02 07:04:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-12-02 07:04:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.3208955223880596) internal successors, (177), 134 states have internal predecessors, (177), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:04:13,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 191 transitions. [2024-12-02 07:04:13,779 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 191 transitions. Word has length 35 [2024-12-02 07:04:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:13,780 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 191 transitions. [2024-12-02 07:04:13,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:04:13,780 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 191 transitions. [2024-12-02 07:04:13,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 07:04:13,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:13,781 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:13,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:13,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:13,981 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:04:13,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1459194712, now seen corresponding path program 1 times [2024-12-02 07:04:13,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:04:13,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030847853] [2024-12-02 07:04:13,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:13,985 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 07:04:13,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:04:13,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:13,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:46,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 5761 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 07:04:46,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:46,717 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 07:04:46,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:04:46,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:04:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030847853] [2024-12-02 07:04:46,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030847853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:46,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:46,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:04:46,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915042431] [2024-12-02 07:04:46,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:46,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:04:46,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:04:46,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:04:46,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:04:46,719 INFO L87 Difference]: Start difference. First operand 147 states and 191 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:04:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:46,926 INFO L93 Difference]: Finished difference Result 158 states and 203 transitions. [2024-12-02 07:04:46,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:04:46,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-12-02 07:04:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:46,930 INFO L225 Difference]: With dead ends: 158 [2024-12-02 07:04:46,930 INFO L226 Difference]: Without dead ends: 137 [2024-12-02 07:04:46,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:04:46,931 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 16 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:46,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 734 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:04:46,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-12-02 07:04:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-12-02 07:04:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 125 states have (on average 1.312) internal successors, (164), 125 states have internal predecessors, (164), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 07:04:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 176 transitions. [2024-12-02 07:04:46,940 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 176 transitions. Word has length 35 [2024-12-02 07:04:46,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:46,941 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 176 transitions. [2024-12-02 07:04:46,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:04:46,941 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 176 transitions. [2024-12-02 07:04:46,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 07:04:46,941 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:46,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:47,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:47,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:47,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:04:47,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:47,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1240559489, now seen corresponding path program 1 times [2024-12-02 07:04:47,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:04:47,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189346549] [2024-12-02 07:04:47,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:47,146 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 07:04:47,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:04:47,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:04:47,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:05:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:19,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 5761 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 07:05:19,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:05:21,721 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 07:05:21,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:05:21,721 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:05:21,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189346549] [2024-12-02 07:05:21,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189346549] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:05:21,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:05:21,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:05:21,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519662178] [2024-12-02 07:05:21,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:05:21,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:05:21,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:05:21,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:05:21,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:05:21,723 INFO L87 Difference]: Start difference. First operand 137 states and 176 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:05:25,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:05:29,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:05:33,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:05:37,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:05:42,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:05:46,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:05:51,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:05:56,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:06:00,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:06:04,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:04,951 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2024-12-02 07:06:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:04,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-12-02 07:06:04,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:04,955 INFO L225 Difference]: With dead ends: 158 [2024-12-02 07:06:04,955 INFO L226 Difference]: Without dead ends: 146 [2024-12-02 07:06:04,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:04,956 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 182 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:04,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 766 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 9 Unknown, 0 Unchecked, 43.2s Time] [2024-12-02 07:06:04,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-12-02 07:06:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2024-12-02 07:06:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 126 states have (on average 1.3095238095238095) internal successors, (165), 126 states have internal predecessors, (165), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 07:06:04,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 177 transitions. [2024-12-02 07:06:04,972 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 177 transitions. Word has length 35 [2024-12-02 07:06:04,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:04,973 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 177 transitions. [2024-12-02 07:06:04,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 07:06:04,973 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 177 transitions. [2024-12-02 07:06:04,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 07:06:04,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:04,975 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:06:05,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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)] Forceful destruction successful, exit code 0 [2024-12-02 07:06:05,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:06:05,176 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:05,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:05,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1809395744, now seen corresponding path program 1 times [2024-12-02 07:06:05,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:06:05,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937018479] [2024-12-02 07:06:05,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:05,179 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 07:06:05,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:06:05,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:06:05,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:06:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:37,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 5950 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:06:37,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:06:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:06:56,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:07:13,653 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:07:13,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937018479] [2024-12-02 07:07:13,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937018479] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:07:13,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [200812793] [2024-12-02 07:07:13,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:13,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:07:13,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:07:13,662 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:07:13,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-02 07:07:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:47,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 5950 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:07:47,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:07:48,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:07:48,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [200812793] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:07:48,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:07:48,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-12-02 07:07:48,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784820610] [2024-12-02 07:07:48,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:07:48,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:07:48,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:07:48,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:07:48,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:07:48,569 INFO L87 Difference]: Start difference. First operand 138 states and 177 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 07:07:48,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:48,825 INFO L93 Difference]: Finished difference Result 257 states and 333 transitions. [2024-12-02 07:07:48,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:07:48,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 81 [2024-12-02 07:07:48,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:48,827 INFO L225 Difference]: With dead ends: 257 [2024-12-02 07:07:48,827 INFO L226 Difference]: Without dead ends: 146 [2024-12-02 07:07:48,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:07:48,828 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 3 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:48,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:07:48,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-12-02 07:07:48,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-12-02 07:07:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 133 states have (on average 1.300751879699248) internal successors, (173), 133 states have internal predecessors, (173), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:07:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 187 transitions. [2024-12-02 07:07:48,836 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 187 transitions. Word has length 81 [2024-12-02 07:07:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:48,837 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 187 transitions. [2024-12-02 07:07:48,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 07:07:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 187 transitions. [2024-12-02 07:07:48,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 07:07:48,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:48,838 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:48,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-12-02 07:07:49,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:07:49,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:07:49,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:49,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:49,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1888533930, now seen corresponding path program 1 times [2024-12-02 07:07:49,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:07:49,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810527215] [2024-12-02 07:07:49,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:49,242 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 07:07:49,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:07:49,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:07:49,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:08:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:23,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:08:23,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:08:42,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:08:42,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:08:59,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:08:59,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810527215] [2024-12-02 07:08:59,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810527215] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:08:59,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [739263413] [2024-12-02 07:08:59,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:59,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:08:59,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:08:59,964 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:08:59,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-02 07:09:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:09:34,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:09:34,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:09:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:09:49,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:10:09,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:10:09,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [739263413] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:10:09,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:10:09,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-12-02 07:10:09,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153280158] [2024-12-02 07:10:09,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:09,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:10:09,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:10:09,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:10:09,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-12-02 07:10:09,931 INFO L87 Difference]: Start difference. First operand 146 states and 187 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 07:10:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:16,911 INFO L93 Difference]: Finished difference Result 183 states and 235 transitions. [2024-12-02 07:10:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:10:16,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 83 [2024-12-02 07:10:16,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:16,915 INFO L225 Difference]: With dead ends: 183 [2024-12-02 07:10:16,915 INFO L226 Difference]: Without dead ends: 142 [2024-12-02 07:10:16,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 238 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 07:10:16,917 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 218 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:16,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 638 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 07:10:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-12-02 07:10:16,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-12-02 07:10:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 129 states have (on average 1.2945736434108528) internal successors, (167), 129 states have internal predecessors, (167), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:10:16,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 181 transitions. [2024-12-02 07:10:16,930 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 181 transitions. Word has length 83 [2024-12-02 07:10:16,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:16,930 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 181 transitions. [2024-12-02 07:10:16,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 07:10:16,931 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 181 transitions. [2024-12-02 07:10:16,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 07:10:16,932 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:16,932 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:16,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-12-02 07:10:17,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 07:10:17,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:10:17,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:17,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:17,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2092028333, now seen corresponding path program 1 times [2024-12-02 07:10:17,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:10:17,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569630280] [2024-12-02 07:10:17,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:17,336 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 07:10:17,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:10:17,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:10:17,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 (10)] Waiting until timeout for monitored process [2024-12-02 07:10:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:51,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:10:51,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:11:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:11:10,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:11:27,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:11:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569630280] [2024-12-02 07:11:27,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569630280] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:11:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [458155640] [2024-12-02 07:11:27,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:27,383 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:11:27,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:11:27,385 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:11:27,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-12-02 07:12:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:12:01,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:12:01,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:12:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:12:16,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:12:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:12:37,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [458155640] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:12:37,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:12:37,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-12-02 07:12:37,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684112221] [2024-12-02 07:12:37,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:12:37,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:12:37,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:12:37,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:12:37,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-12-02 07:12:37,667 INFO L87 Difference]: Start difference. First operand 142 states and 181 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 07:12:45,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:12:45,166 INFO L93 Difference]: Finished difference Result 179 states and 229 transitions. [2024-12-02 07:12:45,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:12:45,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2024-12-02 07:12:45,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:12:45,170 INFO L225 Difference]: With dead ends: 179 [2024-12-02 07:12:45,170 INFO L226 Difference]: Without dead ends: 138 [2024-12-02 07:12:45,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 07:12:45,171 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 204 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:12:45,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 749 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 07:12:45,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-12-02 07:12:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-12-02 07:12:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 125 states have (on average 1.288) internal successors, (161), 125 states have internal predecessors, (161), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:12:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 175 transitions. [2024-12-02 07:12:45,180 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 175 transitions. Word has length 84 [2024-12-02 07:12:45,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:12:45,180 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 175 transitions. [2024-12-02 07:12:45,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 07:12:45,181 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 175 transitions. [2024-12-02 07:12:45,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 07:12:45,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:12:45,182 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:45,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 (10)] Forceful destruction successful, exit code 0 [2024-12-02 07:12:45,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-12-02 07:12:45,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 07:12:45,582 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:12:45,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:12:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash -572882969, now seen corresponding path program 1 times [2024-12-02 07:12:45,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:12:45,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45526930] [2024-12-02 07:12:45,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:12:45,585 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 07:12:45,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:12:45,587 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:12:45,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 (12)] Waiting until timeout for monitored process [2024-12-02 07:13:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:13:19,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 5956 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:13:19,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:13:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:13:39,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:13:56,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:13:56,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45526930] [2024-12-02 07:13:56,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45526930] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:13:56,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1785745032] [2024-12-02 07:13:56,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:13:56,324 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:13:56,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:13:56,326 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:13:56,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-12-02 07:14:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:14:31,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 5956 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:14:31,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:14:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:14:46,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:15:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 07:15:07,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1785745032] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:15:07,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:15:07,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-12-02 07:15:07,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770211247] [2024-12-02 07:15:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:15:07,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:15:07,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:15:07,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:15:07,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-12-02 07:15:07,363 INFO L87 Difference]: Start difference. First operand 138 states and 175 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 07:15:14,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:15:14,364 INFO L93 Difference]: Finished difference Result 175 states and 223 transitions. [2024-12-02 07:15:14,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:15:14,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 86 [2024-12-02 07:15:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:15:14,369 INFO L225 Difference]: With dead ends: 175 [2024-12-02 07:15:14,369 INFO L226 Difference]: Without dead ends: 134 [2024-12-02 07:15:14,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 247 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 07:15:14,370 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 206 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:15:14,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 592 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 07:15:14,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-12-02 07:15:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-12-02 07:15:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 121 states have (on average 1.28099173553719) internal successors, (155), 121 states have internal predecessors, (155), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:15:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 169 transitions. [2024-12-02 07:15:14,384 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 169 transitions. Word has length 86 [2024-12-02 07:15:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:15:14,384 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 169 transitions. [2024-12-02 07:15:14,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-12-02 07:15:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 169 transitions. [2024-12-02 07:15:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 07:15:14,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:15:14,385 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:14,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 (12)] Forceful destruction successful, exit code 0 [2024-12-02 07:15:14,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-12-02 07:15:14,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 07:15:14,786 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:15:14,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:15:14,786 INFO L85 PathProgramCache]: Analyzing trace with hash -701502516, now seen corresponding path program 1 times [2024-12-02 07:15:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:15:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610619818] [2024-12-02 07:15:14,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:15:14,789 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 07:15:14,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:15:14,791 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:15:14,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 (14)] Waiting until timeout for monitored process [2024-12-02 07:15:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:15:49,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 5957 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:15:49,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:16:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:16:09,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:16:26,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:16:26,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610619818] [2024-12-02 07:16:26,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610619818] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:16:26,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [143585765] [2024-12-02 07:16:26,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:26,314 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:16:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:16:26,316 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:16:26,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-12-02 07:17:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:17:02,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 5957 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:17:02,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:17:06,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:17:06,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:17:06,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [143585765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:17:06,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:17:06,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-12-02 07:17:06,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970227926] [2024-12-02 07:17:06,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:17:06,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:17:06,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:17:06,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:17:06,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:17:06,970 INFO L87 Difference]: Start difference. First operand 134 states and 169 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-12-02 07:17:08,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:17:08,015 INFO L93 Difference]: Finished difference Result 252 states and 322 transitions. [2024-12-02 07:17:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:17:08,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 87 [2024-12-02 07:17:08,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:17:08,017 INFO L225 Difference]: With dead ends: 252 [2024-12-02 07:17:08,017 INFO L226 Difference]: Without dead ends: 142 [2024-12-02 07:17:08,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 172 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:17:08,018 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 37 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:17:08,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 595 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:17:08,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-12-02 07:17:08,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 135. [2024-12-02 07:17:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.278688524590164) internal successors, (156), 122 states have internal predecessors, (156), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 07:17:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 170 transitions. [2024-12-02 07:17:08,027 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 170 transitions. Word has length 87 [2024-12-02 07:17:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:17:08,027 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 170 transitions. [2024-12-02 07:17:08,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-12-02 07:17:08,028 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 170 transitions. [2024-12-02 07:17:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 07:17:08,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:17:08,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:08,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-12-02 07:17:08,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 (14)] Ended with exit code 0 [2024-12-02 07:17:08,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:17:08,429 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:17:08,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:17:08,429 INFO L85 PathProgramCache]: Analyzing trace with hash -19379636, now seen corresponding path program 1 times [2024-12-02 07:17:08,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:17:08,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703637439] [2024-12-02 07:17:08,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:17:08,432 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 07:17:08,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:17:08,433 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 07:17:08,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4813901-d041-4767-a249-41e922039b4a/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 (16)] Waiting until timeout for monitored process